org.apache.deltaspike.jpa.impl.transaction.context

Class TransactionBeanStorage

java.lang.Object

org.apache.deltaspike.jpa.impl.transaction.context.TransactionBeanStorage

public class TransactionBeanStorage
extends Object

This class stores information about @TransactionScoped contextual instances, their CreationalContext etc.

We use a RequestScoped bean because this way we don't need to take care about cleaning up any ThreadLocals ourselves. This also makes sure that we subsequently destroy any left over TransactionScoped beans (which should not happen, but who knows). We also don't need to do any fancy synchronization stuff since we are sure that we are always in the same Thread.

Method Summary

Methods

Modifier and Type	Method and Description
void	cleanUsedEntityManagers()
static void	close()
int	decrementRefCounter() Decrement the reference counter and return the layer.
void	endTransactionScope() End the TransactionScope with the given qualifier.
Map<javax.enterprise.context.spi.Contextual,TransactionBeanEntry>	getActiveTransactionContext()
static TransactionBeanStorage	getInstance()
Set<EntityManagerEntry>	getUsedEntityManagerEntries()
int	incrementRefCounter() Increment the ref counter and return the old value.
boolean	isEmpty()
static boolean	isOpen()
void	startTransactionScope() Start a new TransactionScope
void	storeUsedEntityManager(EntityManagerEntry entityManagerEntry)

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static TransactionBeanStorage getInstance()

close

public static void close()

isOpen

public static boolean isOpen()

incrementRefCounter

public int incrementRefCounter()

Increment the ref counter and return the old value. Must only be called if the bean storage is not isEmpty().

Returns:

the the previous values of the refCounters. If 0 then we are 'outermost'

decrementRefCounter

public int decrementRefCounter()

Decrement the reference counter and return the layer.

Returns:

the layer number. 0 represents the outermost interceptor for the qualifier

isEmpty

public boolean isEmpty()

Returns:

true if we are the outermost interceptor over all qualifiers and the TransactionBeanStorage is yet empty.

startTransactionScope

public void startTransactionScope()

Start a new TransactionScope

endTransactionScope

public void endTransactionScope()

End the TransactionScope with the given qualifier. This will subsequently destroy all beans which are stored in the context. This method only gets used if we leave a transaction with REQUIRES_NEW.

storeUsedEntityManager

public void storeUsedEntityManager(EntityManagerEntry entityManagerEntry)

getUsedEntityManagerEntries

public Set<EntityManagerEntry> getUsedEntityManagerEntries()

cleanUsedEntityManagers

public void cleanUsedEntityManagers()

getActiveTransactionContext

public Map<javax.enterprise.context.spi.Contextual,TransactionBeanEntry> getActiveTransactionContext()

Returns:

the Map which represents the currently active Context content.