uk.ltd.getahead.dwr
Class DWRServlet

java.lang.Object
  javax.servlet.GenericServlet
      javax.servlet.http.HttpServlet
          uk.ltd.getahead.dwr.AbstractDWRServlet
              uk.ltd.getahead.dwr.DWRServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class DWRServlet
extends AbstractDWRServlet

This is the main servlet that handles all the requests to DWR.

It is on the large side because it can't use technologies like JSPs etc since it all needs to be deployed in a single jar file, and while it might be possible to integrate Velocity or similar I think simplicity is more important, and there are only 2 real pages both script heavy in this servlet anyway.

There are 5 things to do, in the order that you come across them:

• The index test page that points at the classes
• The class test page that lets you execute methods
• The interface javascript that uses the engine to send requests
• The engine javascript to form the iframe request and process replies
• The exec 'page' that executes the method and returns data to the iframe

Author:

Joe Walker [joe at getahead dot ltd dot uk]

See Also:

Serialized Form

Field Summary

Fields inherited from class uk.ltd.getahead.dwr.AbstractDWRServlet

PACKAGE

Constructor Summary

DWRServlet()

Method Summary

void	configure(javax.servlet.ServletConfig config, Configuration configuration) Performs additional configuration based on the specified init parameters.
Container	getContainer(javax.servlet.ServletConfig config) Concrete implementations of a DwrServlet will need to provide the system with a pre configured Container from which we can get the components that make up DWR.

Methods inherited from class uk.ltd.getahead.dwr.AbstractDWRServlet

init

Methods inherited from class javax.servlet.http.HttpServlet

service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

DWRServlet

public DWRServlet()

Method Detail

getContainer

public Container getContainer(javax.servlet.ServletConfig config)
                       throws javax.servlet.ServletException

Description copied from class: AbstractDWRServlet

Concrete implementations of a DwrServlet will need to provide the system with a pre configured Container from which we can get the components that make up DWR.

Parameters:

config - the servlet configuration to obtain the init parameters from

Returns:

the default container implementation

Throws:

javax.servlet.ServletException - in case adding of a parameter fails

configure

public void configure(javax.servlet.ServletConfig config,
                      Configuration configuration)
               throws javax.servlet.ServletException

Description copied from class: AbstractDWRServlet

Performs additional configuration based on the specified init parameters. It adds additional configuration based on the configuration files specified by init parameters. In case no confuration file has been specified, the default DWR configuration is loaded.

Parameters:

config - the servlet configuration to obtain the init parameters from

configuration - the configuration to add configuration to

Throws:

javax.servlet.ServletException - in case the additional configuration fails