toolbox.pooling
Class JDBCResourcePool

java.lang.Object
  toolbox.pooling.ResourcePoolImpl
      toolbox.pooling.JDBCResourcePool

All Implemented Interfaces:

ResourcePool

public class JDBCResourcePool
extends ResourcePoolImpl

ResourcePool implementation to do JDBC connection pooling.

Field Summary

Fields inherited from class toolbox.pooling.ResourcePoolImpl

m_customProps

Constructor Summary

JDBCResourcePool()
Default constructor

Method Summary

protected java.lang.Object	createResource(XMLProperties xmlProps, int count) Creates a JDBCConfig instance from the given XMLProperties and retrieves the Connection instance from the config instance.
protected void	destroyResource(java.lang.Object resource) Destroys the given Connection.
protected boolean	isResourceValid(java.lang.Object resource) Validates the given connection and returns the validation state.
protected void	preInit(XMLProperties xmlProps) Not implemented.

Methods inherited from class toolbox.pooling.ResourcePoolImpl

destroy, getName, getResource, getStatus, getStatusString, init, releaseResource

Methods inherited from class java.lang.Object

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

Constructor Detail

JDBCResourcePool

public JDBCResourcePool()

Default constructor

Method Detail

preInit

protected void preInit(XMLProperties xmlProps)
                throws ResourcePoolException

Not implemented.

Specified by:

preInit in class ResourcePoolImpl

Parameters:

xmlProps - XML configuration properties.

Throws:

ResourcePoolException - if the custom initialisation fails.

createResource

protected java.lang.Object createResource(XMLProperties xmlProps,
                                          int count)
                                   throws ResourcePoolException

Creates a JDBCConfig instance from the given XMLProperties and retrieves the Connection instance from the config instance.

Specified by:

createResource in class ResourcePoolImpl

Parameters:

xmlProps - XML configuration properties.

count - int indicating how many times this method has be called.

Returns:

Connection that was created.

Throws:

ResourcePoolException - if the JDBC connection cannot be created.

destroyResource

protected void destroyResource(java.lang.Object resource)
                        throws ResourcePoolException

Destroys the given Connection.

Specified by:

destroyResource in class ResourcePoolImpl

Parameters:

resource - Connection resource to destroy.

Throws:

ResourcePoolException - if the connection could not be closed.

isResourceValid

protected boolean isResourceValid(java.lang.Object resource)
                           throws ResourcePoolException

Validates the given connection and returns the validation state.

Specified by:

isResourceValid in class ResourcePoolImpl

Parameters:

resource - Data connection to validate.

Returns:

boolean indicating the state of the connection.

Throws:

ResourcePoolException