Package bitronix.tm.resource.jdbc

Class PoolingDataSource

java.lang.Object

bitronix.tm.resource.common.ResourceBean

bitronix.tm.resource.jdbc.PoolingDataSource

All Implemented Interfaces:

XAResourceProducer, PoolingDataSourceMBean, Serializable, Wrapper, Referenceable, CommonDataSource, DataSource

public class PoolingDataSource
extends ResourceBean
implements DataSource, XAResourceProducer, PoolingDataSourceMBean

Implementation of a JDBC DataSource wrapping vendor's XADataSource implementation.

Author:

lorban, brettw

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
PoolingDataSource()
PoolingDataSource(Object... factoryConstructorArgs)

Method Summary

Modifier and Type	Method	Description
void	addConnectionCustomizer(ConnectionCustomizer connectionCustomizer)
void	close()	Release this XAResourceProducer's internal resources.
XAStatefulHolder	createPooledConnection(Object xaFactory, ResourceBean bean)	Create a XAStatefulHolder that will be placed in an XAPool.
void	endRecovery()	Release internal resources held after call to startRecovery().
XAResourceHolder	findXAResourceHolder(XAResource xaResource)	Find in the XAResourceHolders created by this XAResourceProducer the one which this XAResource belongs to.
Connection	getConnection()
Connection	getConnection(String username, String password)
String	getCursorHoldability()
long	getInPoolSize()
String	getIsolationLevel()
String	getLocalAutoCommit()
int	getLoginTimeout()
PrintWriter	getLogWriter()
Logger	getParentLogger()
int	getPreparedStatementCacheSize()
Reference	getReference()	PoolingDataSource must alway have a unique name so this method builds a reference to this object using the unique name as RefAddr.
String	getTestQuery()
long	getTotalPoolSize()
void	init()	Initializes the pool by creating the initial amount of connections.
boolean	isEnableJdbc4ConnectionTest()
boolean	isFailed()
boolean	isWrapperFor(Class<?> iface)
void	removeConnectionCustomizer(ConnectionCustomizer connectionCustomizer)
void	reset()
void	setCursorHoldability(String cursorHoldability)	Set the default cursor holdability for connections.
void	setEnableJdbc4ConnectionTest(boolean enableJdbc4ConnectionTest)	When set and the underlying JDBC driver supports JDBC 4 isValid(), a Connection.isValid() call is performed to test the connection before handing it to the caller.
void	setFailed(boolean failed)	Mark this resource producer as failed or not.
void	setIsolationLevel(String isolationLevel)	Set the default isolation level for connections.
void	setLocalAutoCommit(String localAutoCommit)	Set the default local transactions autocommit mode.
void	setLoginTimeout(int seconds)
void	setLogWriter(PrintWriter out)
void	setPreparedStatementCacheSize(int preparedStatementCacheSize)	Set the target maximum size of the prepared statement cache.
void	setTestQuery(String testQuery)	When set, the specified query will be executed on the connection acquired from the pool before being handed to the caller.
XAResourceHolderState	startRecovery()	Prepare the recoverable XAResource producer for recovery.
String	toString()
<T> T	unwrap(Class<T> iface)

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

getAcquireIncrement, getAcquisitionInterval, getAcquisitionTimeout, getAllowLocalTransactions, getApplyTransactionTimeout, getAutomaticEnlistingEnabled, getClassName, getDeferConnectionRelease, getDriverProperties, getIgnoreRecoveryFailures, getMaxIdleTime, getMaxPoolSize, getMinPoolSize, getShareTransactionConnections, getTwoPcOrderingPosition, getUniqueName, getUseTmJoin, incCreatedResourcesCounter, isDisabled, setAcquireIncrement, setAcquisitionInterval, setAcquisitionTimeout, setAllowLocalTransactions, setApplyTransactionTimeout, setAutomaticEnlistingEnabled, setClassName, setDeferConnectionRelease, setDisabled, setDriverProperties, setIgnoreRecoveryFailures, setMaxIdleTime, setMaxPoolSize, setMinPoolSize, setShareTransactionConnections, setTwoPcOrderingPosition, setUniqueName, setUseTmJoin

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.sql.CommonDataSource

createShardingKeyBuilder

Methods inherited from interface javax.sql.DataSource

createConnectionBuilder

Methods inherited from interface bitronix.tm.resource.jdbc.PoolingDataSourceMBean

getMaxPoolSize, getMinPoolSize, isDisabled, setDisabled

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

getUniqueName

Constructor Details

PoolingDataSource

public PoolingDataSource()

PoolingDataSource

public PoolingDataSource(Object... factoryConstructorArgs)

Method Details

init

public void init()

Initializes the pool by creating the initial amount of connections.

Specified by:

init in interface XAResourceProducer

getTestQuery

public String getTestQuery()

Returns:

the query that will be used to test connections.

setTestQuery

public void setTestQuery(String testQuery)

When set, the specified query will be executed on the connection acquired from the pool before being handed to the caller. The connections won't be tested when not set. Default value is null.

Parameters:

testQuery - the query that will be used to test connections.

setEnableJdbc4ConnectionTest

public void setEnableJdbc4ConnectionTest(boolean enableJdbc4ConnectionTest)

When set and the underlying JDBC driver supports JDBC 4 isValid(), a Connection.isValid() call is performed to test the connection before handing it to the caller. If both testQuery and enableJdbc4ConnectionTest are set, enableJdbc4ConnectionTest takes precedence.

Parameters:

enableJdbc4ConnectionTest - true if JDBC 4 isValid() testing should be performed, false otherwise.

isEnableJdbc4ConnectionTest

public boolean isEnableJdbc4ConnectionTest()

Returns:

true if JDBC 4 isValid() testing should be performed, false otherwise.

getPreparedStatementCacheSize

public int getPreparedStatementCacheSize()

Returns:

the target maximum prepared statement cache size.

setPreparedStatementCacheSize

public void setPreparedStatementCacheSize(int preparedStatementCacheSize)

Set the target maximum size of the prepared statement cache. In reality under certain unusual conditions the cache may temporarily drift higher in size.

Parameters:

preparedStatementCacheSize - the target maximum prepared statement cache size.

getIsolationLevel

public String getIsolationLevel()

Returns:

the default isolation level.

setIsolationLevel

public void setIsolationLevel(String isolationLevel)

Set the default isolation level for connections.

Parameters:

isolationLevel - the default isolation level.

getCursorHoldability

public String getCursorHoldability()

Returns:

cursorHoldability the default cursor holdability.

setCursorHoldability

public void setCursorHoldability(String cursorHoldability)

Set the default cursor holdability for connections.

Parameters:

cursorHoldability - the default cursor holdability.

getLocalAutoCommit

public String getLocalAutoCommit()

Returns:

localAutoCommit the default local transactions autocommit mode.

setLocalAutoCommit

public void setLocalAutoCommit(String localAutoCommit)

Set the default local transactions autocommit mode.

Parameters:

localAutoCommit - the default local transactions autocommit mode.

addConnectionCustomizer

public void addConnectionCustomizer(ConnectionCustomizer connectionCustomizer)

removeConnectionCustomizer

public void removeConnectionCustomizer(ConnectionCustomizer connectionCustomizer)

getConnection

public Connection getConnection()
                         throws SQLException

Specified by:

getConnection in interface DataSource

Throws:

SQLException

getConnection

public Connection getConnection(String username,
 String password)
                         throws SQLException

Specified by:

getConnection in interface DataSource

Throws:

SQLException

toString

public String toString()

Overrides:

toString in class Object

startRecovery

public XAResourceHolderState startRecovery()
                                    throws RecoveryException

Description copied from interface: XAResourceProducer

Prepare the recoverable XAResource producer for recovery.

Specified by:

startRecovery in interface XAResourceProducer

Returns:

a XAResourceHolderState object that can be used to call recover().

Throws:

RecoveryException - thrown when a XAResourceHolderState cannot be acquired.

endRecovery

public void endRecovery()
                 throws RecoveryException

Description copied from interface: XAResourceProducer

Release internal resources held after call to startRecovery().

Specified by:

endRecovery in interface XAResourceProducer

Throws:

RecoveryException - thrown when an error occured while releasing reserved resources.

setFailed

public void setFailed(boolean failed)

Description copied from interface: XAResourceProducer

Mark this resource producer as failed or not. A resource is considered failed if recovery fails to run on it.

Specified by:

setFailed in interface XAResourceProducer

Parameters:

failed - true is the resource must be considered failed, false it it must be considered sane.

isFailed

public boolean isFailed()

Specified by:

isFailed in interface PoolingDataSourceMBean

close

public void close()

Description copied from interface: XAResourceProducer

Release this XAResourceProducer's internal resources.

Specified by:

close in interface XAResourceProducer

createPooledConnection

public XAStatefulHolder createPooledConnection(Object xaFactory,
 ResourceBean bean)
                                        throws Exception

Description copied from interface: XAResourceProducer

Create a XAStatefulHolder that will be placed in an XAPool.

Specified by:

createPooledConnection in interface XAResourceProducer

Parameters:

xaFactory - the vendor's resource-specific XA factory.

bean - the resource-specific bean describing the resource parameters.

Returns:

a XAStatefulHolder that will be placed in an XAPool.

Throws:

Exception - thrown when the XAStatefulHolder cannot be created.

findXAResourceHolder

public XAResourceHolder findXAResourceHolder(XAResource xaResource)

Description copied from interface: XAResourceProducer

Find in the XAResourceHolders created by this XAResourceProducer the one which this XAResource belongs to.

Specified by:

findXAResourceHolder in interface XAResourceProducer

Parameters:

xaResource - the XAResource to look for.

Returns:

the associated XAResourceHolder or null if the XAResource does not belong to this XAResourceProducer.

getReference

public Reference getReference()
                       throws NamingException

PoolingDataSource must alway have a unique name so this method builds a reference to this object using the unique name as RefAddr.

Specified by:

getReference in interface Referenceable

Returns:

a reference to this PoolingDataSource.

Throws:

NamingException

getLoginTimeout

public int getLoginTimeout()
                    throws SQLException

Specified by:

getLoginTimeout in interface CommonDataSource

Specified by:

getLoginTimeout in interface DataSource

Throws:

SQLException

getParentLogger

public Logger getParentLogger()
                       throws SQLFeatureNotSupportedException

Specified by:

getParentLogger in interface CommonDataSource

Throws:

SQLFeatureNotSupportedException

setLoginTimeout

public void setLoginTimeout(int seconds)
                     throws SQLException

Specified by:

setLoginTimeout in interface CommonDataSource

Specified by:

setLoginTimeout in interface DataSource

Throws:

SQLException

getLogWriter

public PrintWriter getLogWriter()
                         throws SQLException

Specified by:

getLogWriter in interface CommonDataSource

Specified by:

getLogWriter in interface DataSource

Throws:

SQLException

setLogWriter

public void setLogWriter(PrintWriter out)
                  throws SQLException

Specified by:

setLogWriter in interface CommonDataSource

Specified by:

setLogWriter in interface DataSource

Throws:

SQLException

isWrapperFor

public boolean isWrapperFor(Class<?> iface)
                     throws SQLException

Specified by:

isWrapperFor in interface Wrapper

Throws:

SQLException

unwrap

public <T> T unwrap(Class<T> iface)
             throws SQLException

Specified by:

unwrap in interface Wrapper

Throws:

SQLException

getInPoolSize

public long getInPoolSize()

Specified by:

getInPoolSize in interface PoolingDataSourceMBean

getTotalPoolSize

public long getTotalPoolSize()

Specified by:

getTotalPoolSize in interface PoolingDataSourceMBean

reset

public void reset()
           throws Exception

Specified by:

reset in interface PoolingDataSourceMBean

Throws:

Exception