introduce more lazy-loading references

doc/rbac-performance-analysis.md

@@ -245,3 +245,17 @@ The HashJoin strategy could be great if the hash-map could be kept for multiple
 
 
 
+### LAZY loading for Relation.anchorPerson/.holderPerson/
+
+The slowest query now was fetching Relations joined with Contact, Anchor-Person and Holder-Person, for all tables using the restricted (RBAC) views (_rv).
+
+We changed these mappings from `EAGER` (default) to `LAZY` to `@ManyToOne(fetch = FetchType.LAZY)` and got this result:
+
+| query | calls | total (min) | mean (ms) |
+|-------|-------|-------------|-----------|
+| select hore1_0.uuid,hore1_0.anchoruuid,hore1_0.contactuuid,hore1_0.holderuuid,hore1_0.mark,hore1_0.type,hore1_0.version from hs_office_relation_rv hore1_0 where hore1_0.uuid=$1 | 517 | 5 | 565 |
+| select hope1_0.uuid,hope1_0.familyname,hope1_0.givenname,hope1_0.persontype,hope1_0.salutation,hope1_0.title,hope1_0.tradename,hope1_0.version from hs_office_person_rv hope1_0 where hope1_0.uuid=$1 | 1015 | 4 | 240 |
+| select hoce1_0.uuid,hoce1_0.caption,hoce1_0.emailaddresses,hoce1_0.phonenumbers,hoce1_0.postaladdress,hoce1_0.version from hs_office_contact_rv hoce1_0 where hoce1_0.uuid=$1 | 497 | 2 | 235
+select * from isGranted(array[granteeId], grantedId) | 44613 | 1 | 1 |
+
+Now, finally, the total runtime of the import was down to 12 minutes.

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

@@ -70,7 +70,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class HsBookingItemEntity implements Stringifyable, RbacObject, PropertiesProvider {
+public class HsBookingItemEntity implements Stringifyable, RbacObject<HsBookingItemEntity>, PropertiesProvider {
 
     private static Stringify<HsBookingItemEntity> stringify = stringify(HsBookingItemEntity.class)
             .withProp(HsBookingItemEntity::getProject)

src/main/java/net/hostsharing/hsadminng/hs/booking/project/HsBookingProjectEntity.java

@@ -34,7 +34,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class HsBookingProjectEntity implements Stringifyable, RbacObject {
+public class HsBookingProjectEntity implements Stringifyable, RbacObject<HsBookingProjectEntity> {
 
     private static Stringify<HsBookingProjectEntity> stringify = stringify(HsBookingProjectEntity.class)
             .withProp(HsBookingProjectEntity::getDebitor)

src/main/java/net/hostsharing/hsadminng/hs/hosting/asset/HsHostingAssetEntity.java

@@ -70,7 +70,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class HsHostingAssetEntity implements Stringifyable, RbacObject, PropertiesProvider {
+public class HsHostingAssetEntity implements Stringifyable, RbacObject<HsHostingAssetEntity>, PropertiesProvider {
 
     private static Stringify<HsHostingAssetEntity> stringify = stringify(HsHostingAssetEntity.class)
             .withProp(HsHostingAssetEntity::getType)

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

@@ -27,7 +27,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @AllArgsConstructor
 @FieldNameConstants
 @DisplayName("BankAccount")
-public class HsOfficeBankAccountEntity implements RbacObject, Stringifyable {
+public class HsOfficeBankAccountEntity implements RbacObject<HsOfficeBankAccountEntity>, Stringifyable {
 
     private static Stringify<HsOfficeBankAccountEntity> toString = stringify(HsOfficeBankAccountEntity.class, "bankAccount")
             .withIdProp(HsOfficeBankAccountEntity::getIban)

src/main/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactEntity.java

@@ -35,7 +35,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @AllArgsConstructor
 @FieldNameConstants
 @DisplayName("Contact")
-public class HsOfficeContactEntity implements Stringifyable, RbacObject {
+public class HsOfficeContactEntity implements Stringifyable, RbacObject<HsOfficeContactEntity> {
 
     private static Stringify<HsOfficeContactEntity> toString = stringify(HsOfficeContactEntity.class, "contact")
             .withProp(Fields.caption, HsOfficeContactEntity::getCaption)

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

@@ -41,7 +41,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("CoopAssetsTransaction")
-public class HsOfficeCoopAssetsTransactionEntity implements Stringifyable, RbacObject {
+public class HsOfficeCoopAssetsTransactionEntity implements Stringifyable, RbacObject<HsOfficeCoopAssetsTransactionEntity> {
 
     private static Stringify<HsOfficeCoopAssetsTransactionEntity> stringify = stringify(HsOfficeCoopAssetsTransactionEntity.class)
             .withIdProp(HsOfficeCoopAssetsTransactionEntity::getTaggedMemberNumber)

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

@@ -39,7 +39,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("CoopShareTransaction")
-public class HsOfficeCoopSharesTransactionEntity implements Stringifyable, RbacObject {
+public class HsOfficeCoopSharesTransactionEntity implements Stringifyable, RbacObject<HsOfficeCoopSharesTransactionEntity> {
 
     private static Stringify<HsOfficeCoopSharesTransactionEntity> stringify = stringify(HsOfficeCoopSharesTransactionEntity.class)
             .withIdProp(HsOfficeCoopSharesTransactionEntity::getMemberNumberTagged)

src/main/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorController.java

@@ -5,6 +5,7 @@ import net.hostsharing.hsadminng.hs.office.generated.api.v1.api.HsOfficeDebitors
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeDebitorInsertResource;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeDebitorPatchResource;
 import net.hostsharing.hsadminng.hs.office.generated.api.v1.model.HsOfficeDebitorResource;
+import net.hostsharing.hsadminng.hs.office.partner.HsOfficePartnerRepository;
 import net.hostsharing.hsadminng.hs.office.relation.HsOfficeRelationEntity;
 import net.hostsharing.hsadminng.hs.office.relation.HsOfficeRelationRepository;
 import net.hostsharing.hsadminng.mapper.Mapper;
@@ -37,6 +38,9 @@ public class HsOfficeDebitorController implements HsOfficeDebitorsApi {
     @Autowired
     private HsOfficeDebitorRepository debitorRepo;
 
+    @Autowired
+    private HsOfficePartnerRepository partnerRepo;
+
     @Autowired
     private HsOfficeRelationRepository relRepo;
 
@@ -91,6 +95,9 @@ public class HsOfficeDebitorController implements HsOfficeDebitorsApi {
                     () -> { throw new EntityNotFoundException("ERROR: [400] debitorRelUuid not found: " + body.getDebitorRelUuid());});
         }
 
+        final var relatedPartner = partnerRepo.findPartnerByPartnerPersonUuid(entityToSave.getDebitorRel().getHolder().getUuid());
+        entityToSave.setPartnerNumber(relatedPartner.getPartnerNumber());
+
         final var savedEntity = debitorRepo.save(entityToSave);
         em.flush();
         em.refresh(savedEntity);

src/main/java/net/hostsharing/hsadminng/hs/office/debitor/HsOfficeDebitorEntity.java

@@ -7,13 +7,13 @@ import lombok.NoArgsConstructor;
 import lombok.Setter;
 import net.hostsharing.hsadminng.errors.DisplayName;
 import net.hostsharing.hsadminng.hs.office.bankaccount.HsOfficeBankAccountEntity;
-import net.hostsharing.hsadminng.hs.office.partner.HsOfficePartnerEntity;
 import net.hostsharing.hsadminng.hs.office.relation.HsOfficeRelationEntity;
 import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView;
 import net.hostsharing.hsadminng.rbac.rbacdef.RbacView.SQL;
 import net.hostsharing.hsadminng.stringify.Stringify;
 import net.hostsharing.hsadminng.stringify.Stringifyable;
+import org.hibernate.Hibernate;
 import org.hibernate.annotations.GenericGenerator;
 
 import jakarta.persistence.Column;
@@ -54,7 +54,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("Debitor")
-public class HsOfficeDebitorEntity implements RbacObject, Stringifyable {
+public class HsOfficeDebitorEntity implements RbacObject<HsOfficeDebitorEntity>, Stringifyable {
 
     public static final String DEBITOR_NUMBER_TAG = "D-";
     public static final String TWO_DECIMAL_DIGITS = "^([0-9]{2})$";
@@ -107,6 +107,16 @@ public class HsOfficeDebitorEntity implements RbacObject, Stringifyable {
     @Column(name = "defaultprefix", columnDefinition = "char(3) not null")
     private String defaultPrefix;
 
+    @Override
+    public HsOfficeDebitorEntity load() {
+        RbacObject.super.load();
+        debitorRel.load();
+        if (refundBankAccount != null) {
+            refundBankAccount.load();
+        }
+        return this;
+    }
+
     private String getDebitorNumberString() {
         return ofNullable(partnerNumber)
                 .filter(partner -> debitorNumberSuffix != null)

src/main/java/net/hostsharing/hsadminng/hs/office/membership/HsOfficeMembershipEntity.java

@@ -61,7 +61,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("Membership")
-public class HsOfficeMembershipEntity implements RbacObject, Stringifyable {
+public class HsOfficeMembershipEntity implements RbacObject<HsOfficeMembershipEntity>, Stringifyable {
 
     public static final String MEMBER_NUMBER_TAG = "M-";
     public static final String TWO_DECIMAL_DIGITS = "^([0-9]{2})$";
@@ -99,6 +99,13 @@ public class HsOfficeMembershipEntity implements RbacObject, Stringifyable {
     @Enumerated(EnumType.STRING)
     private HsOfficeMembershipStatus status;
 
+    @Override
+    public HsOfficeMembershipEntity load() {
+        RbacObject.super.load();
+        partner.load();
+        return this;
+    }
+
     public void setValidFrom(final LocalDate validFrom) {
         setValidity(toPostgresDateRange(validFrom, getValidTo()));
     }

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerDetailsEntity.java

@@ -26,7 +26,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("PartnerDetails")
-public class HsOfficePartnerDetailsEntity implements RbacObject, Stringifyable {
+public class HsOfficePartnerDetailsEntity implements RbacObject<HsOfficePartnerDetailsEntity>, Stringifyable {
 
     private static Stringify<HsOfficePartnerDetailsEntity> stringify = stringify(
             HsOfficePartnerDetailsEntity.class,

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerEntity.java

@@ -40,7 +40,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("Partner")
-public class HsOfficePartnerEntity implements Stringifyable, RbacObject {
+public class HsOfficePartnerEntity implements Stringifyable, RbacObject<HsOfficePartnerEntity> {
 
     public static final String PARTNER_NUMBER_TAG = "P-";
 
@@ -66,11 +66,11 @@ public class HsOfficePartnerEntity implements Stringifyable, RbacObject {
     @Column(name = "partnernumber", columnDefinition = "numeric(5) not null")
     private Integer partnerNumber;
 
-    @ManyToOne(cascade = { PERSIST, MERGE, REFRESH, DETACH }, optional = false)
+    @ManyToOne(cascade = { PERSIST, MERGE, REFRESH, DETACH }, optional = false, fetch = FetchType.EAGER)
     @JoinColumn(name = "partnerreluuid", nullable = false)
     private HsOfficeRelationEntity partnerRel;
 
-    @ManyToOne(cascade = { PERSIST, MERGE, REFRESH, DETACH }, optional = true)
+    @ManyToOne(cascade = { PERSIST, MERGE, REFRESH, DETACH }, optional = true, fetch = FetchType.EAGER)
     @JoinColumn(name = "detailsuuid")
     @NotFound(action = NotFoundAction.IGNORE)
     private HsOfficePartnerDetailsEntity details;

src/main/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerRepository.java

@@ -31,13 +31,11 @@ public interface HsOfficePartnerRepository extends Repository<HsOfficePartnerEnt
     @Query("""
         SELECT DISTINCT partner
             FROM HsOfficePartnerEntity partner
-            JOIN HsOfficeRelationEntity dRel
-                ON dRel.uuid = :debitorUuid AND dRel.type = 'DEBITOR'
             JOIN HsOfficeRelationEntity pRel
                 ON pRel.uuid = partner.partnerRel.uuid AND pRel.type = 'PARTNER'
-            WHERE pRel.holder.uuid = dRel.anchor.uuid
+            WHERE pRel.holder.uuid = :partnerPersonUuid
     """)
-    HsOfficePartnerEntity findPartnerByDebitorUuid(UUID debitorUuid);
+    HsOfficePartnerEntity findPartnerByPartnerPersonUuid(UUID partnerPersonUuid);
 
     HsOfficePartnerEntity save(final HsOfficePartnerEntity entity);
 

src/main/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonEntity.java

@@ -30,7 +30,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @AllArgsConstructor
 @FieldNameConstants
 @DisplayName("Person")
-public class HsOfficePersonEntity implements RbacObject, Stringifyable {
+public class HsOfficePersonEntity implements RbacObject<HsOfficePersonEntity>, Stringifyable {
 
     private static Stringify<HsOfficePersonEntity> toString = stringify(HsOfficePersonEntity.class, "person")
             .withProp(Fields.personType, HsOfficePersonEntity::getPersonType)

src/main/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationEntity.java

@@ -75,6 +75,15 @@ public class HsOfficeRelationEntity implements RbacObject, Stringifyable {
     @Column(name = "mark")
     private String mark;
 
+    @Override
+    public RbacObject<?> load() {
+        RbacObject.super.load();
+        anchor.load();
+        holder.load();
+        contact.load();
+        return this;
+    }
+
     @Override
     public String toString() {
         return toString.apply(this);

src/main/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateEntity.java

@@ -40,7 +40,7 @@ import static net.hostsharing.hsadminng.stringify.Stringify.stringify;
 @NoArgsConstructor
 @AllArgsConstructor
 @DisplayName("SEPA-Mandate")
-public class HsOfficeSepaMandateEntity implements Stringifyable, RbacObject {
+public class HsOfficeSepaMandateEntity implements Stringifyable, RbacObject<HsOfficeSepaMandateEntity> {
 
     private static Stringify<HsOfficeSepaMandateEntity> stringify = stringify(HsOfficeSepaMandateEntity.class)
             .withProp(e -> e.getBankAccount().getIban())

src/main/java/net/hostsharing/hsadminng/rbac/rbacobject/RbacObject.java

@@ -1,10 +1,18 @@
 package net.hostsharing.hsadminng.rbac.rbacobject;
 
 
+import org.hibernate.Hibernate;
+
 import java.util.UUID;
 
-public interface RbacObject {
+public interface RbacObject<T extends RbacObject<?>> {
     UUID getUuid();
 
     int getVersion();
+
+    default T load() {
+        Hibernate.initialize(this);
+        //noinspection unchecked
+        return (T) this;
+    };
 }

src/main/java/net/hostsharing/hsadminng/rbac/test/cust/TestCustomerEntity.java

@@ -24,7 +24,7 @@ import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class TestCustomerEntity implements RbacObject {
+public class TestCustomerEntity implements RbacObject<TestCustomerEntity> {
 
     @Id
     @GeneratedValue

src/main/java/net/hostsharing/hsadminng/rbac/test/dom/TestDomainEntity.java

@@ -27,7 +27,7 @@ import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class TestDomainEntity implements RbacObject {
+public class TestDomainEntity implements RbacObject<TestDomainEntity> {
 
     @Id
     @GeneratedValue

src/main/java/net/hostsharing/hsadminng/rbac/test/pac/TestPackageEntity.java

@@ -27,7 +27,7 @@ import static net.hostsharing.hsadminng.rbac.rbacdef.RbacView.rbacViewFor;
 @Setter
 @NoArgsConstructor
 @AllArgsConstructor
-public class TestPackageEntity implements RbacObject {
+public class TestPackageEntity implements RbacObject<TestPackageEntity> {
 
     @Id
     @GeneratedValue

src/test/java/net/hostsharing/hsadminng/hs/office/bankaccount/HsOfficeBankAccountControllerAcceptanceTest.java

@@ -287,7 +287,10 @@ class HsOfficeBankAccountControllerAcceptanceTest extends ContextBasedTestWithCl
                     .statusCode(204); // @formatter:on
 
             // then the given bankaccount is still there
-            assertThat(bankAccountRepo.findByUuid(givenBankAccount.getUuid())).isEmpty();
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net", null);
+                assertThat(bankAccountRepo.findByUuid(givenBankAccount.getUuid())).isEmpty();
+            }).assertSuccessful();
         }
 
         @Test

src/test/java/net/hostsharing/hsadminng/hs/office/contact/HsOfficeContactControllerAcceptanceTest.java

@@ -309,7 +309,10 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .statusCode(204); // @formatter:on
 
             // then the given contact is gone
-            assertThat(contactRepo.findByUuid(givenContact.getUuid())).isEmpty();
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net", null);
+                assertThat(contactRepo.findByUuid(givenContact.getUuid())).isEmpty();
+            }).assertSuccessful();
         }
 
         @Test
@@ -326,7 +329,10 @@ class HsOfficeContactControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .statusCode(204); // @formatter:on
 
             // then the given contact is still there
-            assertThat(contactRepo.findByUuid(givenContact.getUuid())).isEmpty();
+            jpaAttempt.transacted(() -> {
+                context("superuser-alex@hostsharing.net", null);
+                assertThat(contactRepo.findByUuid(givenContact.getUuid())).isEmpty();
+            }).assertSuccessful();
         }
 
         @Test

src/test/java/net/hostsharing/hsadminng/hs/office/coopassets/HsOfficeCoopAssetsTransactionRepositoryIntegrationTest.java

@@ -119,7 +119,7 @@ class HsOfficeCoopAssetsTransactionRepositoryIntegrationTest extends ContextBase
 
         private void assertThatCoopAssetsTransactionIsPersisted(final HsOfficeCoopAssetsTransactionEntity saved) {
             final var found = coopAssetsTransactionRepo.findByUuid(saved.getUuid());
-            assertThat(found).isNotEmpty().get().usingRecursiveComparison().isEqualTo(saved);
+            assertThat(found).isNotEmpty().get().extracting(HsOfficeCoopAssetsTransactionEntity::toString).isEqualTo(saved.toString());
         }
     }
 

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

@@ -118,7 +118,7 @@ class HsOfficeCoopSharesTransactionRepositoryIntegrationTest extends ContextBase
 
         private void assertThatCoopSharesTransactionIsPersisted(final HsOfficeCoopSharesTransactionEntity saved) {
             final var found = coopSharesTransactionRepo.findByUuid(saved.getUuid());
-            assertThat(found).isNotEmpty().get().usingRecursiveComparison().isEqualTo(saved);
+            assertThat(found).isNotEmpty().get().extracting(HsOfficeCoopSharesTransactionEntity::toString).isEqualTo(saved.toString());
         }
     }
 

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

@@ -113,38 +113,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                         },
                         "debitorNumber": 1000111,
                         "debitorNumberSuffix": 11,
-                        "partner": {
-                          "partnerNumber": 10001,
-                          "partnerRel": {
-                            "anchor": {
-                              "personType": "LEGAL_PERSON",
-                              "tradeName": "Hostsharing eG",
-                              "givenName": null,
-                              "familyName": null
-                            },
-                            "holder": {
-                              "personType": "LEGAL_PERSON",
-                              "tradeName": "First GmbH",
-                              "givenName": null,
-                              "familyName": null
-                            },
-                            "type": "PARTNER",
-                            "mark": null,
-                            "contact": {
-                              "caption": "first contact",
-                              "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
-                              "phoneNumbers": { "phone_office": "+49 123 1234567" }
-                            }
-                          },
-                          "details": {
-                            "registrationOffice": "Hamburg",
-                            "registrationNumber": "RegNo123456789",
-                            "birthName": null,
-                            "birthPlace": null,
-                            "birthday": null,
-                            "dateOfDeath": null
-                          }
-                        },
                         "billable": true,
                         "vatId": null,
                         "vatCountryCode": null,
@@ -168,21 +136,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                         },
                         "debitorNumber": 1000212,
                         "debitorNumberSuffix": 12,
-                        "partner": {
-                          "partnerNumber": 10002,
-                          "partnerRel": {
-                            "anchor": {"tradeName": "Hostsharing eG"},
-                            "holder": {"tradeName": "Second e.K."},
-                            "type": "PARTNER",
-                            "contact": {
-                                "emailAddresses": { "main": "contact-admin@secondcontact.example.com" }
-                            }
-                          },
-                          "details": {
-                            "registrationOffice": "Hamburg",
-                            "registrationNumber": "RegNo123456789"
-                          }
-                        },
                         "billable": true,
                         "vatId": null,
                         "vatCountryCode": null,
@@ -202,21 +155,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                         },
                         "debitorNumber": 1000313,
                         "debitorNumberSuffix": 13,
-                        "partner": {
-                          "partnerNumber": 10003,
-                          "partnerRel": {
-                            "anchor": {"tradeName": "Hostsharing eG"},
-                            "holder": {"tradeName": "Third OHG"},
-                            "type": "PARTNER",
-                            "contact": {
-                                "emailAddresses": { "main": "contact-admin@thirdcontact.example.com" }
-                            }
-                          },
-                          "details": {
-                            "registrationOffice": "Hamburg",
-                            "registrationNumber": "RegNo123456789"
-                          }
-                        },
                         "billable": true,
                         "vatId": null,
                         "vatCountryCode": null,
@@ -357,7 +295,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                     .contentType(ContentType.JSON)
                     .body("uuid", isUuidValid())
                     .body("debitorRel.contact.caption", is(givenContact.getCaption()))
-                    .body("partner.partnerRel.holder.tradeName", is(givenPartner.getPartnerRel().getHolder().getTradeName()))
                     .body("vatId", equalTo(null))
                     .body("vatCountryCode", equalTo(null))
                     .body("vatBusiness", equalTo(false))
@@ -471,25 +408,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                          },
                          "debitorNumber": 1000111,
                          "debitorNumberSuffix": 11,
-                         "partner": {
-                             "partnerNumber": 10001,
-                             "partnerRel": {
-                                 "anchor": { "personType": "LEGAL_PERSON", "tradeName": "Hostsharing eG"},
-                                 "holder": { "personType": "LEGAL_PERSON", "tradeName": "First GmbH"},
-                                 "type": "PARTNER",
-                                 "mark": null,
-                                 "contact": {
-                                     "caption": "first contact",
-                                     "postalAddress": "Vorname Nachname\\nStraße Hnr\\nPLZ Stadt",
-                                     "emailAddresses": { "main": "contact-admin@firstcontact.example.com" },
-                                     "phoneNumbers": { "phone_office": "+49 123 1234567" }
-                                 }
-                             },
-                             "details": {
-                                 "registrationOffice": "Hamburg",
-                                 "registrationNumber": "RegNo123456789"
-                             }
-                         },
                          "billable": true,
                          "vatBusiness": true,
                          "vatReverseCharge": false,
@@ -583,24 +501,6 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                                 },
                                 "debitorNumber": 10004${debitorNumberSuffix},
                                 "debitorNumberSuffix": ${debitorNumberSuffix},
-                                "partner": {
-                                    "partnerNumber": 10004,
-                                    "partnerRel": {
-                                        "anchor": { "tradeName": "Hostsharing eG" },
-                                        "holder": { "tradeName": "Fourth eG" },
-                                        "type": "PARTNER",
-                                        "mark": null,
-                                        "contact": { "caption": "fourth contact" }
-                                    },
-                                    "details": {
-                                        "registrationOffice": "Hamburg",
-                                        "registrationNumber": "RegNo123456789",
-                                        "birthName": null,
-                                        "birthPlace": null,
-                                        "birthday": null,
-                                        "dateOfDeath": null
-                                    }
-                                },
                                 "billable": true,
                                 "vatId": "VAT222222",
                                 "vatCountryCode": "AA",
@@ -609,22 +509,24 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
                                 "defaultPrefix": "for"
                             }
                             """
-                            .replace("${debitorNumberSuffix}", givenDebitor.getDebitorNumberSuffix().toString()))
+                            .replace("${debitorNumberSuffix}", givenDebitor.getDebitorNumberSuffix()))
                     );
                 // @formatter:on
 
             // finally, the debitor is actually updated
-            context.define("superuser-alex@hostsharing.net");
+            jpaAttempt.transacted(() -> {
-            assertThat(debitorRepo.findByUuid(givenDebitor.getUuid())).isPresent().get()
+                context.define("superuser-alex@hostsharing.net");
-                    .matches(debitor -> {
+                assertThat(debitorRepo.findByUuid(givenDebitor.getUuid())).isPresent().get()
-                        assertThat(debitor.getDebitorRel().getHolder().getTradeName())
+                        .matches(debitor -> {
-                                .isEqualTo(givenDebitor.getDebitorRel().getHolder().getTradeName());
+                            assertThat(debitor.getDebitorRel().getHolder().getTradeName())
-                        assertThat(debitor.getDebitorRel().getContact().getCaption()).isEqualTo("fourth contact");
+                                    .isEqualTo(givenDebitor.getDebitorRel().getHolder().getTradeName());
-                        assertThat(debitor.getVatId()).isEqualTo("VAT222222");
+                            assertThat(debitor.getDebitorRel().getContact().getCaption()).isEqualTo("fourth contact");
-                        assertThat(debitor.getVatCountryCode()).isEqualTo("AA");
+                            assertThat(debitor.getVatId()).isEqualTo("VAT222222");
-                        assertThat(debitor.isVatBusiness()).isEqualTo(true);
+                            assertThat(debitor.getVatCountryCode()).isEqualTo("AA");
-                        return true;
+                            assertThat(debitor.isVatBusiness()).isEqualTo(true);
-                    });
+                            return true;
+                        });
+            }).assertSuccessful();
         }
 
         @Test
@@ -721,6 +623,7 @@ class HsOfficeDebitorControllerAcceptanceTest extends ContextBasedTestWithCleanu
             final var givenPartner = partnerRepo.findPartnerByOptionalNameLike("Fourth").get(0);
             final var givenContact = contactRepo.findContactByOptionalCaptionLike("fourth contact").get(0);
             final var newDebitor = HsOfficeDebitorEntity.builder()
+                    .partnerNumber(givenPartner.getPartnerNumber())
                     .debitorNumberSuffix(nextDebitorSuffix())
                     .billable(true)
                     .debitorRel(

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

@@ -89,6 +89,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             // when
             final var result = attempt(em, () -> {
                 final var newDebitor = HsOfficeDebitorEntity.builder()
+                        .partnerNumber(10001)
                         .debitorNumberSuffix("21")
                         .debitorRel(HsOfficeRelationEntity.builder()
                                 .type(HsOfficeRelationType.DEBITOR)
@@ -99,7 +100,8 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                         .defaultPrefix("abc")
                         .billable(false)
                         .build();
-                return toCleanup(debitorRepo.save(newDebitor));
+                final HsOfficeDebitorEntity entity = debitorRepo.save(newDebitor);
+                return toCleanup(entity.load());
             });
 
             // then
@@ -156,6 +158,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                 final var givenDebitorPerson = one(personRepo.findPersonByOptionalNameLike("Fourth eG"));
                 final var givenContact = one(contactRepo.findContactByOptionalCaptionLike("fourth contact"));
                 final var newDebitor = HsOfficeDebitorEntity.builder()
+                        .partnerNumber(10001)
                         .debitorNumberSuffix("22")
                         .debitorRel(HsOfficeRelationEntity.builder()
                                 .type(HsOfficeRelationType.DEBITOR)
@@ -317,7 +320,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
 
             assertThatDebitorIsVisibleForUserWithRole(
                     givenDebitor,
-                    "hs_office_relation#FourtheG-with-DEBITOR-FourtheG:ADMIN", true);
+                    "hs_office_relation#FourtheG-with-DEBITOR-FourtheG:ADMIN");
             final var givenNewPartnerPerson = one(personRepo.findPersonByOptionalNameLike("First"));
             final var givenNewBillingPerson = one(personRepo.findPersonByOptionalNameLike("Firby"));
             final var givenNewContact = one(contactRepo.findContactByOptionalCaptionLike("sixth contact"));
@@ -339,14 +342,15 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                 givenDebitor.setVatId(givenNewVatId);
                 givenDebitor.setVatCountryCode(givenNewVatCountryCode);
                 givenDebitor.setVatBusiness(givenNewVatBusiness);
-                return toCleanup(debitorRepo.save(givenDebitor));
+                final HsOfficeDebitorEntity entity = debitorRepo.save(givenDebitor);
+                return toCleanup(entity.load());
             });
 
             // then
             result.assertSuccessful();
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "global#global:ADMIN", true);
+                    "global#global:ADMIN");
 
             // ... partner role was reassigned:
             assertThatDebitorIsNotVisibleForUserWithRole(
@@ -354,7 +358,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                     "hs_office_relation#FourtheG-with-DEBITOR-FourtheG:ADMIN");
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "hs_office_relation#FirstGmbH-with-DEBITOR-FirbySusan:AGENT", true);
+                    "hs_office_relation#FirstGmbH-with-DEBITOR-FirbySusan:AGENT");
 
             // ... contact role was reassigned:
             assertThatDebitorIsNotVisibleForUserWithRole(
@@ -362,7 +366,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                     "hs_office_contact#fifthcontact:ADMIN");
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "hs_office_contact#sixthcontact:ADMIN", false);
+                    "hs_office_contact#sixthcontact:ADMIN");
 
             // ... bank-account role was reassigned:
             assertThatDebitorIsNotVisibleForUserWithRole(
@@ -370,7 +374,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                     "hs_office_bankaccount#DE02200505501015871393:ADMIN");
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "hs_office_bankaccount#DE02120300000000202051:ADMIN", true);
+                    "hs_office_bankaccount#DE02120300000000202051:ADMIN");
         }
 
         @Test
@@ -380,27 +384,27 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             final var givenDebitor = givenSomeTemporaryDebitor("Fourth", "fifth contact", null, "fig");
             assertThatDebitorIsVisibleForUserWithRole(
                     givenDebitor,
-                    "hs_office_relation#FourtheG-with-DEBITOR-FourtheG:ADMIN", true);
+                    "hs_office_relation#FourtheG-with-DEBITOR-FourtheG:ADMIN");
-            assertThatDebitorActuallyInDatabase(givenDebitor, true);
+            assertThatDebitorActuallyInDatabase(givenDebitor);
             final var givenNewBankAccount = one(bankAccountRepo.findByOptionalHolderLike("first"));
 
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("superuser-alex@hostsharing.net");
                 givenDebitor.setRefundBankAccount(givenNewBankAccount);
-                return toCleanup(debitorRepo.save(givenDebitor));
+                return toCleanup(debitorRepo.save(givenDebitor).load());
             });
 
             // then
             result.assertSuccessful();
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "global#global:ADMIN", true);
+                    "global#global:ADMIN");
 
             // ... bank-account role was assigned:
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "hs_office_bankaccount#DE02120300000000202051:ADMIN", true);
+                    "hs_office_bankaccount#DE02120300000000202051:ADMIN");
         }
 
         @Test
@@ -410,21 +414,21 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             final var givenDebitor = givenSomeTemporaryDebitor("Fourth", "fifth contact", "Fourth", "fih");
             assertThatDebitorIsVisibleForUserWithRole(
                     givenDebitor,
-                    "hs_office_relation#HostsharingeG-with-PARTNER-FourtheG:AGENT", true);
+                    "hs_office_relation#HostsharingeG-with-PARTNER-FourtheG:AGENT");
-            assertThatDebitorActuallyInDatabase(givenDebitor, true);
+            assertThatDebitorActuallyInDatabase(givenDebitor);
 
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("superuser-alex@hostsharing.net");
                 givenDebitor.setRefundBankAccount(null);
-                return toCleanup(debitorRepo.save(givenDebitor));
+                return toCleanup(debitorRepo.save(givenDebitor).load());
             });
 
             // then
             result.assertSuccessful();
             assertThatDebitorIsVisibleForUserWithRole(
                     result.returnedValue(),
-                    "global#global:ADMIN", true);
+                    "global#global:ADMIN");
 
             // ... bank-account role was removed from previous bank-account admin:
             assertThatDebitorIsNotVisibleForUserWithRole(
@@ -439,8 +443,8 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             final var givenDebitor = givenSomeTemporaryDebitor("Fourth", "eighth", "Fourth", "eig");
             assertThatDebitorIsVisibleForUserWithRole(
                     givenDebitor,
-                    "hs_office_relation#HostsharingeG-with-PARTNER-FourtheG:AGENT", true);
+                    "hs_office_relation#HostsharingeG-with-PARTNER-FourtheG:AGENT");
-            assertThatDebitorActuallyInDatabase(givenDebitor, true);
+            assertThatDebitorActuallyInDatabase(givenDebitor);
 
             // when
             final var result = jpaAttempt.transacted(() -> {
@@ -459,16 +463,17 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             // given
             context("superuser-alex@hostsharing.net");
             final var givenDebitor = givenSomeTemporaryDebitor("Fourth", "ninth", "Fourth", "nin");
-            assertThatDebitorActuallyInDatabase(givenDebitor, true);
+            assertThatDebitorActuallyInDatabase(givenDebitor);
             assertThatDebitorIsVisibleForUserWithRole(
                     givenDebitor,
-                    "hs_office_contact#ninthcontact:ADMIN", false);
+                    "hs_office_contact#ninthcontact:ADMIN");
 
             // when
             final var result = jpaAttempt.transacted(() -> {
                 context("superuser-alex@hostsharing.net", "hs_office_contact#ninthcontact:ADMIN");
                 givenDebitor.setVatId("NEW-VAT-ID");
-                return toCleanup(debitorRepo.save(givenDebitor));
+                final HsOfficeDebitorEntity entity = debitorRepo.save(givenDebitor);
+                return toCleanup(entity.load());
             });
 
             // then
@@ -478,7 +483,7 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                     "Unable to find net.hostsharing.hsadminng.hs.office.bankaccount.HsOfficeBankAccountEntity with id ");
         }
 
-        private void assertThatDebitorActuallyInDatabase(final HsOfficeDebitorEntity saved, final boolean withPartner) {
+        private void assertThatDebitorActuallyInDatabase(final HsOfficeDebitorEntity saved) {
             final var found = debitorRepo.findByUuid(saved.getUuid());
             assertThat(found).isNotEmpty();
             found.ifPresent(foundEntity -> {
@@ -492,11 +497,10 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
 
         private void assertThatDebitorIsVisibleForUserWithRole(
                 final HsOfficeDebitorEntity entity,
-                final String assumedRoles,
+                final String assumedRoles) {
-                final boolean withPartner) {
             jpaAttempt.transacted(() -> {
                 context("superuser-alex@hostsharing.net", assumedRoles);
-                assertThatDebitorActuallyInDatabase(entity, withPartner);
+                assertThatDebitorActuallyInDatabase(entity);
             }).assertSuccessful();
         }
 
@@ -605,11 +609,13 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
             final String defaultPrefix) {
         return jpaAttempt.transacted(() -> {
             context("superuser-alex@hostsharing.net");
-            final var givenPartnerPerson = one(personRepo.findPersonByOptionalNameLike(partnerName));
+            final var givenPartner = one(partnerRepo.findPartnerByOptionalNameLike(partnerName));
+            final var givenPartnerPerson = givenPartner.getPartnerRel().getHolder();
             final var givenContact = one(contactRepo.findContactByOptionalCaptionLike(contactCaption));
             final var givenBankAccount =
                     bankAccountHolder != null ? one(bankAccountRepo.findByOptionalHolderLike(bankAccountHolder)) : null;
             final var newDebitor = HsOfficeDebitorEntity.builder()
+                    .partnerNumber(givenPartner.getPartnerNumber())
                     .debitorNumberSuffix("20")
                     .debitorRel(HsOfficeRelationEntity.builder()
                             .type(HsOfficeRelationType.DEBITOR)
@@ -622,7 +628,8 @@ class HsOfficeDebitorRepositoryIntegrationTest extends ContextBasedTestWithClean
                     .billable(true)
                     .build();
 
-            return toCleanup(debitorRepo.save(newDebitor));
+            final HsOfficeDebitorEntity entity = debitorRepo.save(newDebitor);
+            return toCleanup(entity.load());
         }).assertSuccessful().returnedValue();
     }
 

src/test/java/net/hostsharing/hsadminng/hs/office/membership/HsOfficeMembershipRepositoryIntegrationTest.java

@@ -4,6 +4,7 @@ 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.hs.office.partner.HsOfficePartnerRepository;
+import net.hostsharing.hsadminng.rbac.rbacobject.RbacObject;
 import net.hostsharing.hsadminng.rbac.test.ContextBasedTestWithCleanup;
 import net.hostsharing.hsadminng.rbac.rbacgrant.RawRbacGrantRepository;
 import net.hostsharing.hsadminng.rbac.rbacrole.RawRbacRoleRepository;
@@ -75,7 +76,7 @@ class HsOfficeMembershipRepositoryIntegrationTest extends ContextBasedTestWithCl
                         .validity(Range.closedInfinite(LocalDate.parse("2020-01-01")))
                         .membershipFeeBillable(true)
                         .build();
-                return toCleanup(membershipRepo.save(newMembership));
+                return toCleanup(membershipRepo.save(newMembership).load());
             });
 
             // then
@@ -202,9 +203,12 @@ class HsOfficeMembershipRepositoryIntegrationTest extends ContextBasedTestWithCl
         @Test
         public void globalAdmin_canUpdateValidityOfArbitraryMembership() {
             // given
-            context("superuser-alex@hostsharing.net");
+            final var givenMembership =  jpaAttempt.transacted(() -> {
-            final var givenMembership = givenSomeTemporaryMembership("First", "11");
+                        context("superuser-alex@hostsharing.net");
-            assertThatMembershipExistsAndIsAccessibleToCurrentContext(givenMembership);
+                        final var tempMembership = givenSomeTemporaryMembership("First", "11");
+                        assertThatMembershipExistsAndIsAccessibleToCurrentContext(tempMembership);
+                        return tempMembership;
+                    }).assertSuccessful().returnedValue();
             final var newValidityEnd = LocalDate.now();
 
             // when
@@ -214,13 +218,12 @@ class HsOfficeMembershipRepositoryIntegrationTest extends ContextBasedTestWithCl
                 givenMembership.setValidity(Range.closedOpen(
                         givenMembership.getValidity().lower(), newValidityEnd));
                 givenMembership.setStatus(HsOfficeMembershipStatus.CANCELLED);
-                return toCleanup(membershipRepo.save(givenMembership));
+                final HsOfficeMembershipEntity entity = membershipRepo.save(givenMembership);
+                return toCleanup(entity.load());
             });
 
             // then
             result.assertSuccessful();
-
-            membershipRepo.deleteByUuid(givenMembership.getUuid());
         }
 
         @Test
@@ -363,7 +366,8 @@ class HsOfficeMembershipRepositoryIntegrationTest extends ContextBasedTestWithCl
                     .membershipFeeBillable(true)
                     .build();
 
-            return toCleanup(membershipRepo.save(newMembership));
+            final HsOfficeMembershipEntity entity = membershipRepo.save(newMembership);
+            return toCleanup(entity.load());
         }).assertSuccessful().returnedValue();
     }
 

src/test/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerControllerAcceptanceTest.java

@@ -548,7 +548,7 @@ class HsOfficePartnerControllerAcceptanceTest extends ContextBasedTestWithCleanu
                             .build())
                     .build();
 
-            return partnerRepo.save(newPartner);
+            return partnerRepo.save(newPartner).load();
         }).assertSuccessful().returnedValue();
     }
 

src/test/java/net/hostsharing/hsadminng/hs/office/partner/HsOfficePartnerRepositoryIntegrationTest.java

@@ -473,7 +473,7 @@ class HsOfficePartnerRepositoryIntegrationTest extends ContextBasedTestWithClean
                 .anchor(givenMandantorPerson)
                 .contact(givenContact)
                 .build();
-        relationRepo.save(partnerRel);
+        relationRepo.save(partnerRel).load();
         return partnerRel;
     }
 

src/test/java/net/hostsharing/hsadminng/hs/office/person/HsOfficePersonControllerAcceptanceTest.java

@@ -332,7 +332,7 @@ class HsOfficePersonControllerAcceptanceTest extends ContextBasedTestWithCleanup
                     .givenName("Temp Given Name " + RandomStringUtils.randomAlphabetic(10))
                     .build();
 
-            return personRepo.save(newPerson);
+            return personRepo.save(newPerson).load();
         }).assertSuccessful().returnedValue();
     }
 

src/test/java/net/hostsharing/hsadminng/hs/office/relation/HsOfficeRelationRepositoryIntegrationTest.java

@@ -295,7 +295,8 @@ class HsOfficeRelationRepositoryIntegrationTest extends ContextBasedTestWithClea
             final var found = relationRepo.findByUuid(saved.getUuid());
             assertThat(found).isNotEmpty().get()
                     .isNotSameAs(saved)
-                    .usingRecursiveComparison().ignoringFields("version").isEqualTo(saved);
+                    .extracting(HsOfficeRelationEntity::toString)
+                    .isEqualTo(saved.toString());
         }
 
         private void assertThatRelationIsVisibleForUserWithRole(

src/test/java/net/hostsharing/hsadminng/hs/office/sepamandate/HsOfficeSepaMandateControllerAcceptanceTest.java

@@ -497,7 +497,7 @@ class HsOfficeSepaMandateControllerAcceptanceTest extends ContextBasedTestWithCl
         return jpaAttempt.transacted(() -> {
             context.define("superuser-alex@hostsharing.net");
             final var givenDebitor = debitorRepo.findDebitorByDebitorNumber(debitorNumber).get(0);
-            final var givenPartner = partnerRepo.findPartnerByDebitorUuid(givenDebitor.getUuid());
+            final var givenPartner = partnerRepo.findPartnerByPartnerNumber(debitorNumber/100);
             final var bankAccountHolder = ofNullable(givenPartner.getPartnerRel().getHolder().getTradeName())
                     .orElse(givenPartner.getPartnerRel().getHolder().getFamilyName());
             final var givenBankAccount = bankAccountRepo.findByOptionalHolderLike(bankAccountHolder).get(0);