build.gradle

@@ -140,7 +140,7 @@ openapiProcessor {
         showWarnings true
         openApiNullable true
     }
-    springHs {
+    springHsOffice {
         processorName 'spring'
         processor 'io.openapiprocessor:openapi-processor-spring:2024.2'
         apiPath "$projectDir/src/main/resources/api-definition/hs-office/hs-office.yaml"
@@ -149,11 +149,25 @@ openapiProcessor {
         showWarnings true
         openApiNullable true
     }
+    springHsBooking {
+        processorName 'spring'
+        processor 'io.openapiprocessor:openapi-processor-spring:2024.2'
+        apiPath "$projectDir/src/main/resources/api-definition/hs-booking/hs-booking.yaml"
+        mapping "$projectDir/src/main/resources/api-definition/hs-booking/api-mappings.yaml"
+        targetDir "$buildDir/generated/sources/openapi-javax"
+        showWarnings true
+        openApiNullable true
+    }
 }
 sourceSets.main.java.srcDir 'build/generated/sources/openapi'
 abstract class ProcessSpring extends DefaultTask {}
 tasks.register('processSpring', ProcessSpring)
-['processSpringRoot', 'processSpringRbac', 'processSpringTest', 'processSpringHs'].each {
+['processSpringRoot',
+ 'processSpringRbac',
+ 'processSpringTest',
+ 'processSpringHsOffice',
+ 'processSpringHsBooking'
+].each {
     project.tasks.processSpring.dependsOn it
 }
 project.tasks.processResources.dependsOn processSpring

src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemController.java

@@ -0,0 +1,131 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import net.hostsharing.hsadminng.context.Context;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.api.HsBookingItemsApi;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemInsertResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemResource;
+import net.hostsharing.hsadminng.mapper.KeyValueMap;
+import net.hostsharing.hsadminng.mapper.Mapper;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.web.bind.annotation.RestController;
+import org.springframework.web.servlet.mvc.method.annotation.MvcUriComponentsBuilder;
+
+import java.util.List;
+import java.util.UUID;
+import java.util.function.BiConsumer;
+
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+
+@RestController
+public class HsBookingItemController implements HsBookingItemsApi {
+
+    @Autowired
+    private Context context;
+
+    @Autowired
+    private Mapper mapper;
+
+    @Autowired
+    private HsBookingItemRepository bookingItemRepo;
+
+    @Override
+    @Transactional(readOnly = true)
+    public ResponseEntity<List<HsBookingItemResource>> listBookingItemsByDebitorUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID debitorUuid) {
+        context.define(currentUser, assumedRoles);
+
+        final var entities = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+        final var resources = mapper.mapList(entities, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.ok(resources);
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<HsBookingItemResource> addBookingItem(
+            final String currentUser,
+            final String assumedRoles,
+            final HsBookingItemInsertResource body) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var entityToSave = mapper.map(body, HsBookingItemEntity.class, RESOURCE_TO_ENTITY_POSTMAPPER);
+
+        final var saved = bookingItemRepo.save(entityToSave);
+
+        final var uri =
+                MvcUriComponentsBuilder.fromController(getClass())
+                        .path("/api/hs/booking/items/{id}")
+                        .buildAndExpand(saved.getUuid())
+                        .toUri();
+        final var mapped = mapper.map(saved, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.created(uri).body(mapped);
+    }
+
+    @Override
+    @Transactional(readOnly = true)
+    public ResponseEntity<HsBookingItemResource> getBookingItemByUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var result = bookingItemRepo.findByUuid(bookingItemUuid);
+        return result
+                .map(bookingItemEntity -> ResponseEntity.ok(
+                        mapper.map(bookingItemEntity, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER)))
+                .orElseGet(() -> ResponseEntity.notFound().build());
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<Void> deleteBookingIemByUuid(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid) {
+        context.define(currentUser, assumedRoles);
+
+        final var result = bookingItemRepo.deleteByUuid(bookingItemUuid);
+        return result == 0
+                ? ResponseEntity.notFound().build()
+                : ResponseEntity.noContent().build();
+    }
+
+    @Override
+    @Transactional
+    public ResponseEntity<HsBookingItemResource> patchBookingItem(
+            final String currentUser,
+            final String assumedRoles,
+            final UUID bookingItemUuid,
+            final HsBookingItemPatchResource body) {
+
+        context.define(currentUser, assumedRoles);
+
+        final var current = bookingItemRepo.findByUuid(bookingItemUuid).orElseThrow();
+
+        new HsBookingItemEntityPatcher(current).apply(body);
+
+        final var saved = bookingItemRepo.save(current);
+        final var mapped = mapper.map(saved, HsBookingItemResource.class, ENTITY_TO_RESOURCE_POSTMAPPER);
+        return ResponseEntity.ok(mapped);
+    }
+
+    final BiConsumer<HsBookingItemEntity, HsBookingItemResource> ENTITY_TO_RESOURCE_POSTMAPPER = (entity, resource) -> {
+        resource.setValidFrom(entity.getValidity().lower());
+        if (entity.getValidity().hasUpperBound()) {
+            resource.setValidTo(entity.getValidity().upper().minusDays(1));
+        }
+    };
+
+    @SuppressWarnings("unchecked")
+    final BiConsumer<HsBookingItemInsertResource, HsBookingItemEntity> RESOURCE_TO_ENTITY_POSTMAPPER = (resource, entity) -> {
+        entity.setValidity(toPostgresDateRange(resource.getValidFrom(), resource.getValidTo()));
+        entity.putResources(KeyValueMap.from(resource.getResources()));
+    };
+}

src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntity.java

@@ -0,0 +1,182 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.json.JsonType;
+import io.hypersistence.utils.hibernate.type.range.PostgreSQLRangeType;
+import io.hypersistence.utils.hibernate.type.range.Range;
+import lombok.AccessLevel;
+import lombok.AllArgsConstructor;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import lombok.Setter;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorEntity;
+import net.hostsharing.hsadminng.hs.office.relation.HsOfficeRelationEntity;
+import net.hostsharing.hsadminng.mapper.PatchableMapWrapper;
+import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
+import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
+import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
+import net.hostsharing.hsadminng.stringify.Stringify;
+import net.hostsharing.hsadminng.stringify.Stringifyable;
+import org.hibernate.annotations.Type;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import jakarta.persistence.Transient;
+import jakarta.persistence.Version;
+import java.io.IOException;
+import java.time.LocalDate;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.UUID;
+
+import static java.util.Optional.ofNullable;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.lowerInclusiveFromPostgresDateRange;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.upperInclusiveFromPostgresDateRange;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Column.dependsOnColumn;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Nullable.NOT_NULL;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.DELETE;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.INSERT;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.SELECT;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Permission.UPDATE;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.ADMIN;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.AGENT;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.OWNER;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.Role.TENANT;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL.directlyFetchedByDependsOnColumn;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL.fetchedBySql;
+import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
+import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
+
+@Builder
+@Entity
+@Table(name = "hs_booking_item_rv")
+@Getter
+@Setter
+@NoArgsConstructor
+@AllArgsConstructor
+public class HsBookingItemEntity implements Stringifyable, RbacObject {
+
+    private static Stringify<HsBookingItemEntity> stringify = stringify(HsBookingItemEntity.class)
+            .withProp(e -> e.getDebitor().toShortString())
+            .withProp(e -> e.getValidity().asString())
+            .withProp(HsBookingItemEntity::getCaption)
+            .withProp(HsBookingItemEntity::getResources)
+            .quotedValues(false);
+
+    @Id
+    @GeneratedValue
+    private UUID uuid;
+
+    @Version
+    private int version;
+
+    @ManyToOne(optional = false)
+    @JoinColumn(name = "debitoruuid")
+    private HsOfficeDebitorEntity debitor;
+
+    @Builder.Default
+    @Type(PostgreSQLRangeType.class)
+    @Column(name = "validity", columnDefinition = "daterange")
+    private Range<LocalDate> validity = Range.emptyRange(LocalDate.class);
+
+    @Column(name = "caption")
+    private String caption;
+
+    @Builder.Default
+    @Setter(AccessLevel.NONE)
+    @Type(JsonType.class)
+    @Column(columnDefinition = "resources")
+    private Map<String, Object> resources = new HashMap<>();
+
+    @Transient
+    private PatchableMapWrapper resourcesWrapper;
+
+    public void setValidFrom(final LocalDate validFrom) {
+        setValidity(toPostgresDateRange(validFrom, getValidTo()));
+    }
+
+    public void setValidTo(final LocalDate validTo) {
+        setValidity(toPostgresDateRange(getValidFrom(), validTo));
+    }
+
+    public LocalDate getValidFrom() {
+        return lowerInclusiveFromPostgresDateRange(getValidity());
+    }
+
+    public LocalDate getValidTo() {
+        return upperInclusiveFromPostgresDateRange(getValidity());
+    }
+
+    public PatchableMapWrapper getResources() {
+        if ( resourcesWrapper == null ) {
+            resourcesWrapper = new PatchableMapWrapper(resources);
+        }
+        return resourcesWrapper;
+    }
+
+    public void putResources(Map<String, Object> entries) {
+        if ( resourcesWrapper == null ) {
+            resourcesWrapper = new PatchableMapWrapper(resources);
+        }
+        resourcesWrapper.assign(entries);
+    }
+
+    @Override
+    public String toString() {
+        return stringify.apply(this);
+    }
+
+    @Override
+    public String toShortString() {
+        return ofNullable(debitor).map(HsOfficeDebitorEntity::toShortString).orElse("D-???????") +
+                ":" + caption;
+    }
+
+    public static RbacView rbac() {
+        return rbacViewFor("bookingItem", HsBookingItemEntity.class)
+                .withIdentityView(SQL.query("""
+                        SELECT i.uuid as uuid, d.idName || ':' || i.caption as idName 
+                            FROM hs_booking_item i
+                            JOIN hs_office_debitor_iv d ON d.uuid = i.debitorUuid
+                        """))
+                .withRestrictedViewOrderBy(SQL.expression("validity"))
+                .withUpdatableColumns("version", "validity", "resources")
+
+                .importEntityAlias("debitor", HsOfficeDebitorEntity.class,
+                        dependsOnColumn("debitorUuid"),
+                        directlyFetchedByDependsOnColumn(),
+                        NOT_NULL)
+
+                .importEntityAlias("debitorRel", HsOfficeRelationEntity.class,
+                        dependsOnColumn("debitorUuid"),
+                        fetchedBySql("""
+                                SELECT ${columns}
+                                    FROM hs_office_relation debitorRel
+                                    JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+                                    WHERE debitor.uuid = ${REF}.debitorUuid
+                                """),
+                        NOT_NULL)
+                .toRole("debitorRel", ADMIN).grantPermission(INSERT)
+                .toRole("global", ADMIN).grantPermission(DELETE)
+
+                .createRole(OWNER, (with) -> {
+                    with.incomingSuperRole("debitorRel", AGENT);
+                    with.permission(UPDATE);
+                })
+                .createSubRole(ADMIN)
+                .createSubRole(TENANT, (with) -> {
+                    with.outgoingSubRole("debitorRel", TENANT);
+                    with.permission(SELECT);
+                });
+    }
+
+    public static void main(String[] args) throws IOException {
+        rbac().generateWithBaseFileName("6-hs-booking/601-booking-item/6013-hs-booking-item-rbac");
+    }
+}

src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcher.java

@@ -0,0 +1,28 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.mapper.EntityPatcher;
+import net.hostsharing.hsadminng.mapper.KeyValueMap;
+import net.hostsharing.hsadminng.mapper.OptionalFromJson;
+
+import java.util.Optional;
+
+
+public class HsBookingItemEntityPatcher implements EntityPatcher<HsBookingItemPatchResource> {
+
+    private final HsBookingItemEntity entity;
+
+    public HsBookingItemEntityPatcher(final HsBookingItemEntity entity) {
+        this.entity = entity;
+    }
+
+    @Override
+    public void apply(final HsBookingItemPatchResource resource) {
+        OptionalFromJson.of(resource.getCaption())
+                .ifPresent(entity::setCaption);
+        Optional.ofNullable(resource.getResources())
+                .ifPresent(r -> entity.getResources().patch(KeyValueMap.from(resource.getResources())));
+        OptionalFromJson.of(resource.getValidTo())
+                .ifPresent(entity::setValidTo);
+    }
+}

src/main/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepository.java

@@ -0,0 +1,21 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import org.springframework.data.repository.Repository;
+
+import java.util.List;
+import java.util.Optional;
+import java.util.UUID;
+
+public interface HsBookingItemRepository extends Repository<HsBookingItemEntity, UUID> {
+
+    List<HsBookingItemEntity> findAll();
+    Optional<HsBookingItemEntity> findByUuid(final UUID bookingItemUuid);
+
+    List<HsBookingItemEntity> findAllByDebitorUuid(final UUID bookingItemUuid);
+
+    HsBookingItemEntity save(HsBookingItemEntity current);
+
+    int deleteByUuid(final UUID uuid);
+
+    long count();
+}

src/main/java/net/hostsharing/hsadminng/hs/office/bankaccount/HsOfficeBankAccountController.java

@@ -74,11 +74,11 @@ public class HsOfficeBankAccountController implements HsOfficeBankAccountsApi {
     public ResponseEntity<HsOfficeBankAccountResource> getBankAccountByUuid(
             final String currentUser,
             final String assumedRoles,
-            final UUID BankAccountUuid) {
+            final UUID bankAccountUuid) {
 
         context.define(currentUser, assumedRoles);
 
-        final var result = bankAccountRepo.findByUuid(BankAccountUuid);
+        final var result = bankAccountRepo.findByUuid(bankAccountUuid);
         if (result.isEmpty()) {
             return ResponseEntity.notFound().build();
         }

src/main/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionEntity.java

@@ -18,7 +18,6 @@ import jakarta.persistence.*;
 import java.io.IOException;
 import java.math.BigDecimal;
 import java.time.LocalDate;
-import java.util.Optional;
 import java.util.UUID;
 
 import static java.util.Optional.ofNullable;

src/main/java/net/hostsharing/hsadminng/hs/office/coopshares/HsOfficeCoopSharesTransactionController.java

@@ -2,9 +2,7 @@ package net.hostsharing.hsadminng.hs.office.coopshares;
 
 import jakarta.persistence.EntityNotFoundException;
 import net.hostsharing.hsadminng.context.Context;
-import net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionEntity;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.api.HsOfficeCoopSharesApi;
-import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeCoopAssetsTransactionInsertResource;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeCoopSharesTransactionInsertResource;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeCoopSharesTransactionResource;
 import net.hostsharing.hsadminng.mapper.Mapper;

src/main/java/net/hostsharing/hsadminng/hs/office/coopshares/HsOfficeCoopSharesTransactionEntity.java

@@ -6,7 +6,6 @@ import lombok.Getter;
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 import net.hostsharing.hsadminng.errors.DisplayName;
-import net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionEntity;
 import net.hostsharing.hsadminng.hs.office.membership.HsOfficeMembershipEntity;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
 import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;

src/main/java/net/hostsharing/hsadminng/mapper/KeyValueMap.java

@@ -0,0 +1,14 @@
+package net.hostsharing.hsadminng.mapper;
+
+import java.util.Map;
+
+public class KeyValueMap {
+
+    @SuppressWarnings("unchecked")
+    public static Map<String, Object> from(final Object obj) {
+        if (obj instanceof Map<?, ?>) {
+            return (Map<String, Object>) obj;
+        }
+        throw new ClassCastException("Map expected, but got: " + obj);
+    }
+}

src/main/java/net/hostsharing/hsadminng/mapper/PatchMap.java

@@ -0,0 +1,30 @@
+package net.hostsharing.hsadminng.mapper;
+
+import org.apache.commons.lang3.tuple.ImmutablePair;
+
+import jakarta.validation.constraints.NotNull;
+import java.util.Map;
+import java.util.TreeMap;
+
+import static java.util.Arrays.stream;
+
+/**
+ * This is a map which can take key-value-pairs where the value can be null
+ * thus JSON nullable object structures from HTTP PATCH can be represented.
+ */
+public class PatchMap extends TreeMap<String, Object> {
+
+    public PatchMap(final ImmutablePair<String, Object>[] entries) {
+        stream(entries).forEach(r -> put(r.getKey(), r.getValue()));
+    }
+
+    @SafeVarargs
+    public static Map<String, Object> patchMap(final ImmutablePair<String, Object>... entries) {
+        return new PatchMap(entries);
+    }
+
+    @NotNull
+    public static ImmutablePair<String, Object> entry(final String key, final Object value) {
+        return new ImmutablePair<>(key, value);
+    }
+}

src/main/java/net/hostsharing/hsadminng/mapper/PatchableMapWrapper.java

@@ -0,0 +1,114 @@
+package net.hostsharing.hsadminng.mapper;
+
+import org.apache.commons.lang3.tuple.ImmutablePair;
+
+import jakarta.validation.constraints.NotNull;
+import java.util.Collection;
+import java.util.Map;
+import java.util.Set;
+
+import static java.util.stream.Collectors.joining;
+
+/** This class wraps another (usually persistent) map and
+ * supports applying `PatchMap` as well as a toString method with stable entry order.
+ */
+public class PatchableMapWrapper implements Map<String, Object> {
+
+    private final Map<String, Object> delegate;
+
+    public PatchableMapWrapper(final Map<String, Object> map) {
+        delegate = map;
+    }
+
+    @NotNull
+    public static ImmutablePair<String, Object> entry(final String key, final Object value) {
+        return new ImmutablePair<>(key, value);
+    }
+
+    public void assign(final Map<String, Object> entries) {
+        delegate.clear();
+        delegate.putAll(entries);
+    }
+
+    public void patch(final Map<String, Object> patch) {
+        patch.forEach((key, value) -> {
+            if (value == null) {
+                remove(key);
+            } else {
+                put(key, value);
+            }
+        });
+    }
+
+    public String toString() {
+        return "{ "
+                + (
+                    keySet().stream().sorted()
+                            .map(k -> k + ": " + get(k)))
+                            .collect(joining(", ")
+                )
+                + " }";
+    }
+
+    // --- below just delegating methods --------------------------------
+
+    @Override
+    public int size() {
+        return delegate.size();
+    }
+
+    @Override
+    public boolean isEmpty() {
+        return delegate.isEmpty();
+    }
+
+    @Override
+    public boolean containsKey(final Object key) {
+        return delegate.containsKey(key);
+    }
+
+    @Override
+    public boolean containsValue(final Object value) {
+        return delegate.containsValue(value);
+    }
+
+    @Override
+    public Object get(final Object key) {
+        return delegate.get(key);
+    }
+
+    @Override
+    public Object put(final String key, final Object value) {
+        return delegate.put(key, value);
+    }
+
+    @Override
+    public Object remove(final Object key) {
+        return delegate.remove(key);
+    }
+
+    @Override
+    public void putAll(final Map<? extends String, ?> m) {
+        delegate.putAll(m);
+    }
+
+    @Override
+    public void clear() {
+        delegate.clear();
+    }
+
+    @Override
+    public Set<String> keySet() {
+        return delegate.keySet();
+    }
+
+    @Override
+    public Collection<Object> values() {
+        return delegate.values();
+    }
+
+    @Override
+    public Set<Entry<String, Object>> entrySet() {
+        return delegate.entrySet();
+    }
+}

src/main/resources/api-definition/hs-booking/api-mappings.yaml

@@ -0,0 +1,17 @@
+openapi-processor-mapping: v2
+
+options:
+    package-name: net.hostsharing.hsadminng.hs.booking.generated.api.v1
+    model-name-suffix: Resource
+    bean-validation: true
+
+map:
+    result: org.springframework.http.ResponseEntity
+
+    types:
+        - type: array => java.util.List
+        - type: string:uuid => java.util.UUID
+
+    paths:
+        /api/hs/booking/items/{bookingItemUuid}:
+            null: org.openapitools.jackson.nullable.JsonNullable

src/main/resources/api-definition/hs-booking/auth.yaml

@@ -0,0 +1,20 @@
+
+components:
+
+    parameters:
+
+        currentUser:
+            name: current-user
+            in: header
+            required: true
+            schema:
+                type: string
+            description: Identifying name of the currently logged in user.
+
+        assumedRoles:
+            name: assumed-roles
+            in: header
+            required: false
+            schema:
+                type: string
+            description: Semicolon-separated list of roles to assume. The current user needs to have the right to assume these roles.

src/main/resources/api-definition/hs-booking/error-responses.yaml

@@ -0,0 +1,40 @@
+components:
+
+    responses:
+        NotFound:
+            description: The specified  was not found.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Unauthorized:
+            description: The current user is unknown or not authorized.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Forbidden:
+            description: The current user or none of the assumed or roles is granted access to the resource.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+        Conflict:
+            description: The request could not be completed due to a conflict with the current state of the target resource.
+            content:
+                application/json:
+                    schema:
+                        $ref: '#/components/schemas/Error'
+
+    schemas:
+
+        Error:
+            type: object
+            properties:
+                code:
+                    type: string
+                message:
+                    type: string
+            required:
+                - code
+                - message

src/main/resources/api-definition/hs-booking/hs-booking-item-schemas.yaml

@@ -0,0 +1,113 @@
+
+components:
+
+    schemas:
+
+        HsBookingItem:
+            type: object
+            properties:
+                uuid:
+                    type: string
+                    format: uuid
+                caption:
+                    type: string
+                validFrom:
+                   type: string
+                   format: date
+                validTo:
+                   type: string
+                   format: date
+                resources:
+                    $ref: '#/components/schemas/BookingResources'
+            required:
+                - uuid
+                - validFrom
+                - validTo
+                - resources
+
+        HsBookingItemPatch:
+            type: object
+            properties:
+                caption:
+                    type: string
+                    nullable: true
+                validTo:
+                    type: string
+                    format: date
+                    nullable: true
+                resources:
+                    $ref: '#/components/schemas/BookingResources'
+
+        HsBookingItemInsert:
+            type: object
+            properties:
+                debitorUuid:
+                    type: string
+                    format: uuid
+                    nullable: false
+                caption:
+                    type: string
+                    minLength: 3
+                    maxLength:
+                    nullable: false
+                validFrom:
+                    type: string
+                    format: date
+                    nullable: false
+                validTo:
+                    type: string
+                    format: date
+                    nullable: true
+                resources:
+                    $ref: '#/components/schemas/BookingResources'
+            required:
+                - caption
+                - debitorUuid
+                - validFrom
+                - resources
+            additionalProperties: false
+
+        BookingResources:
+            anyOf:
+                - $ref: '#/components/schemas/ManagedServerBookingResources'
+                - $ref: '#/components/schemas/ManagedWebspaceBookingResources'
+
+        ManagedServerBookingResources:
+            type: object
+            properties:
+                caption:
+                    type: string
+                    minLength: 3
+                    maxLength:
+                    nullable: false
+                CPU:
+                    type: integer
+                    minimum: 1
+                    maximum: 16
+                SSD:
+                    type: integer
+                    minimum: 16
+                    maximum: 4096
+                HDD:
+                    type: integer
+                    minimum: 16
+                    maximum: 4096
+            additionalProperties: false
+
+        ManagedWebspaceBookingResources:
+            type: object
+            properties:
+                disk:
+                    type: integer
+                    minimum: 1
+                    maximum: 16
+                SSD:
+                    type: integer
+                    minimum: 16
+                    maximum: 4096
+                HDD:
+                    type: integer
+                    minimum: 16
+                    maximum: 4096
+            additionalProperties: false
+

src/main/resources/api-definition/hs-booking/hs-booking-items-with-uuid.yaml

@@ -0,0 +1,83 @@
+get:
+    tags:
+        - hs-booking-items
+    description: 'Fetch a single booking item its uuid, if visible for the current subject.'
+    operationId: getBookingItemByUuid
+    parameters:
+        - $ref: 'auth.yaml#/components/parameters/currentUser'
+        - $ref: 'auth.yaml#/components/parameters/assumedRoles'
+        - name: bookingItemUuid
+          in: path
+          required: true
+          schema:
+              type: string
+              format: uuid
+          description: UUID of the booking item to fetch.
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+
+        "401":
+            $ref: 'error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: 'error-responses.yaml#/components/responses/Forbidden'
+
+patch:
+    tags:
+        - hs-booking-items
+    description: 'Updates a single booking item identified by its uuid, if permitted for the current subject.'
+    operationId: patchBookingItem
+    parameters:
+        -   $ref: 'auth.yaml#/components/parameters/currentUser'
+        -   $ref: 'auth.yaml#/components/parameters/assumedRoles'
+        -   name: bookingItemUuid
+            in: path
+            required: true
+            schema:
+                type: string
+                format: uuid
+    requestBody:
+        content:
+            'application/json':
+                schema:
+                    $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItemPatch'
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: 'error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: 'error-responses.yaml#/components/responses/Forbidden'
+
+delete:
+    tags:
+        - hs-booking-items
+    description: 'Delete a single booking item identified by its uuid, if permitted for the current subject.'
+    operationId: deleteBookingIemByUuid
+    parameters:
+        - $ref: 'auth.yaml#/components/parameters/currentUser'
+        - $ref: 'auth.yaml#/components/parameters/assumedRoles'
+        - name: bookingItemUuid
+          in: path
+          required: true
+          schema:
+              type: string
+              format: uuid
+          description: UUID of the booking item to delete.
+    responses:
+        "204":
+            description: No Content
+        "401":
+            $ref: 'error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: 'error-responses.yaml#/components/responses/Forbidden'
+        "404":
+            $ref: 'error-responses.yaml#/components/responses/NotFound'

src/main/resources/api-definition/hs-booking/hs-booking-items.yaml

@@ -0,0 +1,58 @@
+get:
+    summary: Returns a list of all booking items for a specified debitor.
+    description: Returns the list of all booking items for a specified debitor which are visible to the current user or any of it's assumed roles.
+    tags:
+        - hs-booking-items
+    operationId: listBookingItemsByDebitorUuid
+    parameters:
+        - $ref: 'auth.yaml#/components/parameters/currentUser'
+        - $ref: 'auth.yaml#/components/parameters/assumedRoles'
+        - name: debitorUuid
+          in: query
+          required: true
+          schema:
+              type: string
+              format: uuid
+          description: The UUID of the debitor, whose booking items are to be listed.
+    responses:
+        "200":
+            description: OK
+            content:
+                'application/json':
+                    schema:
+                        type: array
+                        items:
+                            $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: 'error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: 'error-responses.yaml#/components/responses/Forbidden'
+
+post:
+    summary: Adds a new booking item.
+    tags:
+        - hs-booking-items
+    operationId: addBookingItem
+    parameters:
+        - $ref: 'auth.yaml#/components/parameters/currentUser'
+        - $ref: 'auth.yaml#/components/parameters/assumedRoles'
+    requestBody:
+        description: A JSON object describing the new booking item.
+        required: true
+        content:
+            application/json:
+                schema:
+                    $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItemInsert'
+    responses:
+        "201":
+            description: Created
+            content:
+                'application/json':
+                    schema:
+                        $ref: 'hs-booking-item-schemas.yaml#/components/schemas/HsBookingItem'
+        "401":
+            $ref: 'error-responses.yaml#/components/responses/Unauthorized'
+        "403":
+            $ref: 'error-responses.yaml#/components/responses/Forbidden'
+        "409":
+            $ref: 'error-responses.yaml#/components/responses/Conflict'

src/main/resources/api-definition/hs-booking/hs-booking.yaml

@@ -0,0 +1,17 @@
+openapi: 3.0.3
+info:
+  title: Hostsharing hsadmin-ng API
+  version: v0
+servers:
+  - url: http://localhost:8080
+    description: Local development default URL.
+
+paths:
+
+  # Items
+
+  /api/hs/booking/items:
+    $ref: "hs-booking-items.yaml"
+
+  /api/hs/booking/items/{bookingItemUuid}:
+    $ref: "hs-booking-items-with-uuid.yaml"

src/main/resources/db/changelog/6-hs-booking/601-booking-item/6010-hs-booking-item.sql

@@ -0,0 +1,24 @@
+--liquibase formatted sql
+
+-- ============================================================================
+--changeset booking-item-MAIN-TABLE:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+create table if not exists hs_booking_item
+(
+    uuid                uuid unique references RbacObject (uuid),
+    version             int not null default 0,
+    debitorUuid         uuid not null references hs_office_debitor(uuid),
+    validity            daterange not null,
+    caption             varchar(80) not null,
+    resources           jsonb not null
+);
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-MAIN-TABLE-JOURNAL:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+call create_journal('hs_booking_item');
+--//

src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.md

@@ -0,0 +1,285 @@
+### rbac bookingItem
+
+This code generated was by RbacViewMermaidFlowchartGenerator, do not amend manually.
+
+```mermaid
+%%{init:{'flowchart':{'htmlLabels':false}}}%%
+flowchart TB
+
+subgraph debitor.debitorRel.anchorPerson["`**debitor.debitorRel.anchorPerson**`"]
+    direction TB
+    style debitor.debitorRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.anchorPerson:roles[ ]
+        style debitor.debitorRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.anchorPerson:OWNER[[debitor.debitorRel.anchorPerson:OWNER]]
+        role:debitor.debitorRel.anchorPerson:ADMIN[[debitor.debitorRel.anchorPerson:ADMIN]]
+        role:debitor.debitorRel.anchorPerson:REFERRER[[debitor.debitorRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel.holderPerson["`**debitor.debitorRel.holderPerson**`"]
+    direction TB
+    style debitor.debitorRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.holderPerson:roles[ ]
+        style debitor.debitorRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.holderPerson:OWNER[[debitor.debitorRel.holderPerson:OWNER]]
+        role:debitor.debitorRel.holderPerson:ADMIN[[debitor.debitorRel.holderPerson:ADMIN]]
+        role:debitor.debitorRel.holderPerson:REFERRER[[debitor.debitorRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.anchorPerson["`**debitorRel.anchorPerson**`"]
+    direction TB
+    style debitorRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.anchorPerson:roles[ ]
+        style debitorRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.anchorPerson:OWNER[[debitorRel.anchorPerson:OWNER]]
+        role:debitorRel.anchorPerson:ADMIN[[debitorRel.anchorPerson:ADMIN]]
+        role:debitorRel.anchorPerson:REFERRER[[debitorRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.holderPerson["`**debitorRel.holderPerson**`"]
+    direction TB
+    style debitorRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.holderPerson:roles[ ]
+        style debitorRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.holderPerson:OWNER[[debitorRel.holderPerson:OWNER]]
+        role:debitorRel.holderPerson:ADMIN[[debitorRel.holderPerson:ADMIN]]
+        role:debitorRel.holderPerson:REFERRER[[debitorRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel["`**debitor.debitorRel**`"]
+    direction TB
+    style debitor.debitorRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel:roles[ ]
+        style debitor.debitorRel:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel:OWNER[[debitor.debitorRel:OWNER]]
+        role:debitor.debitorRel:ADMIN[[debitor.debitorRel:ADMIN]]
+        role:debitor.debitorRel:AGENT[[debitor.debitorRel:AGENT]]
+        role:debitor.debitorRel:TENANT[[debitor.debitorRel:TENANT]]
+    end
+end
+
+subgraph debitor.partnerRel["`**debitor.partnerRel**`"]
+    direction TB
+    style debitor.partnerRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel:roles[ ]
+        style debitor.partnerRel:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel:OWNER[[debitor.partnerRel:OWNER]]
+        role:debitor.partnerRel:ADMIN[[debitor.partnerRel:ADMIN]]
+        role:debitor.partnerRel:AGENT[[debitor.partnerRel:AGENT]]
+        role:debitor.partnerRel:TENANT[[debitor.partnerRel:TENANT]]
+    end
+end
+
+subgraph bookingItem["`**bookingItem**`"]
+    direction TB
+    style bookingItem fill:#dd4901,stroke:#274d6e,stroke-width:8px
+
+    subgraph bookingItem:roles[ ]
+        style bookingItem:roles fill:#dd4901,stroke:white
+
+        role:bookingItem:OWNER[[bookingItem:OWNER]]
+        role:bookingItem:ADMIN[[bookingItem:ADMIN]]
+        role:bookingItem:TENANT[[bookingItem:TENANT]]
+    end
+
+    subgraph bookingItem:permissions[ ]
+        style bookingItem:permissions fill:#dd4901,stroke:white
+
+        perm:bookingItem:INSERT{{bookingItem:INSERT}}
+        perm:bookingItem:DELETE{{bookingItem:DELETE}}
+        perm:bookingItem:UPDATE{{bookingItem:UPDATE}}
+        perm:bookingItem:SELECT{{bookingItem:SELECT}}
+    end
+end
+
+subgraph debitor.partnerRel.contact["`**debitor.partnerRel.contact**`"]
+    direction TB
+    style debitor.partnerRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.contact:roles[ ]
+        style debitor.partnerRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.contact:OWNER[[debitor.partnerRel.contact:OWNER]]
+        role:debitor.partnerRel.contact:ADMIN[[debitor.partnerRel.contact:ADMIN]]
+        role:debitor.partnerRel.contact:REFERRER[[debitor.partnerRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitor.partnerRel.holderPerson["`**debitor.partnerRel.holderPerson**`"]
+    direction TB
+    style debitor.partnerRel.holderPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.holderPerson:roles[ ]
+        style debitor.partnerRel.holderPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.holderPerson:OWNER[[debitor.partnerRel.holderPerson:OWNER]]
+        role:debitor.partnerRel.holderPerson:ADMIN[[debitor.partnerRel.holderPerson:ADMIN]]
+        role:debitor.partnerRel.holderPerson:REFERRER[[debitor.partnerRel.holderPerson:REFERRER]]
+    end
+end
+
+subgraph debitor["`**debitor**`"]
+    direction TB
+    style debitor fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+end
+
+subgraph debitor.refundBankAccount["`**debitor.refundBankAccount**`"]
+    direction TB
+    style debitor.refundBankAccount fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.refundBankAccount:roles[ ]
+        style debitor.refundBankAccount:roles fill:#99bcdb,stroke:white
+
+        role:debitor.refundBankAccount:OWNER[[debitor.refundBankAccount:OWNER]]
+        role:debitor.refundBankAccount:ADMIN[[debitor.refundBankAccount:ADMIN]]
+        role:debitor.refundBankAccount:REFERRER[[debitor.refundBankAccount:REFERRER]]
+    end
+end
+
+subgraph debitor.partnerRel.anchorPerson["`**debitor.partnerRel.anchorPerson**`"]
+    direction TB
+    style debitor.partnerRel.anchorPerson fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.partnerRel.anchorPerson:roles[ ]
+        style debitor.partnerRel.anchorPerson:roles fill:#99bcdb,stroke:white
+
+        role:debitor.partnerRel.anchorPerson:OWNER[[debitor.partnerRel.anchorPerson:OWNER]]
+        role:debitor.partnerRel.anchorPerson:ADMIN[[debitor.partnerRel.anchorPerson:ADMIN]]
+        role:debitor.partnerRel.anchorPerson:REFERRER[[debitor.partnerRel.anchorPerson:REFERRER]]
+    end
+end
+
+subgraph debitorRel.contact["`**debitorRel.contact**`"]
+    direction TB
+    style debitorRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel.contact:roles[ ]
+        style debitorRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel.contact:OWNER[[debitorRel.contact:OWNER]]
+        role:debitorRel.contact:ADMIN[[debitorRel.contact:ADMIN]]
+        role:debitorRel.contact:REFERRER[[debitorRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitor.debitorRel.contact["`**debitor.debitorRel.contact**`"]
+    direction TB
+    style debitor.debitorRel.contact fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitor.debitorRel.contact:roles[ ]
+        style debitor.debitorRel.contact:roles fill:#99bcdb,stroke:white
+
+        role:debitor.debitorRel.contact:OWNER[[debitor.debitorRel.contact:OWNER]]
+        role:debitor.debitorRel.contact:ADMIN[[debitor.debitorRel.contact:ADMIN]]
+        role:debitor.debitorRel.contact:REFERRER[[debitor.debitorRel.contact:REFERRER]]
+    end
+end
+
+subgraph debitorRel["`**debitorRel**`"]
+    direction TB
+    style debitorRel fill:#99bcdb,stroke:#274d6e,stroke-width:8px
+
+    subgraph debitorRel:roles[ ]
+        style debitorRel:roles fill:#99bcdb,stroke:white
+
+        role:debitorRel:OWNER[[debitorRel:OWNER]]
+        role:debitorRel:ADMIN[[debitorRel:ADMIN]]
+        role:debitorRel:AGENT[[debitorRel:AGENT]]
+        role:debitorRel:TENANT[[debitorRel:TENANT]]
+    end
+end
+
+%% granting roles to roles
+role:global:ADMIN -.-> role:debitor.debitorRel.anchorPerson:OWNER
+role:debitor.debitorRel.anchorPerson:OWNER -.-> role:debitor.debitorRel.anchorPerson:ADMIN
+role:debitor.debitorRel.anchorPerson:ADMIN -.-> role:debitor.debitorRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel.holderPerson:OWNER
+role:debitor.debitorRel.holderPerson:OWNER -.-> role:debitor.debitorRel.holderPerson:ADMIN
+role:debitor.debitorRel.holderPerson:ADMIN -.-> role:debitor.debitorRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel.contact:OWNER
+role:debitor.debitorRel.contact:OWNER -.-> role:debitor.debitorRel.contact:ADMIN
+role:debitor.debitorRel.contact:ADMIN -.-> role:debitor.debitorRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitor.debitorRel:OWNER
+role:debitor.debitorRel:OWNER -.-> role:debitor.debitorRel:ADMIN
+role:debitor.debitorRel:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.debitorRel:TENANT
+role:debitor.debitorRel.contact:ADMIN -.-> role:debitor.debitorRel:TENANT
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.anchorPerson:REFERRER
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.holderPerson:REFERRER
+role:debitor.debitorRel:TENANT -.-> role:debitor.debitorRel.contact:REFERRER
+role:debitor.debitorRel.anchorPerson:ADMIN -.-> role:debitor.debitorRel:OWNER
+role:debitor.debitorRel.holderPerson:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:global:ADMIN -.-> role:debitor.refundBankAccount:OWNER
+role:debitor.refundBankAccount:OWNER -.-> role:debitor.refundBankAccount:ADMIN
+role:debitor.refundBankAccount:ADMIN -.-> role:debitor.refundBankAccount:REFERRER
+role:debitor.refundBankAccount:ADMIN -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.refundBankAccount:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.anchorPerson:OWNER
+role:debitor.partnerRel.anchorPerson:OWNER -.-> role:debitor.partnerRel.anchorPerson:ADMIN
+role:debitor.partnerRel.anchorPerson:ADMIN -.-> role:debitor.partnerRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.holderPerson:OWNER
+role:debitor.partnerRel.holderPerson:OWNER -.-> role:debitor.partnerRel.holderPerson:ADMIN
+role:debitor.partnerRel.holderPerson:ADMIN -.-> role:debitor.partnerRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel.contact:OWNER
+role:debitor.partnerRel.contact:OWNER -.-> role:debitor.partnerRel.contact:ADMIN
+role:debitor.partnerRel.contact:ADMIN -.-> role:debitor.partnerRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitor.partnerRel:OWNER
+role:debitor.partnerRel:OWNER -.-> role:debitor.partnerRel:ADMIN
+role:debitor.partnerRel:ADMIN -.-> role:debitor.partnerRel:AGENT
+role:debitor.partnerRel:AGENT -.-> role:debitor.partnerRel:TENANT
+role:debitor.partnerRel.contact:ADMIN -.-> role:debitor.partnerRel:TENANT
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.anchorPerson:REFERRER
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.holderPerson:REFERRER
+role:debitor.partnerRel:TENANT -.-> role:debitor.partnerRel.contact:REFERRER
+role:debitor.partnerRel.anchorPerson:ADMIN -.-> role:debitor.partnerRel:OWNER
+role:debitor.partnerRel.holderPerson:ADMIN -.-> role:debitor.partnerRel:AGENT
+role:debitor.partnerRel:ADMIN -.-> role:debitor.debitorRel:ADMIN
+role:debitor.partnerRel:AGENT -.-> role:debitor.debitorRel:AGENT
+role:debitor.debitorRel:AGENT -.-> role:debitor.partnerRel:TENANT
+role:global:ADMIN -.-> role:debitorRel.anchorPerson:OWNER
+role:debitorRel.anchorPerson:OWNER -.-> role:debitorRel.anchorPerson:ADMIN
+role:debitorRel.anchorPerson:ADMIN -.-> role:debitorRel.anchorPerson:REFERRER
+role:global:ADMIN -.-> role:debitorRel.holderPerson:OWNER
+role:debitorRel.holderPerson:OWNER -.-> role:debitorRel.holderPerson:ADMIN
+role:debitorRel.holderPerson:ADMIN -.-> role:debitorRel.holderPerson:REFERRER
+role:global:ADMIN -.-> role:debitorRel.contact:OWNER
+role:debitorRel.contact:OWNER -.-> role:debitorRel.contact:ADMIN
+role:debitorRel.contact:ADMIN -.-> role:debitorRel.contact:REFERRER
+role:global:ADMIN -.-> role:debitorRel:OWNER
+role:debitorRel:OWNER -.-> role:debitorRel:ADMIN
+role:debitorRel:ADMIN -.-> role:debitorRel:AGENT
+role:debitorRel:AGENT -.-> role:debitorRel:TENANT
+role:debitorRel.contact:ADMIN -.-> role:debitorRel:TENANT
+role:debitorRel:TENANT -.-> role:debitorRel.anchorPerson:REFERRER
+role:debitorRel:TENANT -.-> role:debitorRel.holderPerson:REFERRER
+role:debitorRel:TENANT -.-> role:debitorRel.contact:REFERRER
+role:debitorRel.anchorPerson:ADMIN -.-> role:debitorRel:OWNER
+role:debitorRel.holderPerson:ADMIN -.-> role:debitorRel:AGENT
+role:debitorRel:AGENT ==> role:bookingItem:OWNER
+role:bookingItem:OWNER ==> role:bookingItem:ADMIN
+role:bookingItem:ADMIN ==> role:bookingItem:TENANT
+role:bookingItem:TENANT ==> role:debitorRel:TENANT
+
+%% granting permissions to roles
+role:debitorRel:ADMIN ==> perm:bookingItem:INSERT
+role:global:ADMIN ==> perm:bookingItem:DELETE
+role:bookingItem:OWNER ==> perm:bookingItem:UPDATE
+role:bookingItem:TENANT ==> perm:bookingItem:SELECT
+
+```

src/main/resources/db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.sql

@@ -0,0 +1,199 @@
+--liquibase formatted sql
+-- This code generated was by RbacViewPostgresGenerator, do not amend manually.
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-OBJECT:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRelatedRbacObject('hs_booking_item');
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-ROLE-DESCRIPTORS:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRbacRoleDescriptors('hsBookingItem', 'hs_booking_item');
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-insert-trigger:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates the roles, grants and permission for the AFTER INSERT TRIGGER.
+ */
+
+create or replace procedure buildRbacSystemForHsBookingItem(
+    NEW hs_booking_item
+)
+    language plpgsql as $$
+
+declare
+    newDebitor hs_office_debitor;
+    newDebitorRel hs_office_relation;
+
+begin
+    call enterTriggerForObjectUuid(NEW.uuid);
+
+    SELECT * FROM hs_office_debitor WHERE uuid = NEW.debitorUuid    INTO newDebitor;
+    assert newDebitor.uuid is not null, format('newDebitor must not be null for NEW.debitorUuid = %s', NEW.debitorUuid);
+
+    SELECT debitorRel.*
+        FROM hs_office_relation debitorRel
+        JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+        WHERE debitor.uuid = NEW.debitorUuid
+        INTO newDebitorRel;
+    assert newDebitorRel.uuid is not null, format('newDebitorRel must not be null for NEW.debitorUuid = %s', NEW.debitorUuid);
+
+
+    perform createRoleWithGrants(
+        hsBookingItemOWNER(NEW),
+            permissions => array['UPDATE'],
+            incomingSuperRoles => array[hsOfficeRelationAGENT(newDebitorRel)]
+    );
+
+    perform createRoleWithGrants(
+        hsBookingItemADMIN(NEW),
+            incomingSuperRoles => array[hsBookingItemOWNER(NEW)]
+    );
+
+    perform createRoleWithGrants(
+        hsBookingItemTENANT(NEW),
+            permissions => array['SELECT'],
+            incomingSuperRoles => array[hsBookingItemADMIN(NEW)],
+            outgoingSubRoles => array[hsOfficeRelationTENANT(newDebitorRel)]
+    );
+
+    call grantPermissionToRole(createPermission(NEW.uuid, 'DELETE'), globalAdmin());
+
+    call leaveTriggerForObjectUuid(NEW.uuid);
+end; $$;
+
+/*
+    AFTER INSERT TRIGGER to create the role+grant structure for a new hs_booking_item row.
+ */
+
+create or replace function insertTriggerForHsBookingItem_tf()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    call buildRbacSystemForHsBookingItem(NEW);
+    return NEW;
+end; $$;
+
+create trigger insertTriggerForHsBookingItem_tg
+    after insert on hs_booking_item
+    for each row
+execute procedure insertTriggerForHsBookingItem_tf();
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-INSERT:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates INSERT INTO hs_booking_item permissions for the related hs_office_relation rows.
+ */
+do language plpgsql $$
+    declare
+        row hs_office_relation;
+    begin
+        call defineContext('create INSERT INTO hs_booking_item permissions for the related hs_office_relation rows');
+
+        FOR row IN SELECT * FROM hs_office_relation
+                WHERE type in ('DEBITOR') -- TODO.rbac: currently manually patched, needs to be generated
+            LOOP
+                call grantPermissionToRole(
+                    createPermission(row.uuid, 'INSERT', 'hs_booking_item'),
+                    hsOfficeRelationADMIN(row));
+            END LOOP;
+    END;
+$$;
+
+/**
+    Adds hs_booking_item INSERT permission to specified role of new hs_office_relation rows.
+*/
+create or replace function hs_booking_item_hs_office_relation_insert_tf()
+    returns trigger
+    language plpgsql
+    strict as $$
+begin
+    if NEW.type = 'DEBITOR' then -- TODO.rbac: currently manually patched, needs to be generated
+        call grantPermissionToRole(
+            createPermission(NEW.uuid, 'INSERT', 'hs_booking_item'),
+            hsOfficeRelationADMIN(NEW));
+    end if;
+    return NEW;
+end; $$;
+
+-- z_... is to put it at the end of after insert triggers, to make sure the roles exist
+create trigger z_hs_booking_item_hs_office_relation_insert_tg
+    after insert on hs_office_relation
+    for each row
+execute procedure hs_booking_item_hs_office_relation_insert_tf();
+
+/**
+    Checks if the user or assumed roles are allowed to insert a row to hs_booking_item,
+    where the check is performed by an indirect role.
+
+    An indirect role is a role which depends on an object uuid which is not a direct foreign key
+    of the source entity, but needs to be fetched via joined tables.
+*/
+create or replace function hs_booking_item_insert_permission_check_tf()
+    returns trigger
+    language plpgsql as $$
+
+declare
+    superRoleObjectUuid uuid;
+
+begin
+        superRoleObjectUuid := (SELECT debitorRel.uuid
+            FROM hs_office_relation debitorRel
+            JOIN hs_office_debitor debitor ON debitor.debitorRelUuid = debitorRel.uuid
+            WHERE debitor.uuid = NEW.debitorUuid
+        );
+        assert superRoleObjectUuid is not null, 'superRoleObjectUuid must not be null';
+
+        if ( not hasInsertPermission(superRoleObjectUuid, 'INSERT', 'hs_booking_item') ) then
+            raise exception
+                '[403] insert into hs_booking_item not allowed for current subjects % (%)',
+                currentSubjects(), currentSubjectsUuids();
+    end if;
+    return NEW;
+end; $$;
+
+create trigger hs_booking_item_insert_permission_check_tg
+    before insert on hs_booking_item
+    for each row
+        execute procedure hs_booking_item_insert_permission_check_tf();
+--//
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-IDENTITY-VIEW:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+    call generateRbacIdentityViewFromQuery('hs_booking_item',
+        $idName$
+            SELECT i.uuid as uuid, d.idName || ':' || i.caption as idName
+            FROM hs_booking_item i
+            JOIN hs_office_debitor_iv d ON d.uuid = i.debitorUuid
+        $idName$);
+--//
+
+-- ============================================================================
+--changeset hs-booking-item-rbac-RESTRICTED-VIEW:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+call generateRbacRestrictedView('hs_booking_item',
+    $orderBy$
+        validity
+    $orderBy$,
+    $updates$
+        version = new.version,
+        validity = new.validity,
+        resources = new.resources
+    $updates$);
+--//
+

src/main/resources/db/changelog/6-hs-booking/601-booking-item/6018-hs-booking-item-test-data.sql

@@ -0,0 +1,52 @@
+--liquibase formatted sql
+
+
+-- ============================================================================
+--changeset hs-booking-item-TEST-DATA-GENERATOR:1 endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+/*
+    Creates a single hs_booking_item test record.
+ */
+create or replace procedure createHsBookingItemTransactionTestData(
+    givenPartnerNumber numeric,
+    givenDebitorSuffix char(2)
+    )
+    language plpgsql as $$
+declare
+    currentTask         varchar;
+    relatedDebitor      hs_office_debitor;
+begin
+    currentTask := 'creating booking-item test-data ' || givenPartnerNumber::text || givenDebitorSuffix;
+    call defineContext(currentTask, null, 'superuser-alex@hostsharing.net', 'global#global:ADMIN');
+    execute format('set local hsadminng.currentTask to %L', currentTask);
+
+    select debitor.* into relatedDebitor
+                     from hs_office_debitor debitor
+                              join hs_office_relation debitorRel on debitorRel.uuid = debitor.debitorRelUuid
+                              join hs_office_relation partnerRel on partnerRel.holderUuid = debitorRel.anchorUuid
+                              join hs_office_partner partner on partner.partnerRelUuid = partnerRel.uuid
+                     where partner.partnerNumber = givenPartnerNumber and debitor.debitorNumberSuffix = givenDebitorSuffix;
+
+    raise notice 'creating test booking-item: %', givenPartnerNumber::text || givenDebitorSuffix::text;
+    raise notice '- using debitor (%): %', relatedDebitor.uuid, relatedDebitor;
+    insert
+        into hs_booking_item (uuid, debitoruuid, caption, validity, resources)
+        values (uuid_generate_v4(), relatedDebitor.uuid, 'some ManagedServer', daterange('20221001', null, '[]'), '{ "CPU": 2, "SDD": 512, "extra": 42 }'::jsonb),
+               (uuid_generate_v4(), relatedDebitor.uuid, 'some CloudServer', daterange('20230115', '20240415', '[)'), '{ "CPU": 2, "HDD": 1024, "extra": 42 }'::jsonb),
+               (uuid_generate_v4(), relatedDebitor.uuid, 'some Whatever', daterange('20240401', null, '[]'), '{ "CPU": 1, "SDD": 512, "HDD": 2048, "extra": 42 }'::jsonb);
+end; $$;
+--//
+
+
+-- ============================================================================
+--changeset hs-booking-item-TEST-DATA-GENERATION:1 –context=dev,tc endDelimiter:--//
+-- ----------------------------------------------------------------------------
+
+do language plpgsql $$
+    begin
+        call createHsBookingItemTransactionTestData(10001, '11');
+        call createHsBookingItemTransactionTestData(10002, '12');
+        call createHsBookingItemTransactionTestData(10003, '13');
+    end;
+$$;

src/main/resources/db/changelog/db.changelog-master.yaml

@@ -127,3 +127,9 @@ databaseChangeLog:
         file: db/changelog/5-hs-office/512-coopassets/5126-hs-office-coopassets-migration.sql
     - include:
         file: db/changelog/5-hs-office/512-coopassets/5128-hs-office-coopassets-test-data.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6010-hs-booking-item.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6013-hs-booking-item-rbac.sql
+    - include:
+        file: db/changelog/6-hs-booking/601-booking-item/6018-hs-booking-item-test-data.sql

src/test/java/net/hostsharing/hsadminng/arch/ArchitectureTest.java

@@ -50,6 +50,7 @@ public class ArchitectureTest {
                     "..hs.office.person",
                     "..hs.office.relation",
                     "..hs.office.sepamandate",
+                    "..hs.booking.item",
                     "..errors",
                     "..mapper",
                     "..ping",
@@ -123,11 +124,22 @@ public class ArchitectureTest {
 
     @ArchTest
     @SuppressWarnings("unused")
-    public static final ArchRule hsAdminPackagesRule = classes()
+    public static final ArchRule hsOfficePackageAccessRule = classes()
             .that().resideInAPackage("..hs.office.(*)..")
             .should().onlyBeAccessed().byClassesThat()
             .resideInAnyPackage(
                     "..hs.office.(*)..",
+                    "..hs.booking.(*)..",
+                    "..rbac.rbacgrant" // TODO.test: just because of RbacGrantsDiagramServiceIntegrationTest
+            );
+
+    @ArchTest
+    @SuppressWarnings("unused")
+    public static final ArchRule hsBookingPackageAccessRule = classes()
+            .that().resideInAPackage("..hs.booking.(*)..")
+            .should().onlyBeAccessed().byClassesThat()
+            .resideInAnyPackage(
+                    "..hs.booking.(*)..",
                     "..rbac.rbacgrant" // TODO.test: just because of RbacGrantsDiagramServiceIntegrationTest
             );
 

src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemControllerAcceptanceTest.java

@@ -0,0 +1,340 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import io.restassured.RestAssured;
+import io.restassured.http.ContentType;
+import net.hostsharing.hsadminng.HsadminNgApplication;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorRepository;
+import net.hostsharing.hsadminng.rbac.test.ContextBasedTestWithCleanup;
+import net.hostsharing.hsadminng.rbac.test.JpaAttempt;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+import org.springframework.boot.test.web.server.LocalServerPort;
+import org.springframework.transaction.annotation.Transactional;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import java.time.LocalDate;
+import java.util.Map;
+import java.util.UUID;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.rbac.test.JsonMatcher.lenientlyEquals;
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.hamcrest.Matchers.matchesRegex;
+
+@SpringBootTest(
+        webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT,
+        classes = { HsadminNgApplication.class, JpaAttempt.class }
+)
+@Transactional
+class HsBookingItemControllerAcceptanceTest extends ContextBasedTestWithCleanup {
+
+    @LocalServerPort
+    private Integer port;
+
+    @Autowired
+    HsBookingItemRepository bookingItemRepo;
+
+    @Autowired
+    HsOfficeDebitorRepository debitorRepo;
+
+    @Autowired
+    JpaAttempt jpaAttempt;
+
+    @PersistenceContext
+    EntityManager em;
+
+    @Nested
+    class ListBookingItems {
+
+        @Test
+        void globalAdmin_canViewAllBookingItemsOfArbitraryDebitor() {
+
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(1000111).get(0);
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items?debitorUuid=" + givenDebitor.getUuid())
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .body("", lenientlyEquals("""
+                    [
+                        {
+                             "caption": "some ManagedServer",
+                             "validFrom": "2022-10-01",
+                             "validTo": null,
+                             "resources": {
+                                 "CPU": 2,
+                                 "SDD": 512,
+                                 "extra": 42
+                             }
+                         },
+                         {
+                             "caption": "some CloudServer",
+                             "validFrom": "2023-01-15",
+                             "validTo": "2024-04-14",
+                             "resources": {
+                                 "CPU": 2,
+                                 "HDD": 1024,
+                                 "extra": 42
+                             }
+                         },
+                         {
+                             "caption": "some Whatever",
+                             "validFrom": "2024-04-01",
+                             "validTo": null,
+                             "resources": {
+                                 "CPU": 1,
+                                 "HDD": 2048,
+                                 "SDD": 512,
+                                 "extra": 42
+                             }
+                         }
+                     ]
+                    """));
+                // @formatter:on
+        }
+    }
+
+    @Nested
+    class AddBookingItem {
+
+        @Test
+        void globalAdmin_canAddBookingItem() {
+
+            context.define("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(1000111).get(0);
+
+            final var location = RestAssured // @formatter:off
+                    .given()
+                        .header("current-user", "superuser-alex@hostsharing.net")
+                        .contentType(ContentType.JSON)
+                        .body("""
+                            {
+                                "debitorUuid": "%s",
+                                "caption": "some new booking",
+                                "resources": { "CPU": 12, "extra": 42 },
+                                "validFrom": "2022-10-13"
+                            }
+                            """.formatted(givenDebitor.getUuid()))
+                        .port(port)
+                    .when()
+                        .post("http://localhost/api/hs/booking/items")
+                    .then().log().all().assertThat()
+                        .statusCode(201)
+                        .contentType(ContentType.JSON)
+                        .body("", lenientlyEquals("""
+                            {
+                                "caption": "some new booking",
+                                "validFrom": "2022-10-13",
+                                "validTo": null,
+                                "resources": { "CPU": 12 }
+                             }
+                            """))
+                        .header("Location", matchesRegex("http://localhost:[1-9][0-9]*/api/hs/booking/items/[^/]*"))
+                    .extract().header("Location");  // @formatter:on
+
+            // finally, the new bookingItem can be accessed under the generated UUID
+            final var newUserUuid = UUID.fromString(
+                    location.substring(location.lastIndexOf('/') + 1));
+            assertThat(newUserUuid).isNotNull();
+        }
+    }
+
+    @Nested
+    class GetBookingItem {
+
+        @Test
+        void globalAdmin_canGetArbitraryBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                            .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000111)
+                            .filter(item -> item.getCaption().equals("some CloudServer"))
+                            .findAny().orElseThrow().getUuid();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .body("", lenientlyEquals("""
+                        {
+                            "caption": "some CloudServer",
+                            "validFrom": "2023-01-15",
+                            "validTo": "2024-04-14",
+                            "resources": { CPU: 2, HDD: 1024 }
+                        }
+                    """)); // @formatter:on
+        }
+
+        @Test
+        void normalUser_canNotGetUnrelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                    .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000212)
+                    .map(HsBookingItemEntity::getUuid)
+                    .findAny().orElseThrow();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "selfregistered-user-drew@hostsharing.org")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().body().assertThat()
+                    .statusCode(404); // @formatter:on
+        }
+
+        @Test
+        void debitorAgentUser_canGetRelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItemUuid = bookingItemRepo.findAll().stream()
+                    .filter(bi -> bi.getDebitor().getDebitorNumber() == 1000313)
+                    .filter(item -> item.getCaption().equals("some CloudServer"))
+                    .findAny().orElseThrow().getUuid();
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "person-TuckerJack@example.com")
+                    .port(port)
+                .when()
+                    .get("http://localhost/api/hs/booking/items/" + givenBookingItemUuid)
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType("application/json")
+                    .body("", lenientlyEquals("""
+                        {
+                            "caption": "some CloudServer",
+                            "validFrom": "2023-01-15",
+                            "validTo": "2024-04-14",
+                            "resources": { CPU: 2, HDD: 1024 }
+                        }
+                    """)); // @formatter:on
+        }
+    }
+
+    @Nested
+    class PatchBookingItem {
+
+        @Test
+        void globalAdmin_canPatchAllUpdatablePropertiesOfBookingItem() {
+
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111, entry("something", 1));
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .contentType(ContentType.JSON)
+                    .body("""
+                        {
+                            "validFrom": "2020-06-05",
+                            "validTo": "2022-12-31",
+                            "resources": {
+                                "CPU": "4",
+                                "HDD": null,
+                                "SSD": "4096"
+                            }
+                        }
+                        """)
+                    .port(port)
+                .when()
+                    .patch("http://localhost/api/hs/booking/items/" + givenBookingItem.getUuid())
+                .then().log().all().assertThat()
+                    .statusCode(200)
+                    .contentType(ContentType.JSON)
+                    .body("", lenientlyEquals("""
+                        {
+                            "caption": "some test-booking",
+                            "validFrom": "2022-11-01",
+                            "validTo": "2022-12-31",
+                            "resources": {
+                                "CPU": "4",
+                                "SSD": "4096",
+                                "something": 1
+                            }
+                         }
+                    """)); // @formatter:on
+
+            // finally, the bookingItem is actually updated
+            context.define("superuser-alex@hostsharing.net");
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent().get()
+                    .matches(mandate -> {
+                        assertThat(mandate.getDebitor().toString()).isEqualTo("debitor(D-1000111: rel(anchor='LP First GmbH', type='DEBITOR', holder='LP First GmbH'), fir)");
+                        assertThat(mandate.getValidFrom()).isEqualTo("2020-06-05");
+                        assertThat(mandate.getValidTo()).isEqualTo("2022-12-31");
+                        return true;
+                    });
+        }
+    }
+
+    @Nested
+    class DeleteBookingItem {
+
+        @Test
+        void globalAdmin_canDeleteArbitraryBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111, entry("something", 1));
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "superuser-alex@hostsharing.net")
+                    .port(port)
+                .when()
+                    .delete("http://localhost/api/hs/booking/items/" + givenBookingItem.getUuid())
+                .then().log().body().assertThat()
+                    .statusCode(204); // @formatter:on
+
+            // then the given bookingItem is gone
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isEmpty();
+        }
+
+        @Test
+        void normalUser_canNotDeleteUnrelatedBookingItem() {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenBookingItem = givenSomeTemporaryBookingItemForDebitorNumber(1000111, entry("something", 1));
+
+            RestAssured // @formatter:off
+                .given()
+                    .header("current-user", "selfregistered-user-drew@hostsharing.org")
+                    .port(port)
+                .when()
+                    .delete("http://localhost/api/hs/booking/items/" + givenBookingItem.getUuid())
+                .then().log().body().assertThat()
+                    .statusCode(404); // @formatter:on
+
+            // then the given bookingItem is still there
+            assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isNotEmpty();
+        }
+    }
+
+    private HsBookingItemEntity givenSomeTemporaryBookingItemForDebitorNumber(final int debitorNumber,
+            final Map.Entry<String, Integer> resources) {
+        return jpaAttempt.transacted(() -> {
+            context.define("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
+            final var newBookingItem = HsBookingItemEntity.builder()
+                    .uuid(UUID.randomUUID())
+                    .debitor(givenDebitor)
+                    .caption("some test-booking")
+                    .resources(Map.ofEntries(resources))
+                    .validity(Range.closedOpen(
+                            LocalDate.parse("2022-11-01"), LocalDate.parse("2023-03-31")))
+                    .build();
+
+            return bookingItemRepo.save(newBookingItem);
+        }).assertSuccessful().returnedValue();
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityPatcherUnitTest.java

@@ -0,0 +1,112 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import net.hostsharing.hsadminng.hs.booking.generated.api.v1.model.HsBookingItemPatchResource;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorEntity;
+import net.hostsharing.hsadminng.mapper.KeyValueMap;
+import net.hostsharing.hsadminng.rbac.test.PatchUnitTestBase;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.TestInstance;
+import org.junit.jupiter.api.extension.ExtendWith;
+import org.mockito.Mock;
+import org.mockito.junit.jupiter.MockitoExtension;
+
+import jakarta.persistence.EntityManager;
+import java.time.LocalDate;
+import java.util.Map;
+import java.util.UUID;
+import java.util.stream.Stream;
+
+import static net.hostsharing.hsadminng.hs.office.debitor.TestHsOfficeDebitor.TEST_DEBITOR;
+import static net.hostsharing.hsadminng.mapper.PatchMap.entry;
+import static net.hostsharing.hsadminng.mapper.PatchMap.patchMap;
+import static org.junit.jupiter.api.TestInstance.Lifecycle.PER_CLASS;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.lenient;
+
+@TestInstance(PER_CLASS)
+@ExtendWith(MockitoExtension.class)
+class HsBookingItemEntityPatcherUnitTest extends PatchUnitTestBase<
+        HsBookingItemPatchResource,
+        HsBookingItemEntity
+        > {
+
+    private static final UUID INITIAL_BOOKING_ITEM_UUID = UUID.randomUUID();
+    private static final LocalDate GIVEN_VALID_FROM = LocalDate.parse("2020-04-15");
+    private static final LocalDate PATCHED_VALID_TO = LocalDate.parse("2022-12-31");
+
+    private static final Map<String, Object> INITIAL_RESOURCES = patchMap(
+            entry("CPU", 1),
+            entry("HDD", 1024),
+            entry("MEM", 64)
+    );
+    private static final  Map<String, Object> PATCH_RESOURCES = patchMap(
+            entry("CPU", 2),
+            entry("HDD", null),
+            entry("SDD", 256)
+    );
+    private static final  Map<String, Object> PATCHED_RESOURCES = patchMap(
+            entry("CPU", 2),
+            entry("SDD", 256),
+            entry("MEM", 64)
+    );
+
+    private static final String INITIAL_CAPTION = "initial caption";
+    private static final String PATCHED_CAPTION = "patched caption";
+
+    @Mock
+    private EntityManager em;
+
+    @BeforeEach
+    void initMocks() {
+        lenient().when(em.getReference(eq(HsOfficeDebitorEntity.class), any())).thenAnswer(invocation ->
+                HsOfficeDebitorEntity.builder().uuid(invocation.getArgument(1)).build());
+        lenient().when(em.getReference(eq(HsBookingItemEntity.class), any())).thenAnswer(invocation ->
+                HsBookingItemEntity.builder().uuid(invocation.getArgument(1)).build());
+    }
+
+    @Override
+    protected HsBookingItemEntity newInitialEntity() {
+        final var entity = new HsBookingItemEntity();
+        entity.setUuid(INITIAL_BOOKING_ITEM_UUID);
+        entity.setDebitor(TEST_DEBITOR);
+        entity.getResources().putAll(KeyValueMap.from(INITIAL_RESOURCES));
+        entity.setCaption(INITIAL_CAPTION);
+        entity.setValidity(Range.closedInfinite(GIVEN_VALID_FROM));
+        return entity;
+    }
+
+    @Override
+    protected HsBookingItemPatchResource newPatchResource() {
+        return new HsBookingItemPatchResource();
+    }
+
+    @Override
+    protected HsBookingItemEntityPatcher createPatcher(final HsBookingItemEntity bookingItem) {
+        return new HsBookingItemEntityPatcher(bookingItem);
+    }
+
+    @Override
+    protected Stream<Property> propertyTestDescriptors() {
+        return Stream.of(
+                new JsonNullableProperty<>(
+                        "caption",
+                        HsBookingItemPatchResource::setCaption,
+                        PATCHED_CAPTION,
+                        HsBookingItemEntity::setCaption),
+                new SimpleProperty<>(
+                        "resources",
+                        HsBookingItemPatchResource::setResources,
+                        PATCH_RESOURCES,
+                        HsBookingItemEntity::putResources,
+                        PATCHED_RESOURCES)
+                        .notNullable(),
+                new JsonNullableProperty<>(
+                        "validto",
+                        HsBookingItemPatchResource::setValidTo,
+                        PATCHED_VALID_TO,
+                        HsBookingItemEntity::setValidTo)
+        );
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemEntityUnitTest.java

@@ -0,0 +1,56 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import org.junit.jupiter.api.Test;
+
+import java.time.LocalDate;
+import java.util.Map;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.hs.office.debitor.TestHsOfficeDebitor.TEST_DEBITOR;
+import static net.hostsharing.hsadminng.mapper.PostgresDateRange.toPostgresDateRange;
+import static org.assertj.core.api.Assertions.assertThat;
+
+class HsBookingItemEntityUnitTest {
+    public static final LocalDate GIVEN_VALID_FROM = LocalDate.parse("2020-01-01");
+    public static final LocalDate GIVEN_VALID_TO = LocalDate.parse("2030-12-31");
+
+    final HsBookingItemEntity givenBookingItem = HsBookingItemEntity.builder()
+            .debitor(TEST_DEBITOR)
+            .caption("some caption")
+            .resources(Map.ofEntries(
+                    entry("CPUs", 2),
+                    entry("SSD-storage", 512),
+                    entry("HDD-storage", 2048)))
+            .validity(toPostgresDateRange(GIVEN_VALID_FROM, GIVEN_VALID_TO))
+            .build();
+
+    @Test
+    void toStringContainsAllPropertiesAndResourcesSortedByKey() {
+        final var result = givenBookingItem.toString();
+
+        assertThat(result).isEqualTo("HsBookingItemEntity(D-1000100, [2020-01-01,2031-01-01), some caption, { CPUs: 2, HDD-storage: 2048, SSD-storage: 512 })");
+    }
+
+    @Test
+    void toShortStringContainsOnlyMemberNumberAndCaption() {
+        final var result = givenBookingItem.toShortString();
+
+        assertThat(result).isEqualTo("D-1000100:some caption");
+    }
+
+    @Test
+    void settingValidFromKeepsValidTo() {
+        givenBookingItem.setValidFrom(LocalDate.parse("2023-12-31"));
+        assertThat(givenBookingItem.getValidFrom()).isEqualTo(LocalDate.parse("2023-12-31"));
+        assertThat(givenBookingItem.getValidTo()).isEqualTo(GIVEN_VALID_TO);
+
+    }
+
+    @Test
+    void settingValidToKeepsValidFrom() {
+        givenBookingItem.setValidTo(LocalDate.parse("2024-12-31"));
+        assertThat(givenBookingItem.getValidFrom()).isEqualTo(GIVEN_VALID_FROM);
+        assertThat(givenBookingItem.getValidTo()).isEqualTo(LocalDate.parse("2024-12-31"));
+    }
+
+}

src/test/java/net/hostsharing/hsadminng/hs/booking/item/HsBookingItemRepositoryIntegrationTest.java

@@ -0,0 +1,337 @@
+package net.hostsharing.hsadminng.hs.booking.item;
+
+import io.hypersistence.utils.hibernate.type.range.Range;
+import net.hostsharing.hsadminng.context.Context;
+import net.hostsharing.hsadminng.hs.office.debitor.HsOfficeDebitorRepository;
+import net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantRepository;
+import net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleRepository;
+import net.hostsharing.hsadminng.rbac.test.Array;
+import net.hostsharing.hsadminng.rbac.test.ContextBasedTestWithCleanup;
+import net.hostsharing.hsadminng.rbac.test.JpaAttempt;
+import org.junit.jupiter.api.Nested;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
+import org.springframework.boot.test.mock.mockito.MockBean;
+import org.springframework.context.annotation.Import;
+import org.springframework.orm.jpa.JpaSystemException;
+
+import jakarta.persistence.EntityManager;
+import jakarta.persistence.PersistenceContext;
+import jakarta.servlet.http.HttpServletRequest;
+import java.time.LocalDate;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+
+import static java.util.Map.entry;
+import static net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantEntity.distinctGrantDisplaysOf;
+import static net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleEntity.distinctRoleNamesOf;
+import static net.hostsharing.hsadminng.rbac.test.Array.fromFormatted;
+import static net.hostsharing.hsadminng.rbac.test.JpaAttempt.attempt;
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DataJpaTest
+@Import({ Context.class, JpaAttempt.class })
+class HsBookingItemRepositoryIntegrationTest extends ContextBasedTestWithCleanup {
+
+    @Autowired
+    HsBookingItemRepository bookingItemRepo;
+
+    @Autowired
+    HsOfficeDebitorRepository debitorRepo;
+
+    @Autowired
+    RawRbacRoleRepository rawRoleRepo;
+
+    @Autowired
+    RawRbacGrantRepository rawGrantRepo;
+
+    @Autowired
+    JpaAttempt jpaAttempt;
+
+    @PersistenceContext
+    EntityManager em;
+
+    @MockBean
+    HttpServletRequest request;
+
+    @Nested
+    class CreateBookingItem {
+
+        @Test
+        public void testHostsharingAdmin_withoutAssumedRole_canCreateNewBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var count = bookingItemRepo.count();
+            final var givenDebitor = debitorRepo.findDebitorByOptionalNameLike("First").get(0);
+
+            // when
+            final var result = attempt(em, () -> {
+                final var newBookingItem = HsBookingItemEntity.builder()
+                        .debitor(givenDebitor)
+                        .caption("some new booking item")
+                        .validity(Range.closedOpen(
+                                LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                        .build();
+                return toCleanup(bookingItemRepo.save(newBookingItem));
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(result.returnedValue()).isNotNull().extracting(HsBookingItemEntity::getUuid).isNotNull();
+            assertThatBookingItemIsPersisted(result.returnedValue());
+            assertThat(bookingItemRepo.count()).isEqualTo(count + 1);
+        }
+
+        @Test
+        public void createsAndGrantsRoles() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var initialRoleNames = distinctRoleNamesOf(rawRoleRepo.findAll());
+            final var initialGrantNames = distinctGrantDisplaysOf(rawGrantRepo.findAll()).stream()
+                    .map(s -> s.replace("hs_office_", ""))
+                    .toList();
+
+            // when
+            attempt(em, () -> {
+                final var givenDebitor = debitorRepo.findDebitorByOptionalNameLike("First").get(0);
+                final var newBookingItem = HsBookingItemEntity.builder()
+                        .debitor(givenDebitor)
+                        .caption("some new booking item")
+                        .validity(Range.closedOpen(
+                                LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                        .build();
+                return toCleanup(bookingItemRepo.save(newBookingItem));
+            });
+
+            // then
+            final var all = rawRoleRepo.findAll();
+            assertThat(distinctRoleNamesOf(all)).containsExactlyInAnyOrder(Array.from(
+                    initialRoleNames,
+                    "hs_booking_item#D-1000111:some new booking item:ADMIN",
+                    "hs_booking_item#D-1000111:some new booking item:OWNER",
+                    "hs_booking_item#D-1000111:some new booking item:TENANT"));
+            assertThat(distinctGrantDisplaysOf(rawGrantRepo.findAll()))
+                    .map(s -> s.replace("hs_office_", ""))
+                    .containsExactlyInAnyOrder(fromFormatted(
+                            initialGrantNames,
+
+                            // insert+delete
+                            "{ grant perm:hs_booking_item#D-1000111:some new booking item:DELETE to role:global#global:ADMIN by system and assume }",
+
+                            // owner
+                            "{ grant perm:hs_booking_item#D-1000111:some new booking item:UPDATE to role:hs_booking_item#D-1000111:some new booking item:OWNER by system and assume }",
+                            "{ grant role:hs_booking_item#D-1000111:some new booking item:OWNER to role:relation#FirstGmbH-with-DEBITOR-FirstGmbH:AGENT by system and assume }",
+
+                            // admin
+                            "{ grant role:hs_booking_item#D-1000111:some new booking item:ADMIN to role:hs_booking_item#D-1000111:some new booking item:OWNER by system and assume }",
+
+                            // tenant
+                            "{ grant role:hs_booking_item#D-1000111:some new booking item:TENANT to role:hs_booking_item#D-1000111:some new booking item:ADMIN by system and assume }",
+                            "{ grant perm:hs_booking_item#D-1000111:some new booking item:SELECT to role:hs_booking_item#D-1000111:some new booking item:TENANT by system and assume }",
+                            "{ grant role:relation#FirstGmbH-with-DEBITOR-FirstGmbH:TENANT to role:hs_booking_item#D-1000111:some new booking item:TENANT by system and assume }",
+
+                            null));
+        }
+
+        private void assertThatBookingItemIsPersisted(final HsBookingItemEntity saved) {
+            final var found = bookingItemRepo.findByUuid(saved.getUuid());
+            assertThat(found).isNotEmpty().map(HsBookingItemEntity::toString).get().isEqualTo(saved.toString());
+        }
+    }
+
+    @Nested
+    class FindByDebitorUuid {
+
+        @Test
+        public void globalAdmin_withoutAssumedRole_canViewAllBookingItemsOfArbitraryDebitor() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var debitorUuid = debitorRepo.findDebitorByDebitorNumber(1000212).stream()
+                    .findAny().orElseThrow().getUuid();
+
+            // when
+            final var result = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+            // then
+            allTheseBookingItemsAreReturned(
+                    result,
+                    "HsBookingItemEntity(D-1000212, [2022-10-01,), some ManagedServer, { CPU: 2, SDD: 512, extra: 42 })",
+                    "HsBookingItemEntity(D-1000212, [2023-01-15,2024-04-15), some CloudServer, { CPU: 2, HDD: 1024, extra: 42 })",
+                    "HsBookingItemEntity(D-1000212, [2024-04-01,), some Whatever, { CPU: 1, HDD: 2048, SDD: 512, extra: 42 })");
+        }
+
+        @Test
+        public void normalUser_canViewOnlyRelatedBookingItems() {
+            // given:
+            context("person-FirbySusan@example.com");
+            final var debitorUuid = debitorRepo.findDebitorByDebitorNumber(1000111).stream().findAny().orElseThrow().getUuid();
+
+            // when:
+            final var result = bookingItemRepo.findAllByDebitorUuid(debitorUuid);
+
+            // then:
+            exactlyTheseBookingItemsAreReturned(
+                    result,
+                    "HsBookingItemEntity(D-1000111, [2022-10-01,), some ManagedServer, { CPU: 2, SDD: 512, extra: 42 })",
+                    "HsBookingItemEntity(D-1000111, [2023-01-15,2024-04-15), some CloudServer, { CPU: 2, HDD: 1024, extra: 42 })",
+                    "HsBookingItemEntity(D-1000111, [2024-04-01,), some Whatever, { CPU: 1, HDD: 2048, SDD: 512, extra: 42 })");
+        }
+    }
+
+    @Nested
+    class UpdateBookingItem {
+
+        @Test
+        public void hostsharingAdmin_canUpdateArbitraryBookingItem() {
+            // given
+            final var givenBookingItemUuid = givenSomeTemporaryBookingItem(1000111).getUuid();
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                final var foundBookingItem = em.find(HsBookingItemEntity.class, givenBookingItemUuid);
+                foundBookingItem.getResources().put("CPUs", 2);
+                foundBookingItem.getResources().remove("SSD-storage");
+                foundBookingItem.getResources().put("HSD-storage", 2048);
+                foundBookingItem.setValidity(Range.closedOpen(
+                        LocalDate.parse("2019-05-17"), LocalDate.parse("2023-01-01")));
+                return toCleanup(bookingItemRepo.save(foundBookingItem));
+            });
+
+            // then
+            result.assertSuccessful();
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                assertThatBookingItemActuallyInDatabase(result.returnedValue());
+            }).assertSuccessful();
+        }
+
+        private void assertThatBookingItemActuallyInDatabase(final HsBookingItemEntity saved) {
+            final var found = bookingItemRepo.findByUuid(saved.getUuid());
+            assertThat(found).isNotEmpty().get().isNotSameAs(saved)
+                    .extracting(Object::toString).isEqualTo(saved.toString());
+        }
+    }
+
+    @Nested
+    class DeleteByUuid {
+
+        @Test
+        public void globalAdmin_withoutAssumedRole_canDeleteAnyBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net", null);
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(jpaAttempt.transacted(() -> {
+                context("superuser-fran@hostsharing.net", null);
+                return bookingItemRepo.findByUuid(givenBookingItem.getUuid());
+            }).assertSuccessful().returnedValue()).isEmpty();
+        }
+
+        @Test
+        public void nonGlobalAdmin_canNotDeleteTheirRelatedBookingItem() {
+            // given
+            context("superuser-alex@hostsharing.net", null);
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("person-FirbySusan@example.com");
+                assertThat(bookingItemRepo.findByUuid(givenBookingItem.getUuid())).isPresent();
+
+                bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertExceptionWithRootCauseMessage(
+                    JpaSystemException.class,
+                    "[403] Subject ", " is not allowed to delete hs_booking_item");
+            assertThat(jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                return bookingItemRepo.findByUuid(givenBookingItem.getUuid());
+            }).assertSuccessful().returnedValue()).isPresent(); // still there
+        }
+
+        @Test
+        public void deletingABookingItemAlsoDeletesRelatedRolesAndGrants() {
+            // given
+            context("superuser-alex@hostsharing.net");
+            final var initialRoleNames = Array.from(distinctRoleNamesOf(rawRoleRepo.findAll()));
+            final var initialGrantNames = Array.from(distinctGrantDisplaysOf(rawGrantRepo.findAll()));
+            final var givenBookingItem = givenSomeTemporaryBookingItem(1000111);
+
+            // when
+            final var result = jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net");
+                return bookingItemRepo.deleteByUuid(givenBookingItem.getUuid());
+            });
+
+            // then
+            result.assertSuccessful();
+            assertThat(result.returnedValue()).isEqualTo(1);
+            assertThat(distinctRoleNamesOf(rawRoleRepo.findAll())).containsExactlyInAnyOrder(initialRoleNames);
+            assertThat(distinctGrantDisplaysOf(rawGrantRepo.findAll())).containsExactlyInAnyOrder(initialGrantNames);
+        }
+    }
+
+    @Test
+    public void auditJournalLogIsAvailable() {
+        // given
+        final var query = em.createNativeQuery("""
+                select currentTask, targetTable, targetOp
+                    from tx_journal_v
+                    where targettable = 'hs_booking_item';
+                    """);
+
+        // when
+        @SuppressWarnings("unchecked") final List<Object[]> customerLogEntries = query.getResultList();
+
+        // then
+        assertThat(customerLogEntries).map(Arrays::toString).contains(
+                "[creating booking-item test-data 1000111, hs_booking_item, INSERT]",
+                "[creating booking-item test-data 1000212, hs_booking_item, INSERT]",
+                "[creating booking-item test-data 1000313, hs_booking_item, INSERT]");
+    }
+
+    private HsBookingItemEntity givenSomeTemporaryBookingItem(final int debitorNumber) {
+        return jpaAttempt.transacted(() -> {
+            context("superuser-alex@hostsharing.net");
+            final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
+            final var newBookingItem = HsBookingItemEntity.builder()
+                    .debitor(givenDebitor)
+                    .caption("some temp booking item")
+                    .validity(Range.closedOpen(
+                            LocalDate.parse("2020-01-01"), LocalDate.parse("2023-01-01")))
+                    .resources(Map.ofEntries(
+                            entry("CPUs", 1),
+                            entry("SSD-storage", 256)))
+                    .build();
+
+            return toCleanup(bookingItemRepo.save(newBookingItem));
+        }).assertSuccessful().returnedValue();
+    }
+
+    void exactlyTheseBookingItemsAreReturned(
+            final List<HsBookingItemEntity> actualResult,
+            final String... bookingItemNames) {
+        assertThat(actualResult)
+                .extracting(bookingItemEntity -> bookingItemEntity.toString())
+                .containsExactlyInAnyOrder(bookingItemNames);
+    }
+
+    void allTheseBookingItemsAreReturned(final List<HsBookingItemEntity> actualResult, final String... bookingItemNames) {
+        assertThat(actualResult)
+                .extracting(bookingItemEntity -> bookingItemEntity.toString())
+                .contains(bookingItemNames);
+    }
+}

src/test/java/net/hostsharing/hsadminng/hs/office/coopshares/HsOfficeCoopSharesTransactionEntityUnitTest.java

@@ -1,10 +1,7 @@
 package net.hostsharing.hsadminng.hs.office.coopshares;
 
-import net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionEntity;
-import net.hostsharing.hsadminng.hs.office.coopassets.HsOfficeCoopAssetsTransactionType;
 import org.junit.jupiter.api.Test;
 
-import java.math.BigDecimal;
 import java.time.LocalDate;
 
 import static net.hostsharing.hsadminng.hs.office.membership.TestHsMembership.TEST_MEMBERSHIP;

src/test/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorRepositoryIntegrationTest.java

@@ -181,6 +181,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                 .containsExactlyInAnyOrder(Array.fromFormatted(
                     initialGrantNames,
                     "{ grant perm:relation#FirstGmbH-with-DEBITOR-FourtheG:INSERT>sepamandate to role:relation#FirstGmbH-with-DEBITOR-FourtheG:ADMIN by system and assume }",
+                    "{ grant perm:relation#FirstGmbH-with-DEBITOR-FourtheG:INSERT>hs_booking_item to role:relation#FirstGmbH-with-DEBITOR-FourtheG:ADMIN by system and assume }",
 
                     // owner
                     "{ grant perm:debitor#D-1000122:DELETE                          to role:relation#FirstGmbH-with-DEBITOR-FourtheG:OWNER by system and assume }",

src/test/java/net/hostsharing/hsadminng/hs/office/migration/ImportOfficeData.java

@@ -613,6 +613,7 @@ public class ImportOfficeData extends ContextBasedTest {
     private void deleteTestDataFromHsOfficeTables() {
         jpaAttempt.transacted(() -> {
             context(rbacSuperuser);
+            em.createNativeQuery("delete from hs_booking_item where true").executeUpdate();
             em.createNativeQuery("delete from hs_office_coopassetstransaction where true").executeUpdate();
             em.createNativeQuery("delete from hs_office_coopassetstransaction_legacy_id where true").executeUpdate();
             em.createNativeQuery("delete from hs_office_coopsharestransaction where true").executeUpdate();