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com.mysql.jdbc.jdbc2.optional
Class MysqlPooledConnection  

java.lang.Object
  com.mysql.jdbc.jdbc2.optional.MysqlPooledConnection

All Implemented Interfaces:

javax.sql.PooledConnection

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public class MysqlPooledConnection

extends java.lang.Object

implements javax.sql.PooledConnection

This class is used to wrap and return a physical connection within a logical handle. It also registers and notifies ConnectionEventListeners of any ConnectionEvents

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Field Summary
static int	CONNECTION_CLOSED_EVENT           The flag for a connection being closed.
static int	CONNECTION_ERROR_EVENT           The flag for an exception being thrown.
private  java.util.Hashtable	eventListeners
private  java.sql.Connection	logicalHandle
private  java.sql.Connection	physicalConn

 

Constructor Summary

MysqlPooledConnection(java.sql.Connection connection)           Construct a new MysqlPooledConnection and set instance variables

 

Method Summary
void	addConnectionEventListener(javax.sql.ConnectionEventListener connectioneventlistener)           Adds ConnectionEventListeners to a hash table to be used for notification of ConnectionEvents
protected  void	callListener(int eventType, java.sql.SQLException sqlException)           Notifies all registered ConnectionEventListeners of ConnectionEvents.
void	close()           Invoked by the container (not the client), and should close the physical connection.
java.sql.Connection	getConnection()           Invoked by the container.
void	removeConnectionEventListener(javax.sql.ConnectionEventListener connectioneventlistener)           Removes ConnectionEventListeners from hash table used for notification of ConnectionEvents

 

Methods inherited from class java.lang.Object

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

 

Field Detail

CONNECTION_ERROR_EVENT

public static final int CONNECTION_ERROR_EVENT

The flag for an exception being thrown.

See Also:

Constant Field Values

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CONNECTION_CLOSED_EVENT

public static final int CONNECTION_CLOSED_EVENT

The flag for a connection being closed.

See Also:

Constant Field Values

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eventListeners

private java.util.Hashtable eventListeners

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logicalHandle

private java.sql.Connection logicalHandle

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physicalConn

private java.sql.Connection physicalConn

Constructor Detail

MysqlPooledConnection

public MysqlPooledConnection(java.sql.Connection connection)

Construct a new MysqlPooledConnection and set instance variables

Method Detail

addConnectionEventListener

public void addConnectionEventListener(javax.sql.ConnectionEventListener connectioneventlistener)

Adds ConnectionEventListeners to a hash table to be used for notification of ConnectionEvents

Specified by:

addConnectionEventListener in interface javax.sql.PooledConnection

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removeConnectionEventListener

public void removeConnectionEventListener(javax.sql.ConnectionEventListener connectioneventlistener)

Removes ConnectionEventListeners from hash table used for notification of ConnectionEvents

Specified by:

removeConnectionEventListener in interface javax.sql.PooledConnection

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getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException

Invoked by the container. Return a logicalHandle object that wraps a physical connection.

Specified by:

getConnection in interface javax.sql.PooledConnection

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close

public void close()
           throws java.sql.SQLException

Invoked by the container (not the client), and should close the physical connection. This will be called if the pool is destroyed or the connectionEventListener receives a connectionErrorOccurred event.

Specified by:

close in interface javax.sql.PooledConnection

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callListener

protected void callListener(int eventType,
                            java.sql.SQLException sqlException)

Notifies all registered ConnectionEventListeners of ConnectionEvents. Instantiates a new ConnectionEvent which wraps sqlException and invokes either connectionClose or connectionErrorOccurred on listener as appropriate.

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