Module org.apache.wicket.devutils

Package org.apache.wicket.devutils.inspector

Class RenderPerformanceListener

java.lang.Object

org.apache.wicket.devutils.inspector.RenderPerformanceListener

All Implemented Interfaces:

IComponentInstantiationListener

public class RenderPerformanceListener
extends Object
implements IComponentInstantiationListener

A listener that adds a special Behavior that measures the time needed by a component to render itself. MarkupContainer's render includes the time for rendering its children so the time accumulates.

To enable this listener use the following in YourApplication.init():

 getComponentInstantiationListeners().add(new RenderPerformanceListener());
 

Constructor Summary

Constructors

Constructor	Description
RenderPerformanceListener()

Method Summary

Modifier and Type	Method	Description
protected boolean	accepts(Component component)	Filters which components' render performance should be measured.
void	onInstantiation(Component component)	Called for every component that is instantiated.

Methods inherited from class java.lang.Object

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

Constructor Details

RenderPerformanceListener

public RenderPerformanceListener()

Method Details

onInstantiation

public void onInstantiation(Component component)

Description copied from interface: IComponentInstantiationListener

Called for every component that is instantiated. This method is called during construction, so do not depend on the construction being completed yet. The id is guaranteed to be set before this call.

Specified by:

onInstantiation in interface IComponentInstantiationListener

Parameters:

component - the component that is being instantiated.

accepts

protected boolean accepts(Component component)

Filters which components' render performance should be measured.

Parameters:

component - the component that is instantiated

Returns:

true if render time should be measured the for this component, false - otherwise