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Java Source Code / Java Documentation » ERP CRM Financial » SourceTap CRM » org.ofbiz.minerva.pool.jdbc.xa

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.ofbiz.minerva.pool .PoolObjectFactory

org.ofbiz.minerva.pool.jdbc.xa .XAConnectionFactory

XAConnectionFactory

public class XAConnectionFactory extends PoolObjectFactory (Code)

Object factory for JDBC 2.0 standard extension XAConnections. You pool the XAConnections instead of the java.sql.Connections since with vendor conformant drivers, you don't have direct access to the java.sql.Connection, and any work done isn't associated with the java.sql.Connection anyway.

Note: This implementation requires that the TransactionManager be bound to a JNDI name.

Note: This implementation has special handling for Minerva JDBC 1/2 XA Wrappers. Namely, when a request comes in, if it is for a wrapper connection and it has the same current transaction as a previous active connection, the same previous connection will be returned. Otherwise, you won't be able to share changes across connections like you can with the native JDBC 2 Standard Extension implementations.

author:
   Aaron Mulder (ammulder@alumni.princeton.edu)
author:
   Bill Burke
author:
   REVISIONS:
author:
   20010703 bill added code for transaction isolation
version:
   $Revision: 1.2 $

Field Summary
final public static int	DEFAULT_ISOLATION

Constructor Summary
public	XAConnectionFactory() Creates a new factory.

Method Summary
public boolean	checkValidObject(Object source, Object parameters) For XAConnectionImpl check that parameters = String[2]{username, password} and that these match the the source connection user and password.
public Object	createObject(Object parameters) Creates a new XAConnection from the provided XADataSource.
public void	deleteObject(Object pooledObject) Closes a connection.
public XADataSource	getDataSource() Gets the XADataSource used to generate XAConnections.
public int	getPSCacheSize() Gets the number of PreparedStatements to be cached for each Connection.
public String	getPassword() Gets the password used to generate XAConnections.
public boolean	getReleaseOnCommit()
public boolean	getSaveStackTrace() Have XAClientConnections save a stack trace on creation This is useful for debugging non-closed connections.
public int	getTransactionIsolation() Gets the transaction isolation level of connections.
public TransactionManager	getTransactionManager() Gets the TransactionManager.
public String	getUser() Gets the user name used to generate XAConnections.
public Object	isUniqueRequest() If a new object is requested and it is a JDBC 1/2 wrapper connection in the same Transaction as an existing connection, return that same connection.
public void	poolStarted(ObjectPool pool) Verifies that the data source and transaction manager are accessible.
public Object	prepareObject(Object pooledObject) Registers the XAConnection's XAResource with the current transaction (if there is one).
public void	setDataSource(XADataSource dataSource) Sets the XADataSource used to generate XAConnections.
public void	setPSCacheSize(int size) Sets the number of PreparedStatements to be cached for each Connection.
public void	setPassword(String password) Sets the password used to generate XAConnections.
public void	setReleaseOnCommit(boolean rel)
public void	setSaveStackTrace(boolean save)
public void	setTransactionIsolation(int iso)
public void	setTransactionIsolation(String iso)
public void	setTransactionManager(TransactionManager tm) Sets the TransactionManager.
public void	setUser(String userName) Sets the user name used to generate XAConnections.

Field Detail

DEFAULT_ISOLATION
final public static int DEFAULT_ISOLATION(Code)

Constructor Detail

XAConnectionFactory
public XAConnectionFactory() throws NamingException(Code)
	Creates a new factory. You must set the XADataSource and TransactionManager JNDI name before the factory can be used.

Method Detail

checkValidObject
public boolean checkValidObject(Object source, Object parameters)(Code)
	For XAConnectionImpl check that parameters = String[2]{username, password} and that these match the the source connection user and password. Return true for non-XAConnectionImpl sources

createObject
public Object createObject(Object parameters) throws Exception(Code)
	Creates a new XAConnection from the provided XADataSource.

deleteObject
public void deleteObject(Object pooledObject)(Code)
	Closes a connection.

getDataSource
public XADataSource getDataSource()(Code)
	Gets the XADataSource used to generate XAConnections.

getPSCacheSize
public int getPSCacheSize()(Code)
	Gets the number of PreparedStatements to be cached for each Connection. The default value is 10.

getPassword
public String getPassword()(Code)
	Gets the password used to generate XAConnections.

getReleaseOnCommit
public boolean getReleaseOnCommit()(Code)

getSaveStackTrace
public boolean getSaveStackTrace()(Code)
	Have XAClientConnections save a stack trace on creation This is useful for debugging non-closed connections. It must be used with ReleaseOnCommit option

getTransactionIsolation
public int getTransactionIsolation()(Code)
	Gets the transaction isolation level of connections. This defaults to whatever the connection's default iso level is.

getTransactionManager
public TransactionManager getTransactionManager()(Code)
	Gets the TransactionManager.

getUser
public String getUser()(Code)
	Gets the user name used to generate XAConnections.

isUniqueRequest
public Object isUniqueRequest()(Code)
	If a new object is requested and it is a JDBC 1/2 wrapper connection in the same Transaction as an existing connection, return that same connection.

poolStarted
public void poolStarted(ObjectPool pool)(Code)
	Verifies that the data source and transaction manager are accessible.

prepareObject
public Object prepareObject(Object pooledObject)(Code)
	Registers the XAConnection's XAResource with the current transaction (if there is one). Sets listeners that will handle deregistering and returning the XAConnection to the pool via callbacks.

setDataSource
public void setDataSource(XADataSource dataSource)(Code)
	Sets the XADataSource used to generate XAConnections. This may be supplied by the vendor, or it may use the wrappers for non-compliant drivers (see XADataSourceImpl). See Also: org.ofbiz.minerva.pool.jdbc.xa.wrapper.XADataSourceImpl

setPSCacheSize
public void setPSCacheSize(int size)(Code)
	Sets the number of PreparedStatements to be cached for each Connection. Your DB product may impose a limit on the number of open PreparedStatements. The default value is 10.

setPassword
public void setPassword(String password)(Code)
	Sets the password used to generate XAConnections. This is optional, and will only be used if present.

setReleaseOnCommit
public void setReleaseOnCommit(boolean rel)(Code)

setSaveStackTrace
public void setSaveStackTrace(boolean save)(Code)

setTransactionIsolation
public void setTransactionIsolation(int iso)(Code)

setTransactionIsolation
public void setTransactionIsolation(String iso)(Code)

setTransactionManager
public void setTransactionManager(TransactionManager tm)(Code)
	Sets the TransactionManager.

setUser
public void setUser(String userName)(Code)
	Sets the user name used to generate XAConnections. This is optional, and will only be used if present.

Methods inherited from org.ofbiz.minerva.pool.PoolObjectFactory

public boolean checkValidObject(Object source, Object parameters)(Code)(Java Doc)
abstract public Object createObject(Object parameters) throws Exception(Code)(Java Doc)
public void deleteObject(Object pooledObject)(Code)(Java Doc)
public Object isUniqueRequest()(Code)(Java Doc)
public void poolClosing(ObjectPool pool)(Code)(Java Doc)
public void poolStarted(ObjectPool pool)(Code)(Java Doc)
public Object prepareObject(Object pooledObject)(Code)(Java Doc)
public Object returnObject(Object clientObject)(Code)(Java Doc)
public Object translateObject(Object clientObject)(Code)(Java Doc)

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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