javax.persistence

Interface EntityTransaction

public interface EntityTransaction

The EntityTransaction interface is used to control resource transactions on resource-local entity managers. The EntityManager.getTransaction() method returns the EntityTransaction interface.

Author:

Emmanuel Bernard

Method Summary

Methods

Modifier and Type	Method and Description
void	begin() Start a resource transaction.
void	commit() Commit the current transaction, writing any unflushed changes to the database.
boolean	getRollbackOnly() Determine whether the current transaction has been marked for rollback.
boolean	isActive() Indicate whether a transaction is in progress.
void	rollback() Roll back the current transaction.
void	setRollbackOnly() Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Method Detail

begin

void begin()

Start a resource transaction.

Throws:

IllegalStateException - if isActive() is true.

commit

void commit()

Commit the current transaction, writing any unflushed changes to the database.

Throws:

IllegalStateException - if isActive() is false.

RollbackException - if the commit fails.

rollback

void rollback()

Roll back the current transaction.

Throws:

IllegalStateException - if isActive() is false.

PersistenceException - if an unexpected error condition is encountered.

setRollbackOnly

void setRollbackOnly()

Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Throws:

IllegalStateException - if isActive() is false.

getRollbackOnly

boolean getRollbackOnly()

Determine whether the current transaction has been marked for rollback.

Throws:

IllegalStateException - if isActive() is false.

isActive

boolean isActive()

Indicate whether a transaction is in progress.

Throws:

PersistenceException - if an unexpected error condition is encountered.