org.eclipse.persistence.internal.jpa.transaction

Class EntityTransactionWrapper

java.lang.Object

org.eclipse.persistence.internal.jpa.transaction.TransactionWrapperImpl

org.eclipse.persistence.internal.jpa.transaction.EntityTransactionWrapper

All Implemented Interfaces:

TransactionWrapper

public class EntityTransactionWrapper
extends TransactionWrapperImpl
implements TransactionWrapper

INTERNAL: JDK 1.5 specific version of EntityTransactionWrapper. Differs from the JDK 1.4 version in that it implements a different version of the TransactionWrapper interface, uses a different EntityManager, and returns a different EntityTransaction version.

See Also:

EntityTransactionWrapper

Constructor Summary

Constructors

Constructor and Description
EntityTransactionWrapper(EntityManagerImpl entityManager)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	checkForTransaction(boolean validateExistence) INTERNAL: This method will be used to check for a transaction and throws exception if none exists.
EntityManagerImpl	getEntityManager()
javax.persistence.EntityTransaction	getTransaction() Lazy initialize the EntityTransaction.
void	registerUnitOfWorkWithTxn(UnitOfWorkImpl uow)
void	setRollbackOnlyInternal() Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.
boolean	shouldFlushBeforeQuery(UnitOfWorkImpl uow) This method will be called when a query is executed.
void	verifyRegisterUnitOfWorkWithTxn()

Methods inherited from class org.eclipse.persistence.internal.jpa.transaction.TransactionWrapperImpl

clear, getLocalUnitOfWork, setLocalUnitOfWork

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EntityTransactionWrapper

public EntityTransactionWrapper(EntityManagerImpl entityManager)

Method Detail

checkForTransaction

public java.lang.Object checkForTransaction(boolean validateExistence)

INTERNAL: This method will be used to check for a transaction and throws exception if none exists. If this method returns without exception then a transaction exists. This method must be called before accessing the localUOW.

Specified by:

checkForTransaction in class TransactionWrapperImpl

getEntityManager

public EntityManagerImpl getEntityManager()

getTransaction

public javax.persistence.EntityTransaction getTransaction()

Lazy initialize the EntityTransaction. There can only be one EntityTransaction at a time.

Specified by:

getTransaction in interface TransactionWrapper

registerUnitOfWorkWithTxn

public void registerUnitOfWorkWithTxn(UnitOfWorkImpl uow)

Specified by:

registerUnitOfWorkWithTxn in class TransactionWrapperImpl

verifyRegisterUnitOfWorkWithTxn

public void verifyRegisterUnitOfWorkWithTxn()

Specified by:

verifyRegisterUnitOfWorkWithTxn in class TransactionWrapperImpl

setRollbackOnlyInternal

public void setRollbackOnlyInternal()

Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back. This is an internal method and if the txn is not active will do nothing

Specified by:

setRollbackOnlyInternal in class TransactionWrapperImpl

shouldFlushBeforeQuery

public boolean shouldFlushBeforeQuery(UnitOfWorkImpl uow)

Description copied from class: TransactionWrapperImpl

This method will be called when a query is executed. If changes in the entity manager should be flushed this method should return true

Specified by:

shouldFlushBeforeQuery in class TransactionWrapperImpl