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the content of a database require active transactions. Transactions are managed by an EntityTransaction ... (properties); EntityTransaction Operations that affect the content of the database (store, update, delete) must be performed within an active transaction. The EntityTransaction interface represents and manages

content also require an EntityTransaction instance. Obtaining an EntityManagerFactory Obtaining ... an EntityTransaction Operations that modify database content, such as store, update, and delete ... an EntityManager instance and its associated EntityTransaction instances that the getTransaction method

JPA Interface EntityTransaction Interface used to control transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface. Since: JPA 1.0 The Database Connection using JPA article explains how to use EntityTransaction . Public

It appears that EntityTransaction .commit() does not release a pessimistic lock - test code below. I tried it in with the current (2.7.6_01) and older versions (2.6.9, 2.5.7, 2.4.7) with the same result. (side note: EntityTransaction .rollback() releases it correctly) // Account.java package icke

JPA Method in javax.persistence. EntityTransaction void rollback () Roll back the current resource transaction. Throws: IllegalStateException - if isActive() is false PersistenceException - if an unexpected error condition is encountered Since: JPA 1.0

JPA Method in javax.persistence. EntityTransaction void commit () Commit the current resource transaction, writing any unflushed changes to the database. Throws: IllegalStateException - if isActive() is false RollbackException - if the commit fails Since: JPA 1.0

JPA Method in javax.persistence. EntityTransaction void begin () Start a resource transaction. Throws: IllegalStateException - if isActive() is true Since: JPA 1.0

JPA Method in javax.persistence. EntityTransaction boolean getRollbackOnly () Determine whether the current resource transaction has been marked for rollback. Return: boolean indicating whether the transaction has been marked for rollback Throws: IllegalStateException - if isActive() is false Since: JPA 1.0

JPA Method in javax.persistence. EntityTransaction void setRollbackOnly () Mark the current resource transaction so that the only possible outcome of the transaction is for the transaction to be rolled back. Throws: IllegalStateException - if isActive() is false Since: JPA 1.0

JPA Method in javax.persistence. EntityTransaction boolean isActive () Indicate whether a resource transaction is in progress. Return: boolean indicating whether transaction is in progress Throws: PersistenceException - if an unexpected error condition is encountered Since: JPA 1.0

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

JPA Method in javax.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

; javax.persistence.RollbackException Thrown by the persistence provider when () EntityTransaction .commit() fails. See Also: javax.persistence. EntityTransaction .commit () Since: JPA 1.0 Public Constructors

; import javax.persistence.EntityManagerFactory; import javax.persistence. EntityTransaction ; import javax ... .createEntityManager();   EntityTransaction trans = em.getTransaction();   //* block-1

.persistence. EntityTransaction $begin.call(Unknown Source) at app.database.ObjectDbDatabase.transact ... ) at javax.persistence. EntityTransaction $begin.call(Unknown Source) at app.database.ObjectDbDatabase

methodName ) {   javax.persistence. EntityTransaction et = em.getTransaction();   if ( et.isActive ... . EntityTransaction et = em.getTransaction();   javax.persistence.metamodel.ManagedType type = em.getMetamodel

.EntityManagerFactory; import javax.persistence. EntityTransaction ; import javax.persistence.Persistence; import com ... ;   EntityTransaction tx = em.getTransaction();       tx.begin();  

must throw the PessimisticLockException and ensure that the JTA transaction or EntityTransaction

PageTest { protected static EntityTransaction trans = SingleManager.getTrans(); protected static

.createEntityManager(); EntityTransaction tr = em.getTransaction(); Request r = new Request(); r.setUsername(null

() on a JPA EntityTransaction and I'm still getting the same error. Am I missing

(EntityManager em, Timeslot ts) { EntityTransaction transaction = em.getTransaction(); try { ArrayList

; EntityTransaction tx = em.getTransaction();     tx.begin();     em.merge(new

(); EntityTransaction trans = em.getTransaction(); trans.begin(); em.createQuery("DELETE FROM MyEntity

("PersistenceUnit"); EntityManager em2 = emf   .createEntityManager(); EntityTransaction tr = em2  

static boolean save(Object obj) {         EntityTransaction tr

"); } else { EntityTransaction t = em.getTransaction(); log_info($i, "em.transaction.isActive", t.isActive()); } } reset ... ) { log_warn($i, "AFTER: transaction is null!"); } else { EntityTransaction t = em.getTransaction(); log