156 | Selective merge/cascade of detatched entity Company. Each salesman is given many numerical targets for the new company. I then need to merge each ... ); for (Salesman s : salesmen) em.merge(s); This appears to have the effect of checking and merging ... objects attached to each Salesman, and each Salesman has hundreds of targets for each Company, this merge |
139 | Merge Issue: Attempt to reuse an existing primary key value a feature on an ordinary merge operation. This is the test case ( work in 2.4.6 version ) : 2 parents ... "); EntityManager em = null ; // Merge parent1 em = emf ... ("child1")); em.merge(e1); em.getTransaction().commit(); em.clear |
133 | Extra uninitialised entities spawned on merge()_MERGE = true; /** * @param args the command line arguments */ public static ... ); if (DO_PERSIST_BEFORE_MERGE) { em.getTransaction().begin(); em.persist(e ... (); em.merge(root); em.getTransaction().commit(); TypedQuery<Element> query = em |
130 | Merge on detached entitiesHello, it is possible to merge detached entities? There are some attached entities which load from ... the fields of the detached entities will be changed and a merge by em.merge(entity) will be saved the entities. Can this works correctly? How are the rules of the merge process? Do the changed fields |
129 | Cascading merge() leading to "Attempt to persist a reference to a non managed instance" error with a parent/child relationship and cascading merge() operations. The parent has an application defined id ... (); tx.begin(); em.merge(new Child(new Parent("Joe"))); em.merge(new Child(new Parent("Tim ... . Cascading merge to new entity objects (the Parent instances in your code) is currently broken |
124 | EntityManager.merge gives EntityNotFoundExceptionJust started using objectdb (2.3.4). Calling EntityManager.merge for a new (non-managed) object ... .EntityNotFoundException Entity is not found: classdb.Test#'id' (error 631) at com.objectdb.jpa.EMImpl.merge(EMImpl.java:456) at classdb.Test.main(Test.java:32) thepigs Matt Pepar You are right, merging non |
122 | NullpointerException when execute a merge that is persisted with "merge()". Then we want to persist “merge()” an new object of a different type ... .onObjectDBError(OBC.java:1503) at com.objectdb.jpa.EMImpl.merge(EMImpl.java:526) at com.btc.ep.dal ... ) at com.objectdb.jpa.EMImpl.merge(EMImpl.java:523) ... 43 more But if we use enhanced classes |
71 | merge(entity)Method javax.persistence.EntityManager T merge( T entity ) Merge the state of the given entity into the current persistence context. Parameters: entity - entity instance Returns: the managed instance that the state was merged to Throws: IllegalArgumentException - if instance is not an entity or |
70 | CascadeType.MERGEEnum Constant javax.persistence.CascadeType MERGE Cascade merge operation Since: JPA 1.0 |
54 | Detached Entity Objects the database unless modified detached objects are merged back into an EntityManager to become managed ... invocation of rollback or by a commit failure. Explicit Merge Detached objects can be attached to any EntityManager by using the merge method: em.merge(employee); The content of the specified |
