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1-50 of 200 resultsAttempt to begin a new transaction when a transaction is active(); emf.close(); } public void storeRecord(Record r) { em.getTransaction(). begin (); em.persist(r); em ... ._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active root cause | |
EntityTransaction.begin() - JPA Method JPA Method in jakarta.persistence.EntityTransaction void begin () Start a resource transaction. Throws: IllegalStateException - if {@link #isActive()} is true Since: JPA 1.0 | |
Storing JPA Entity Objects", "Joseph", "Wurzelbacher"); em. getTransaction (). begin (); em. persist (employee); em. getTransaction ... (address); em. getTransaction (). begin (); em. persist (employee); em. getTransaction (). commit ... transactions: em. getTransaction (). begin (); for (int i = 1; i | |
Setting and Tuning of JPA Queries anything outside that window). The setFirstResult method is used to specify where the result window begins , i.e. how many results at the beginning of the complete result list should be skipped and ignored | |
Obtaining a JPA Database Connection to begin a transaction: em. getTransaction (). begin (); There is a one to one relationship between | |
Database Connection using JPA that is available via the getTransaction method: try { em. getTransaction (). begin (); // Operations ... a call to begin and ended by a call to either commit or rollback . All the operations on the database | |
Updating JPA Entity Objects. getTransaction (). begin (); employee.setNickname("Joe the Plumber"); em. getTransaction (). commit ... . getTransaction (). begin (); employee.projects[0] = new Project(); // not detected automatically | |
CRUD Database Operations with JPA Given an EntityManager , em , that represents a JPA connection to the object database, we can use it to store, retrieve, update and delete database objects. Storing New Entity Objects The following code fragment stores 1,000 Point objects in the database: em. getTransaction (). begin | |
Deleting JPA Entity Objects); em. getTransaction (). begin (); em. remove (employee); em. getTransaction (). commit (); The entity | |
Posting Sample Code.getTransaction(). begin (); MyEntity e = new MyEntity("test | |
Database Explorer Changes , the Explorer automatically begins a new transaction for the next editing session. Options | |
objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active') Warning: javax.ejb.EJBException: com.objectdb.o._PersistenceException: Attempt to begin a new ... get that error: Caused by: com.objectdb.o.UserException: Attempt to begin a new transaction ... on next call to buildProject(String projectName) //'com.objectdb.o.UserException: Attempt to begin a new | |
EntityManager.refresh takes a long time; logger.log(Level.INFO, " begin select for person " + new Date().toString());   ... (Level.INFO, " begin refresh for person = " +   ... + " "+ new Date().toString()); } INFO: begin select for person | |
Unexpected NoSuchFieldError exception; [ObjectDB 2.6.9_09] javax.persistence.PersistenceException Attempt to begin a new transaction when a transaction is active (error 612) at com.objectdb.jpa.EMImpl. begin (EMImpl.java:275) at javax.persistence.EntityTransaction$ begin .call(Unknown Source) at app.database.ObjectDbDatabase.transact | |
evictAll() behavior(); pm.currentTransaction(). begin (); System.out.println("Cache size after commit= " + pm ... ) and there is a result OBJECTDB OUTPUT: main--testDbProvisioning Cache size before COMMIT/ BEGIN = 1 transient transient Cache size after COMMIT/ BEGIN = 2630 transient transient Cache size after pm.evict = 2630   | |
How to Use a SF with extended Persistence Context? to the SF I get com.objectdb.o._PersistenceException: Attempt to begin a new transaction when a transaction is active. In principal The SF doesn't need to begin any transaction since it only get called ... ._PersistenceException: Attempt to begin a new transaction when a transaction is active at com | |
Merge Issue: Attempt to reuse an existing primary key value().isActive()) { em.getTransaction(). begin ... ; em.getTransaction(). begin ();   ... = emf.createEntityManager(); em.getTransaction(). begin | |
Is it possible to remove parent/child entities without refresh?(). begin (); entityManager.persist(parentEntity); parentEntity.addChild(new ChildEntity ... = entityManager.find(ParentEntity.class, Long.valueOf(1)); entityManager.getTransaction(). begin ... .refresh(parentEntity); entityManager.getTransaction(). begin (); ChildEntity childEntity2 | |
Remove an entity which attributes were changed - OptimisticLockException.createEntityManager(); em.getTransaction(). begin ();   ... ; em.getTransaction(). begin (); MyEntity e = em ... ; em.getTransaction(). begin (); MyEntity | |
Selective merge/cascade of detatched entity(). begin (); Company company = new Company("new"); em.persist(company); em.getTransaction().commit ... this? It might look something like: EntityManager em = emf.getEntityManager(); em.getTransaction(). begin ... .getTransaction. begin (); for (Salesman s : salesmen) em.uncheckedMerge(s); giveSalesmenNewTargets(salesmen | |
Optimistic locking: prevent version increment on entity collection attribute.getTransaction(). begin (); Document doc = new Document();   ... (). begin (); Document doc = new Document(); // Note that these readings will be added to the // document ... .getTransaction(). begin (); Document doc = new Document(); // Note that these readings will be added | |
Date field Index is corrupted due to time change = emf.createEntityManager(); em.getTransaction(). begin ... ; em.getTransaction(). begin (); Long r = (Long ... ; em.getTransaction(). begin ();   | |
Schema Update: class hierarchy change em = emf.createEntityManager(); // Persist an entity em.getTransaction(). begin ... ; em.getTransaction(). begin (); MyEntity entityWithID1 = em.find(MyEntity.class, 1 ... // em.getTransaction(). begin (); // MyEntity entity = new MyEntity(); // entity.id = "123 | |
Updating Entities - All have been verified to be passed Main.paygradeDB.getTransaction(). begin (); this.rate = rate ... .getResultList().forEach(p - System.out.println(p.getRate())); Main.paygradeDB.getTransaction(). begin ... .employeeDB.getTransaction(). begin (); for(Employee e : Query.employeesByPaygrade(p)) //Returns | |
Persist error @ManyToMany how to define correct entities relationships checkActive(){ if(!em.getTransaction().isActive()) em.getTransaction(). begin (); } } }   ... .getTransaction(). begin (); } } } lo Hoel I finally managed to get it working by using merge when commit fails ... (); emf.close(); } void checkActive(){ if(!em.getTransaction().isActive()) em.getTransaction(). begin | |
pessimistic lock not released on commit.createEntityManager(); em.getTransaction(). begin (); if (em.find(MyEntity.class, 1L) == null) { em ... threadA() { EntityManager em = emf.createEntityManager(); try { em.getTransaction(). begin ... .getTransaction(). begin (); System.out.println("Thread B: trying to lock..."); MyEntity e = em.find(MyEntity | |
Remove a modified entity cause an optimistic lock exception.createEntityManager(); em.getTransaction(). begin ();   ... ; em.getTransaction(). begin (); MyEntity e = em ... (FlushModeType.AUTO); em.getTransaction(). begin ();   | |
Items in list are doubled, when the entity class is not enhanced.getTransaction(). begin (); for(Object o : l){ em.remove(o); } em.getTransaction().commit(); l = em.createQuery("select i from Item i").getResultList(); em.getTransaction(). begin (); for(Object o : l){ em.remove(o); } em.getTransaction().commit(); em.getTransaction(). begin (); Customer c = new Customer | |
@OneToMany(fetch = FetchType.LAZY) list is always null EntityManager entityManager; public void persist(Object o) { try { transaction. begin ... .printStackTrace(); } } public void persistChild(Child child) { try { transaction. begin ... { transaction. begin (); entityManager.persist(o); transaction.commit(); } catch (Exception e) { e | |
Step 4: Add a Servlet Class.getTransaction(). begin (); em.persist(new Guest(name)); em.getTransaction().commit(); } // Display the list | |
Step 3: Define an EJB Session Bean transaction begin and commit . The next step is adding a Servlet Class that will serve as the application controller. | |
Step 3: Define a Spring DAO Component transaction begin and commit . The next step is adding a Controller Class . | |
Step 3: Add a Main Class = emf.createEntityManager(); // Store 1000 Point objects in the database: em.getTransaction(). begin (); for (int i = 0; i | |
Step 3: Add a Main Class.createEntityManager(); // Store 1000 Point objects in the database: em.getTransaction(). begin (); for (int i = 0; i | |
Step 3: Define a Spring DAO Component transaction begin and commit . The next step is adding a Controller Class . | |
Step 3: Define an EJB Session Bean begin and commit . The next step is adding a Servlet Class that will serve as the application controller. | |
Step 4: Add a Servlet Class.getParameter("name"); if (name != null) { em.getTransaction(). begin (); em.persist(new Guest(name)); em | |
zip file or JAR manifest missing because persistence unit is not essential. trans. begin (); ItemList i = new ItemList(); i.setItemname(" Beginning "); em.persist(i); trans.commit(); gzdillon Lai ... ; while (--iCnt=0){ trans. begin (); Page uri = new Page(); uri | |
New to Product & Having An Issue.getTransaction(). begin (); em.persist(department); em.getTransaction().commit(); }catch(Exception e){ e ... { em.getTransaction(). begin (); em.remove(this.foundResult); em.getTransaction().commit(); }catch ... departments; try{ do{ departments = q.getResultList(); em.getTransaction(). begin (); for(Department d | |
Optimistic Locking.currentTransaction(). begin (); pm.makePersistent(new Counter()); pm.currentTransaction().commit(); pm.close ... .getPersistenceManager(); Counter c1 = pm1.getExtent(Counter.class).iterator().next(); pm1.currentTransaction(). begin ... .currentTransaction(). begin (); c2.increase(); // First user commits - succeeds: pm1.currentTransaction | |
InterfaceRef jakarta.persistence.EntityManager(); EntityTransaction transaction = entityManager.getTransaction(); try { transaction. begin (); // do work ... object. The EntityTransaction instance may be used serially to begin and commit multiple transactions | |
InterfaceRef jakarta.persistence.EntityTransaction void begin () Start a resource transaction. Throws: IllegalStateException - if {@link #isActive | |
EnumConstRef jakarta.persistence.criteria.Nulls.FIRST JPA Enum Constant in jakarta.persistence.criteria.Nulls FIRST Null values occur at the beginning of the result set. Since: JPA 3.2 | |
EnumRef jakarta.persistence.criteria.Nulls JPA Enum Nulls java.lang.Object ∟ java.lang.Enum ∟ jakarta.persistence.criteria.Nulls Specifies the precedence of null values within query result sets. See Also: CriteriaBuilder.asc CriteriaBuilder.desc Since: JPA 3.2 Enum Constants FIRST Null values occur at the beginning | |
EntityManager.getTransaction() - JPA Method JPA Method in jakarta.persistence.EntityManager EntityTransaction getTransaction () Return the resource-level EntityTransaction object. The EntityTransaction instance may be used serially to begin and commit multiple transactions. Return: EntityTransaction instance Throws: IllegalStateException - if invoked on a JTA entity manager Since: JPA 1.0 | |
Tracking changes to new collections (in enhancement mode) after flush; em.getTransaction(). begin ... .createEntityManager(); em.setFlushMode(FlushModeType.AUTO); em.getTransaction(). begin (); ModelElementImpl ... .createEntityManager(); em.setFlushMode(FlushModeType.AUTO); em.getTransaction(). begin | |
Unexpected exception (Error 990) com.objectdb.o.InternalException.getTransaction(). begin (); em.persist(new MyEntity());   ... ; em.getTransaction(). begin (); embeddable.update();   ... with an embeddable: em.getTransaction(). begin ();   | |
Remove of an entry from a @OneToMany collection is not possible if the enhancer is disabled ParentEntity(); entityManager.getTransaction(). begin (); entityManager.persist(parentEntity); entityManager.getTransaction().commit(); entityManager.getTransaction(). begin ... .getTransaction(). begin (); MyEntity e = new MyEntity | |
New entity objects are duplicated on merge cascading = emf.createEntityManager(); em.getTransaction(). begin ... ; em.getTransaction(). begin (); book.chapters ... .createEntityManager(); em.getTransaction(). begin ();   | |
[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(OBC.java:961) { EntityManager em = null; try { em = getEntityManager(); em.getTransaction(). begin (); em.persist(moment); em ... Exception { EntityManager em = null; try { em = getEntityManager(); em.getTransaction(). begin (); em ... Exception { EntityManager em = null; try { em = getEntityManager(); em.getTransaction(). begin (); chart |