org.apache.ojb.broker.core
Class PersistenceBrokerFactoryBaseImpl

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

All Implemented Interfaces:

org.apache.ojb.broker.util.configuration.Configurable, PersistenceBrokerFactoryIF

Direct Known Subclasses:

PersistenceBrokerFactoryDefaultImpl

public class PersistenceBrokerFactoryBaseImpl

extends java.lang.Object

implements PersistenceBrokerFactoryIF

This is an base implementation of the PersistenceBrokerFactoryIF interface. Each request (PersistenceBrokerFactoryIF.createPersistenceBroker(org.apache.ojb.broker.PBKey) or PersistenceBrokerFactoryIF.defaultPersistenceBroker() call) creates a new PersistenceBroker instance. No pooling of broker instances is used.

Version:

$Id: PersistenceBrokerFactoryBaseImpl.java 365232 2005-12-21 22:36:07Z tomdz $

Author:

Thomas Mahler, Armin Waibel

See Also:

PersistenceBrokerFactoryDefaultImpl

Constructor Summary

PersistenceBrokerFactoryBaseImpl()

Method Summary

int	activePersistenceBroker() Not implemented!
void	configure(org.apache.ojb.broker.util.configuration.Configuration config)
PersistenceBrokerInternal	createPersistenceBroker(PBKey pbKey) Always return a new created PersistenceBroker instance
PersistenceBrokerInternal	createPersistenceBroker(java.lang.String jcdAlias, java.lang.String user, java.lang.String password) Return a ready for action PersistenceBroker instance.
PersistenceBrokerInternal	defaultPersistenceBroker() Return a default broker instance, specified in configuration or set using setDefaultKey(org.apache.ojb.broker.PBKey).
PBKey	getDefaultKey() Get the default PBKey.
void	releaseAllInstances() release all broker instances pooled by the factory.
void	setDefaultKey(PBKey key) Set the PBKey used for convinience PersistenceBroker lookup method defaultPersistenceBroker().
void	shutdown() Shutdown method for OJB, kills all running processes within OJB - after shutdown OJB can no longer be used.

Methods inherited from class java.lang.Object

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

Constructor Detail

PersistenceBrokerFactoryBaseImpl

public PersistenceBrokerFactoryBaseImpl()

Method Detail

setDefaultKey

public void setDefaultKey(PBKey key)

Description copied from interface: PersistenceBrokerFactoryIF

Set the PBKey used for convinience PersistenceBroker lookup method PersistenceBrokerFactoryIF.defaultPersistenceBroker().
Note: It's only allowed to set the default PBKey once. All further calls will cause an exception. If a default JdbcConnectionDescriptor was declared in configuration file, OJB will set the declared PBKey as default.
This method is convenience for MetadataManager.setDefaultPBKey(org.apache.ojb.broker.PBKey).

Specified by:

setDefaultKey in interface PersistenceBrokerFactoryIF

See Also:

PersistenceBrokerFactoryIF.setDefaultKey(org.apache.ojb.broker.PBKey)

getDefaultKey

public PBKey getDefaultKey()

Description copied from interface: PersistenceBrokerFactoryIF

Get the default PBKey. This method is convenience for MetadataManager.getDefaultPBKey().

Specified by:

getDefaultKey in interface PersistenceBrokerFactoryIF

See Also:

PersistenceBrokerFactoryIF.getDefaultKey()

createPersistenceBroker

public PersistenceBrokerInternal createPersistenceBroker(PBKey pbKey)
                                                  throws PBFactoryException

Always return a new created PersistenceBroker instance

Specified by:

createPersistenceBroker in interface PersistenceBrokerFactoryIF

Parameters:

pbKey -

Returns:

Throws:

PBFactoryException

createPersistenceBroker

public PersistenceBrokerInternal createPersistenceBroker(java.lang.String jcdAlias,
                                                         java.lang.String user,
                                                         java.lang.String password)
                                                  throws PBFactoryException

Description copied from interface: PersistenceBrokerFactoryIF

Return a ready for action PersistenceBroker instance.

Specified by:

createPersistenceBroker in interface PersistenceBrokerFactoryIF

Parameters:

jcdAlias - An jcdAlias name specified in a jdbc-connection-descriptor

user - user name specified in a jdbc-connection-descriptor

password - valid password specified in a jdbc-connection-descriptor

Throws:

PBFactoryException

See Also:

PersistenceBrokerFactoryIF.createPersistenceBroker( String jcdAlias, String user, String password)

defaultPersistenceBroker

public PersistenceBrokerInternal defaultPersistenceBroker()
                                                   throws PBFactoryException

Description copied from interface: PersistenceBrokerFactoryIF

Return a default broker instance, specified in configuration or set using PersistenceBrokerFactoryIF.setDefaultKey(org.apache.ojb.broker.PBKey).

Specified by:

defaultPersistenceBroker in interface PersistenceBrokerFactoryIF

Throws:

PBFactoryException

See Also:

PersistenceBrokerFactoryIF.createPersistenceBroker(PBKey key)

configure

public void configure(org.apache.ojb.broker.util.configuration.Configuration config)
               throws org.apache.ojb.broker.util.configuration.ConfigurationException

Specified by:

configure in interface org.apache.ojb.broker.util.configuration.Configurable

Throws:

org.apache.ojb.broker.util.configuration.ConfigurationException

releaseAllInstances

public void releaseAllInstances()

Description copied from interface: PersistenceBrokerFactoryIF

release all broker instances pooled by the factory. each broker instance is closed before release.

Specified by:

releaseAllInstances in interface PersistenceBrokerFactoryIF

See Also:

PersistenceBrokerFactoryIF.releaseAllInstances()

activePersistenceBroker

public int activePersistenceBroker()

Not implemented!

Specified by:

activePersistenceBroker in interface PersistenceBrokerFactoryIF

Returns:

always 0

shutdown

public void shutdown()

Description copied from interface: PersistenceBrokerFactoryIF

Shutdown method for OJB, kills all running processes within OJB - after shutdown OJB can no longer be used.
This method is introduced to solve hot/redeployment problems (memory leaks) caused by the usage of ThreadLocal instances in OJB source and the reuse of threads by the container (e.g. servlet- or ejb-container).

Specified by:

shutdown in interface PersistenceBrokerFactoryIF