英文:
Does setter generates hibernate query for Entity class automatically
问题
我在Hibernate JPA Spring Boot应用程序中使用Lombok创建了一个实体类。在分析代码时，我找不到任何save()代码。是不是setter自动生成Hibernate查询并将它们保存到数据库中。
@SuperBuilder@AllArgsConstructor@NoArgsConstructor@Getter@Setter@ToString(callSuper = true)@Entity@Table(name = "operation", schema = "ssp")public class Operation extends CommonEntity {@Id@Column(name = "id")@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;@ToString.Exclude@ManyToOne@JoinColumn(name = "router_ref_id")private Router router;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)@OrderBy("sequence")private List<OperationQr> qrList;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)private Set<OperationDependency> operationDependencies;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)@OrderBy("sequence")private Set<OperationDocument> opnDocumentList;@ToString.Exclude@OneToOne@JoinColumn(name = "operation_interface")private OperationInterface operationInterface;@Column(name = "router_operation_id")private Integer routerOperationId;@Column(name = "tenant_id")private String tenantId;@Column(name = "external_system_sequence")private String externalSystemSequence;}private Operation saveDetails(OperationDetailsViewModel newOperationData, String sso, Router router, Operation operation) {// 代码省略...return operation;}@Transactionalpublic Operation addOperation(OperationDetailsViewModel newOperationData, int indexToAdd, String sso, String changeRequestNumber) {// 代码省略...return saveDetails(newOperationData, sso, router, operation);}private Operation mergeOperation(OperationDetailsViewModel operationDetailsViewModel, int i, String sso,String changeRequestNumber, Router router, RouterLock routerLock) {// 代码省略...return operation;}public static void addOperationToIndexWithResequencing(List<Operation> operations,Operation newOperationWithoutSequence, int indexToAdd) {// 代码省略...}
英文:
I have an entity class in Hibernate JPA spring boot app using lombok. While analysing the code , I could not find any save() code. Does the setter automatically generates the Hibernate queries and saves them to DB.
@SuperBuilder@AllArgsConstructor@NoArgsConstructor@Getter@Setter@ToString(callSuper = true)@Entity@Table(name = "operation", schema = "ssp")public class Operation extends CommonEntity{@Id@Column(name = "id")@GeneratedValue(strategy = GenerationType.IDENTITY)private Long id;@ToString.Exclude@ManyToOne@JoinColumn(name = "router_ref_id")private Router router;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)@OrderBy("sequence")private List<OperationQr> qrList;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)private Set<OperationDependency> operationDependencies;@ToString.Exclude@OneToMany(mappedBy = "operation", cascade = CascadeType.ALL)@OrderBy("sequence")private Set<OperationDocument> opnDocumentList;@ToString.Exclude@OneToOne@JoinColumn(name = "operation_interface")private OperationInterface operationInterface;@Column(name = "router_operation_id")private Integer routerOperationId;@Column(name = "tenant_id")private String tenantId;@Column(name = "external_system_sequence")private String externalSystemSequence;
The code which saves the Operation and its parts are :
private Operation saveDetails(OperationDetailsViewModel newOperationData, String sso, Router router, Operation operation) {copyProperties(newOperationData, operation);StopWatch stopWatch = new StopWatch();stopWatch.start();Optional<XRefWorkcenterRequirementProfile> requirementProfile = workCenterService.getRequirementProfileFor( router, newOperationData.getWorkCenter().getId() );operation.setRequrementProfile(requirementProfile.isPresent() ? requirementProfile.get().getProfileId() : null);if (isOperationInterfaceChanged(operation.getOperationInterface(), newOperationData.getOperationInterface())) {OperationInterface newOperationInterface = operationInterfaceService.getOperationInterface(router.getEnterprise(), router.getBusinessUnit(), router.getPlant(), newOperationData.getOperationInterface().getId());operation.setOperationInterface(newOperationInterface);qualityResultService.removeOldQr(operation);List<OperationQr> qrList = qualityResultService.createQrList(sso, operation, newOperationData.getGlobalQr());qrList.addAll(qualityResultService.createQrList(sso, operation, newOperationData.getLocalQr()));operation.setQrList(qrList);Set<OperationDependency> operationDependencies = operationDependenciesService.createDependencies( sso, operation, newOperationData.getDependencies() );operationDependencySetValidator.validateDependencySet( operationDependencies );operationDependenciesService.removeOldDependencies( operation );operation.setOperationDependencies( operationDependencies );documentService.removeOldOperationDocuments(operation);operation.setOpnDocumentList(documentService.createDocuments(sso, operation, newOperationData.getDocuments()));purchaseDetailService.updatePurchaseDetail(sso, operation, newOperationData.getPurchaseDetails());addCustomFields( sso, operation, newOperationData ) ;OperationUtils.setEntityUpdateData( operation, sso );stopWatch.stop();LOGGER.info("..........SaveOperationDetails.......... Total time = " + stopWatch.getTotalTimeMillis() + " ms");return operation;}
saveDetails() is wrapped in another method which is @Transactional
@Transactionalpublic Operation addOperation( OperationDetailsViewModel newOperationData, int indexToAdd, String sso, String changeRequestNumber ) {Router router = getEditableRouter( newOperationData.getRouterId(), sso, changeRequestNumber );Operation operation = prepareNewOperation(sso, router);OperationUtils.addOperationToIndexWithResequencing( router.getOperationsList(), operation, indexToAdd );return saveDetails(newOperationData, sso, router, operation);}private Operation mergeOperation(OperationDetailsViewModel operationDetailsViewModel, int i, String sso,String changeRequestNumber, Router router, RouterLock routerLock) {Operation operation;if(operationDetailsViewModel.getId() == null) {operation = saveOperationDetailsService.addOperation(operationDetailsViewModel, i, sso, changeRequestNumber);}else {operation = saveOperationDetailsService.updateOperation(operationDetailsViewModel, sso, changeRequestNumber, router, routerLock);}return operation;}public static void addOperationToIndexWithResequencing(List<Operation> operations,Operation newOperationWithoutSequence, int indexToAdd) {operations.sort(Comparator.comparing(Operation::getSequence));if (indexToAdd < operations.size()) {operations.add(indexToAdd, newOperationWithoutSequence);} else {operations.add(newOperationWithoutSequence);}resequenceOperations(operations);}
答案1
得分: 1
"setter会自动生成Hibernate查询并将它们保存到数据库吗？- 不会
基本上，save() 方法存在于CrudRepository 上。JpaRepository 继承自 CrudRepository。因此，它继承了CrudRepository的所有方法。请查阅文档链接。
英文:
"Does the setter automatically generates the Hibernate queries and saves them to DB. - NO
Basically save() is present on CrudRepository. JpaRepository extends the CrudRepository. Hence it inherits all the methods from CrudRepository. Check the docs link.
答案2
得分: 1
如果操作实体是托管实体（例如，它是从某个 JPA 存储库中检索的，比如 findOne 等），那么不需要显式的 save 或 persist 调用。它会在事务结束时自动保存。
我相信，在这里某处您肯定有一个存储库调用 -
Operation operation = prepareNewOperation(sso, router);OperationUtils.addOperationToIndexWithResequencing(router.getOperationsList(), operation, indexToAdd);
类似的答案在这里 - https://stackoverflow.com/a/46708295/11244881
英文:
If Operation entity is a managed entity (it is retrieved from some jpa repository, for example findOne etc), then explicit save or persist call is not needed. It gets automatically saved at the end of a transaction.
I believe, you must be having a repository call somewhere here -
Operation operation = prepareNewOperation(sso, router);OperationUtils.addOperationToIndexWithResequencing( router.getOperationsList(), operation, indexToAdd );
Similar answer here - https://stackoverflow.com/a/46708295/11244881
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