Module org.apache.wicket.core

Package org.apache.wicket.request.cycle

Class PageRequestHandlerTracker

java.lang.Object

org.apache.wicket.request.cycle.PageRequestHandlerTracker

All Implemented Interfaces:

IRequestCycleListener

public class PageRequestHandlerTracker
extends Object
implements IRequestCycleListener

Registers and retrieves first and last executed IPageRequestHandler in a request cycle. Can be used to find out what is the requested page and what is the actual response page.

To use it an application needs to register it with:

          application.getRequestCycleListeners().add(new PageRequestHandlerTracker());
     

The result can then be accessed at the end of each RequestCycle with:

          IPageRequestHandler first = PageRequestHandlerTracker.getFirstHandler(RequestCycle.get());
          IPageRequestHandler last = PageRequestHandlerTracker.getLastHandler(RequestCycle.get());
     

Since:

1.5.8

Field Summary

Fields

Modifier and Type	Field	Description
static final MetaDataKey<IPageRequestHandler>	FIRST_HANDLER_KEY	The key for the first handler
static final MetaDataKey<IPageRequestHandler>	LAST_HANDLER_KEY	The key for the last handler

Constructor Summary

Constructors

Constructor	Description
PageRequestHandlerTracker()

Method Summary

Modifier and Type	Method	Description
static IPageRequestHandler	getFirstHandler(RequestCycle cycle)	retrieves first handler from the request cycle
static IPageRequestHandler	getLastHandler(RequestCycle cycle)	retrieves last handler from request cycle
void	onRequestHandlerResolved(RequestCycle cycle, IRequestHandler handler)	Called when an IRequestHandler is resolved and will be executed.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wicket.request.cycle.IRequestCycleListener

onBeginRequest, onDetach, onEndRequest, onException, onExceptionRequestHandlerResolved, onRequestHandlerExecuted, onRequestHandlerScheduled, onUrlMapped

Field Details

FIRST_HANDLER_KEY

public static final MetaDataKey<IPageRequestHandler> FIRST_HANDLER_KEY

The key for the first handler

LAST_HANDLER_KEY

public static final MetaDataKey<IPageRequestHandler> LAST_HANDLER_KEY

The key for the last handler

Constructor Details

PageRequestHandlerTracker

public PageRequestHandlerTracker()

Method Details

onRequestHandlerResolved

public void onRequestHandlerResolved(RequestCycle cycle,
 IRequestHandler handler)

Description copied from interface: IRequestCycleListener

Called when an IRequestHandler is resolved and will be executed.

Specified by:

onRequestHandlerResolved in interface IRequestCycleListener

getLastHandler

public static IPageRequestHandler getLastHandler(RequestCycle cycle)

retrieves last handler from request cycle

Parameters:

cycle -

Returns:

last handler

getFirstHandler

public static IPageRequestHandler getFirstHandler(RequestCycle cycle)

retrieves first handler from the request cycle

Parameters:

cycle -

Returns:

first handler