org.eclipse.persistence.internal.jpa.transaction

Class EntityTransactionImpl

java.lang.Object

org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl

public class EntityTransactionImpl
extends java.lang.Object

JDK 1.5 version of the EntityTransaction. Differs from base version only in that it takes a JDK 1.5 version of the EntityTransactionWrapper.

See Also:

EntityTransactionImpl

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	active
protected org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.TransactionFinalizer	finalizer
static boolean	isFinalizedRequired PERF: Avoid finalization if not required by the application, and finalizers have major concurrency affects.
protected java.util.WeakHashMap<QueryImpl,QueryImpl>	openQueriesMap Keep a weak reference to the open queries that are executed in this entity manager.
protected boolean	rollbackOnly
protected EntityTransactionWrapper	wrapper

Constructor Summary

Constructors

Constructor and Description
EntityTransactionImpl(EntityTransactionWrapper wrapper)

Method Summary

Modifier and Type	Method and Description
void	addOpenQuery(QueryImpl query) Queries that leave the connection and are executed against this entity manager will be added here.
void	begin() Start the current transaction.
protected void	closeOpenQueries() Open queries within a transaction will be closed on commit or rollback if they haven't already been closed.
void	commit() Commit the current transaction, writing any un-flushed changes to the database.
protected java.util.Map<QueryImpl,QueryImpl>	getOpenQueriesMap() Return the weak reference to the open queries.
boolean	getRollbackOnly() Determine whether the current transaction has been marked for rollback.
boolean	isActive() Check to see if the current transaction is in progress.
void	rollback() Roll back the current transaction, discarding any changes that have happened in this transaction.
void	setRollbackOnly() Mark the current transaction so that the only possible outcome of the transaction is for the transaction to be rolled back.

Methods inherited from class java.lang.Object

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

Field Detail

openQueriesMap

protected java.util.WeakHashMap<QueryImpl,QueryImpl> openQueriesMap

Keep a weak reference to the open queries that are executed in this entity manager.

wrapper

protected EntityTransactionWrapper wrapper

active

protected boolean active

rollbackOnly

protected boolean rollbackOnly

finalizer

protected org.eclipse.persistence.internal.jpa.transaction.EntityTransactionImpl.TransactionFinalizer finalizer

isFinalizedRequired

public static boolean isFinalizedRequired

PERF: Avoid finalization if not required by the application, and finalizers have major concurrency affects.

Constructor Detail

EntityTransactionImpl

public EntityTransactionImpl(EntityTransactionWrapper wrapper)

Method Detail

addOpenQuery

public void addOpenQuery(QueryImpl query)

Queries that leave the connection and are executed against this entity manager will be added here. On rollback or commit any left over open queries should be closed.

Parameters:

query -

begin

public void begin()

Start the current transaction. This can only be invoked if isActive() returns false.

Throws:

java.lang.IllegalStateException - if isActive() is true.

closeOpenQueries

protected void closeOpenQueries()

Open queries within a transaction will be closed on commit or rollback if they haven't already been closed.

commit

public void commit()

Commit the current transaction, writing any un-flushed changes to the database. This can only be invoked if isActive() returns true.

Throws:

java.lang.IllegalStateException - if isActive() is false.

rollback

public void rollback()

Roll back the current transaction, discarding any changes that have happened in this transaction. This can only be invoked if isActive() returns true.

Throws:

java.lang.IllegalStateException - if isActive() is false.

setRollbackOnly

public void setRollbackOnly()

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

Throws:

java.lang.IllegalStateException - if isActive() is false.

getOpenQueriesMap

protected java.util.Map<QueryImpl,QueryImpl> getOpenQueriesMap()

Return the weak reference to the open queries.

getRollbackOnly

public boolean getRollbackOnly()

Determine whether the current transaction has been marked for rollback.

Throws:

java.lang.IllegalStateException - if isActive() is false.

isActive

public boolean isActive()

Check to see if the current transaction is in progress.