org.directwebremoting.servlet
Class DwrServlet

java.lang.Object
  extended by javax.servlet.GenericServlet
      extended by javax.servlet.http.HttpServlet
          extended by org.directwebremoting.servlet.DwrServlet
All Implemented Interfaces:
java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig
Direct Known Subclasses:
DwrGuiceServlet, DWRServlet

public class DwrServlet
extends javax.servlet.http.HttpServlet

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:

Author:
Joe Walker [joe at getahead dot ltd dot uk]
See Also:
Serialized Form

Field Summary
static Logger log
          The log stream
 
Constructor Summary
DwrServlet()
           
 
Method Summary
 void destroy()
           
 Container getContainer()
          Accessor for the DWR IoC container.
 void init(javax.servlet.ServletConfig servletConfig)
           
 void shutdown()
          Kill all comet polls.
 
Methods inherited from class javax.servlet.http.HttpServlet
service
 
Methods inherited from class javax.servlet.GenericServlet
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
 

Field Detail

log

public static final Logger log
The log stream

Constructor Detail

DwrServlet

public DwrServlet()
Method Detail

init

public void init(javax.servlet.ServletConfig servletConfig)
          throws javax.servlet.ServletException
Specified by:
init in interface javax.servlet.Servlet
Overrides:
init in class javax.servlet.GenericServlet
Throws:
javax.servlet.ServletException

destroy

public void destroy()
Specified by:
destroy in interface javax.servlet.Servlet
Overrides:
destroy in class javax.servlet.GenericServlet

shutdown

public void shutdown()
Kill all comet polls.

Technically a servlet engine ought to call this only when all the threads are already removed, however at least Tomcat doesn't do this properly (it waits for a while and then calls destroy anyway).

It would be good if we could get destroy() to call this method however destroy() is only called once all threads are done so it's too late.


getContainer

public Container getContainer()
Accessor for the DWR IoC container.

Returns:
DWR's IoC container

Copyright ? 2005