org.apache.ojb.broker.core
Class PersistenceBrokerFactorySyncImpl

java.lang.Object
  org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl
      org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl
          org.apache.ojb.broker.core.PersistenceBrokerFactorySyncImpl

All Implemented Interfaces:

PersistenceBrokerFactoryIF, Configurable

public class PersistenceBrokerFactorySyncImpl
extends PersistenceBrokerFactoryDefaultImpl

Workaround for participate the PB-api in JTA transaction by implementing the Synchronization interface.
This may will be deprecated when we implemented a full JCA compliant connector.
When a new PersistenceBroker instance is created in method wrapBrokerWithPoolingHandle(org.apache.ojb.broker.PersistenceBrokerInternal, org.apache.commons.pool.KeyedObjectPool) the given PB instance is wrapped with PersistenceBrokerFactorySyncImpl.PersistenceBrokerSyncImpl before it was put to the PB-pool. When a PB instance was requested class try to lookup the current JTA transaction in wrapRequestedBrokerInstance(org.apache.ojb.broker.PersistenceBrokerInternal) before the pooled PB instance was wrapped with the PB handle. If a running tx was found the PB instance was registered with the transaction using the Synchronization interface.

Version:

$Id: PersistenceBrokerFactorySyncImpl.java,v 1.1 2007-08-24 22:17:35 ewestfal Exp $

Author:

Armin Waibel

Nested Class Summary

static class

PersistenceBrokerFactorySyncImpl.PersistenceBrokerSyncImpl

Constructor Summary

PersistenceBrokerFactorySyncImpl()

Method Summary

PersistenceBrokerInternal	createPersistenceBroker(PBKey pbKey) Return broker instance from pool.
protected PersistenceBrokerInternal	wrapBrokerWithPoolingHandle(PersistenceBrokerInternal broker, org.apache.commons.pool.KeyedObjectPool pool) Each real pooled PersistenceBroker instance was wrapped by a pooling handle when a new instance was created.
protected PersistenceBrokerInternal	wrapRequestedBrokerInstance(PersistenceBrokerInternal broker) Wraps the requested pooled broker instance.

Methods inherited from class org.apache.ojb.broker.core.PersistenceBrokerFactoryDefaultImpl

activePersistenceBroker, getPoolConfiguration, releaseAllInstances, setPoolConfiguration, shutdown

Methods inherited from class org.apache.ojb.broker.core.PersistenceBrokerFactoryBaseImpl

configure, createNewBrokerInstance, createPersistenceBroker, defaultPersistenceBroker, getDefaultKey, setDefaultKey

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceBrokerFactorySyncImpl

public PersistenceBrokerFactorySyncImpl()

Method Detail

createPersistenceBroker

public PersistenceBrokerInternal createPersistenceBroker(PBKey pbKey)
                                                  throws PBFactoryException

Description copied from class: PersistenceBrokerFactoryDefaultImpl

Return broker instance from pool. If given PBKey was not found in pool a new pool for given

Specified by:

createPersistenceBroker in interface PersistenceBrokerFactoryIF

Overrides:

createPersistenceBroker in class PersistenceBrokerFactoryDefaultImpl

Throws:

PBFactoryException

wrapBrokerWithPoolingHandle

protected PersistenceBrokerInternal wrapBrokerWithPoolingHandle(PersistenceBrokerInternal broker,
                                                                org.apache.commons.pool.KeyedObjectPool pool)

Description copied from class: PersistenceBrokerFactoryDefaultImpl

Each real pooled PersistenceBroker instance was wrapped by a pooling handle when a new instance was created.

Overrides:

wrapBrokerWithPoolingHandle in class PersistenceBrokerFactoryDefaultImpl

Parameters:

broker - real PersistenceBroker instance

pool - use KeyedObjectPool

Returns:

wrapped broker instance

See Also:

PoolablePersistenceBroker

wrapRequestedBrokerInstance

protected PersistenceBrokerInternal wrapRequestedBrokerInstance(PersistenceBrokerInternal broker)

Description copied from class: PersistenceBrokerFactoryDefaultImpl

Wraps the requested pooled broker instance. The returned handle warps a pooled broker instance to avoid corruption of already closed broker instances.

Overrides:

wrapRequestedBrokerInstance in class PersistenceBrokerFactoryDefaultImpl

Returns:

The broker handle.

See Also:

PersistenceBrokerHandle