Package bitronix.tm.resource.jdbc

Class JdbcPooledConnection

java.lang.Object

bitronix.tm.resource.common.AbstractXAStatefulHolder

bitronix.tm.resource.common.AbstractXAResourceHolder

bitronix.tm.resource.jdbc.JdbcPooledConnection

All Implemented Interfaces:

StateChangeListener, XAResourceHolder, XAStatefulHolder, JdbcPooledConnectionMBean

public class JdbcPooledConnection
extends AbstractXAResourceHolder
implements StateChangeListener, JdbcPooledConnectionMBean

Implementation of a JDBC pooled connection wrapping vendor's XAConnection implementation.

Author:

lorban, brettw

Field Summary

Fields inherited from interface bitronix.tm.resource.common.XAStatefulHolder

STATE_ACCESSIBLE, STATE_CLOSED, STATE_IN_POOL, STATE_NOT_ACCESSIBLE

Constructor Summary

Constructors

Constructor	Description
JdbcPooledConnection(PoolingDataSource poolingDataSource, XAConnection xaConnection)

Method Summary

Modifier and Type	Method	Description
void	close()	Close the physical connection that this XAStatefulHolder represents.
RecoveryXAResourceHolder	createRecoveryXAResourceHolder()
Date	getAcquisitionDate()
protected JdbcPreparedStatementHandle	getCachedStatement(JdbcPreparedStatementHandle stmt)	Get a PreparedStatement from cache.
Object	getConnectionHandle()	Create a disposable handler used to drive a pooled instance of XAStatefulHolder.
Date	getLastReleaseDate()	Get the date at which this object was last released to the pool.
PoolingDataSource	getPoolingDataSource()
ResourceBean	getResourceBean()	Get the ResourceBean which created this XAResourceHolder.
String	getStateDescription()
Collection	getTransactionGtridsCurrentlyHoldingThis()
XAConnection	getXaConnection()
XAResource	getXAResource()	Get the vendor's XAResource implementation of the wrapped resource.
List<XAResourceHolder>	getXAResourceHolders()	Get the list of XAResourceHolders created by this XAStatefulHolder that are still open.
protected JdbcPreparedStatementHandle	putCachedStatement(JdbcPreparedStatementHandle stmt)	Put a PreparedStatement in the cache.
protected Statement	registerUncachedStatement(Statement stmt)	Register uncached statement so that it can be closed when the connection is put back in the pool.
protected void	release()
void	stateChanged(XAStatefulHolder source, int oldState, int newState)	Fired when the internal state of a XAStatefulHolder has changed.
void	stateChanging(XAStatefulHolder source, int currentState, int futureState)	Fired before the internal state of a XAStatefulHolder has changed.
String	toString()
protected void	unregisterUncachedStatement(Statement stmt)

Methods inherited from class bitronix.tm.resource.common.AbstractXAResourceHolder

getXAResourceHolderStateGtrids, getXAResourceHolderStatesForGtrid, hasStateForXAResource, isParticipatingInActiveGlobalTransaction, putXAResourceHolderState, removeXAResourceHolderState

Methods inherited from class bitronix.tm.resource.common.AbstractXAStatefulHolder

addStateChangeEventListener, getState, removeStateChangeEventListener, setState

Methods inherited from class java.lang.Object

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

Methods inherited from interface bitronix.tm.resource.common.XAStatefulHolder

addStateChangeEventListener, getState, removeStateChangeEventListener, setState

Constructor Details

JdbcPooledConnection

public JdbcPooledConnection(PoolingDataSource poolingDataSource,
 XAConnection xaConnection)
                     throws SQLException

Throws:

SQLException

Method Details

close

public void close()
           throws SQLException

Description copied from interface: XAStatefulHolder

Close the physical connection that this XAStatefulHolder represents.

Specified by:

close in interface XAStatefulHolder

Throws:

SQLException

createRecoveryXAResourceHolder

public RecoveryXAResourceHolder createRecoveryXAResourceHolder()

release

protected void release()
                throws SQLException

Throws:

SQLException

getXAResource

public XAResource getXAResource()

Description copied from interface: XAResourceHolder

Get the vendor's XAResource implementation of the wrapped resource.

Specified by:

getXAResource in interface XAResourceHolder

Returns:

the vendor's XAResource implementation.

getResourceBean

public ResourceBean getResourceBean()

Description copied from interface: XAResourceHolder

Get the ResourceBean which created this XAResourceHolder.

Specified by:

getResourceBean in interface XAResourceHolder

Returns:

the ResourceBean which created this XAResourceHolder.

getPoolingDataSource

public PoolingDataSource getPoolingDataSource()

getXAResourceHolders

public List<XAResourceHolder> getXAResourceHolders()

Description copied from interface: XAStatefulHolder

Get the list of XAResourceHolders created by this XAStatefulHolder that are still open.

This method is thread-safe.

Specified by:

getXAResourceHolders in interface XAStatefulHolder

Returns:

the list of XAResourceHolders created by this XAStatefulHolder that are still open.

getConnectionHandle

public Object getConnectionHandle()
                           throws Exception

Description copied from interface: XAStatefulHolder

Create a disposable handler used to drive a pooled instance of XAStatefulHolder.

This method is thread-safe.

Specified by:

getConnectionHandle in interface XAStatefulHolder

Returns:

a resource-specific disaposable connection object.

Throws:

Exception - a resource-specific exception thrown when the disaposable connection cannot be created.

stateChanged

public void stateChanged(XAStatefulHolder source,
 int oldState,
 int newState)

Description copied from interface: StateChangeListener

Fired when the internal state of a XAStatefulHolder has changed.

Specified by:

stateChanged in interface StateChangeListener

Parameters:

source - the XAStatefulHolder changing state.

oldState - the old state of the XAStatefulHolder.

newState - the new state of the XAStatefulHolder.

stateChanging

public void stateChanging(XAStatefulHolder source,
 int currentState,
 int futureState)

Description copied from interface: StateChangeListener

Fired before the internal state of a XAStatefulHolder has changed.

Specified by:

stateChanging in interface StateChangeListener

Parameters:

source - the XAStatefulHolder changing state.

currentState - the current state of the XAStatefulHolder.

futureState - the future state of the XAStatefulHolder.

getCachedStatement

protected JdbcPreparedStatementHandle getCachedStatement(JdbcPreparedStatementHandle stmt)

Get a PreparedStatement from cache.

Parameters:

stmt - the key that has been used to cache the statement.

Returns:

the cached statement corresponding to the key or null if no statement is cached under that key.

putCachedStatement

protected JdbcPreparedStatementHandle putCachedStatement(JdbcPreparedStatementHandle stmt)

Put a PreparedStatement in the cache.

Parameters:

stmt - the statement to cache.

Returns:

the cached statement.

registerUncachedStatement

protected Statement registerUncachedStatement(Statement stmt)

Register uncached statement so that it can be closed when the connection is put back in the pool.

Parameters:

stmt - the statement to register.

Returns:

the registered statement.

unregisterUncachedStatement

protected void unregisterUncachedStatement(Statement stmt)

toString

public String toString()

Overrides:

toString in class Object

getStateDescription

public String getStateDescription()

Specified by:

getStateDescription in interface JdbcPooledConnectionMBean

getAcquisitionDate

public Date getAcquisitionDate()

Specified by:

getAcquisitionDate in interface JdbcPooledConnectionMBean

getLastReleaseDate

public Date getLastReleaseDate()

Description copied from interface: XAStatefulHolder

Get the date at which this object was last released to the pool. This is required to check if it is eligible for discard when the containing pool needs to shrink.

Specified by:

getLastReleaseDate in interface XAStatefulHolder

Returns:

the date at which this object was last released to the pool or null if it never left the pool.

getTransactionGtridsCurrentlyHoldingThis

public Collection getTransactionGtridsCurrentlyHoldingThis()

Specified by:

getTransactionGtridsCurrentlyHoldingThis in interface JdbcPooledConnectionMBean

getXaConnection

public XAConnection getXaConnection()