GWTApplication.server
Class DBCPoolingListener

java.lang.Object
  GWTApplication.server.DBCPoolingListener

All Implemented Interfaces:

java.util.EventListener, javax.servlet.ServletContextListener

public class DBCPoolingListener
extends java.lang.Object
implements javax.servlet.ServletContextListener

This is a class which will be called by Tomcat when the servlet for the fault database is loaded by the container and will result in the database connection pool being initialised. The servlet when connecting to the database will use a connection from the database pool so as to accelerate the database access.

Version:

$Id: DBCPoolingListener.java,v 1.3 2008/01/15 11:08:15 cb Exp $

Author:

Craige Bevil

Constructor Summary

DBCPoolingListener()

Method Summary

void	contextDestroyed(javax.servlet.ServletContextEvent sce)
void	contextInitialized(javax.servlet.ServletContextEvent sce) This is called when the fault database context is created in the servlet and serves to initialise the database pool intended to be used by the fault management system in the tomcat servlet.

Methods inherited from class java.lang.Object

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

Constructor Detail

DBCPoolingListener

public DBCPoolingListener()

Method Detail

contextInitialized

public void contextInitialized(javax.servlet.ServletContextEvent sce)

This is called when the fault database context is created in the servlet and serves to initialise the database pool intended to be used by the fault management system in the tomcat servlet. It looks up the data source in the tomcat container which will provide the handle through which we will get database connections.

The configuration data for the pool (pertinent to the fault management system) is stored within the tomcat configuration data.

Specified by:

contextInitialized in interface javax.servlet.ServletContextListener

Parameters:

sce - This is the details of the servlet context event.

contextDestroyed

public void contextDestroyed(javax.servlet.ServletContextEvent sce)

Specified by:

contextDestroyed in interface javax.servlet.ServletContextListener