com.infoengine.connector
Class IeConnectionManager

java.lang.Object
  com.infoengine.connector.IeConnectionManager

All Implemented Interfaces:

javax.resource.spi.ConnectionEventListener, javax.resource.spi.ConnectionManager, EventListener, Serializable

public class IeConnectionManager

extends Object

implements javax.resource.spi.ConnectionManager, javax.resource.spi.ConnectionEventListener

conneciton manager for the situation where the connector is used outside of a J2EE container ("non-managed application scenario") implements a simple connection pool. the free pool is checked every 30 seconds. idle connections are destroyed after they've been idle for 60 seconds.

See Also:

Serialized Form

Nested Class Summary

(package private) class

IeConnectionManager.FreeCxKey used as a key for connections in the free pool, marks the last time a connection was used.

Field Summary

private Hashtable	busyHandles
private static long	EXPIRE_INTERVAL
private Hashtable	freeHandles
private static long	IDLE_TIME
private Log	log

Constructor Summary

(package private)

IeConnectionManager(Log l) create a new connection manager

Method Summary

Object	allocateConnection(javax.resource.spi.ManagedConnectionFactory mcf, javax.resource.spi.ConnectionRequestInfo cxRequestInfo) allocation a new CCI connection
void	connectionClosed(javax.resource.spi.ConnectionEvent event) connection closed callback.
void	connectionErrorOccurred(javax.resource.spi.ConnectionEvent event) connection error callback.
private void	expire() used to remove idle connections from the free pool
void	localTransactionCommitted(javax.resource.spi.ConnectionEvent event)
void	localTransactionRolledback(javax.resource.spi.ConnectionEvent event)
void	localTransactionStarted(javax.resource.spi.ConnectionEvent event)

Methods inherited from class java.lang.Object

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

Field Detail

EXPIRE_INTERVAL

private static final long EXPIRE_INTERVAL

See Also:

Constant Field Values

IDLE_TIME

private static final long IDLE_TIME

See Also:

Constant Field Values

freeHandles

private Hashtable freeHandles

busyHandles

private Hashtable busyHandles

log

private Log log

Constructor Detail

IeConnectionManager

IeConnectionManager(Log l)

create a new connection manager

Parameters:

l - Log

Method Detail

allocateConnection

public Object allocateConnection(javax.resource.spi.ManagedConnectionFactory mcf,
                                 javax.resource.spi.ConnectionRequestInfo cxRequestInfo)
                          throws javax.resource.ResourceException

allocation a new CCI connection

Specified by:

allocateConnection in interface javax.resource.spi.ConnectionManager

Parameters:

mcf - the managed connection factory object

cxRequestInfo - the connection request information

Returns:

Object cci connection

Throws:

javax.resource.ResourceException - if something bad happens...

connectionClosed

public void connectionClosed(javax.resource.spi.ConnectionEvent event)

connection closed callback. when a connection is closed it can be returned to the free connection pool.

Specified by:

connectionClosed in interface javax.resource.spi.ConnectionEventListener

Parameters:

event - the close connection event

connectionErrorOccurred

public void connectionErrorOccurred(javax.resource.spi.ConnectionEvent event)

connection error callback. when a connection error occurs the connection is destroyed and removed from the pools.

Specified by:

connectionErrorOccurred in interface javax.resource.spi.ConnectionEventListener

Parameters:

event - the error event

localTransactionCommitted

public void localTransactionCommitted(javax.resource.spi.ConnectionEvent event)

Specified by:

localTransactionCommitted in interface javax.resource.spi.ConnectionEventListener

localTransactionRolledback

public void localTransactionRolledback(javax.resource.spi.ConnectionEvent event)

Specified by:

localTransactionRolledback in interface javax.resource.spi.ConnectionEventListener

localTransactionStarted

public void localTransactionStarted(javax.resource.spi.ConnectionEvent event)

Specified by:

localTransactionStarted in interface javax.resource.spi.ConnectionEventListener

expire

private void expire()

used to remove idle connections from the free pool