org.eclipse.jetty.embedded

Class ManyHandlers

java.lang.Object

org.eclipse.jetty.embedded.ManyHandlers

public class ManyHandlers
extends Object

Frequently many handlers are combined together to handle different aspects of a request. A handler may:

• handle the request and completely generate the response
• partially handle the request, but defer response generation to another handler.
• select another handler to pass the request to.
• use business logic to decide to do one of the above.

Multiple handlers may be combined with:

• HandlerWrapper which will nest one handler inside another. In this example, the HelloHandler is nested inside a HandlerWrapper that sets the greeting as a request attribute.
• HandlerList which will call a collection of handlers until the request is marked as handled. In this example, a list is used to combine the param handler (which only handles the request if there are parameters) and the wrapper handler. Frequently handler lists are terminated with the DefaultHandler, which will generate a suitable 404 response if the request has not been handled.
• HandlerCollection which will call each handler regardless if the request has been handled or not. Typically this is used to always pass a request to the logging handler.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ManyHandlers.ParamHandler Produce output that lists all of the request parameters
static class	ManyHandlers.WelcomeWrapHandler Add a request attribute, but produce no output.

Constructor Summary

Constructors

Constructor and Description
ManyHandlers()

Method Summary

Methods

Modifier and Type	Method and Description
static void	main(String[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

ManyHandlers

public ManyHandlers()

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception