org.apache.wicket.markup.html
Class WebResource

java.lang.Object
  org.apache.wicket.Resource
      org.apache.wicket.markup.html.WebResource

All Implemented Interfaces:

IClusterable, IRequestListener, IResourceListener, java.io.Serializable

Direct Known Subclasses:

ByteArrayResource, ContextRelativeResource, DynamicByteArrayResource, DynamicWebResource, PackageResource

public abstract class WebResource

extends Resource

Base class for web resources. See the base class Resource for details on resources in general, including how they can be shared in an application.

Author:

Jonathan Locke

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.wicket.IResourceListener

INTERFACE

Constructor Summary

WebResource()
Construct.

Method Summary

protected void	configureResponse(Response response) Allows implementations to do configure the response, like setting headers etc.
protected int	getCacheDuration() default implementation is to cache resources for 1 hour.
protected void	setHeaders(WebResponse response) Subclasses can override this to set there headers when the resource is being served.

Methods inherited from class org.apache.wicket.Resource

getParameters, getResourceStream, invalidate, isCacheable, onResourceRequested, setCacheable, setParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

WebResource

public WebResource()

Construct.

Method Detail

configureResponse

protected final void configureResponse(Response response)

Description copied from class: Resource

Allows implementations to do configure the response, like setting headers etc.

Overrides:

configureResponse in class Resource

Parameters:

response - the response

See Also:

Resource.configureResponse(org.apache.wicket.Response)

setHeaders

protected void setHeaders(WebResponse response)

Subclasses can override this to set there headers when the resource is being served. By default 2 headers will be set if the Resource is cacheable

 response.setDateHeader("Expires", System.currentTimeMillis() + (3600 * 1000));
 response.setHeader("Cache-Control", "max-age=" + 3600);
 

So if a resource wants to control this or doesn't want to set this info it should override this method and don't call super.

Parameters:

response - The WebResponse where set(Date)Header can be called on.

getCacheDuration

protected int getCacheDuration()

default implementation is to cache resources for 1 hour. can be overridden by extension classes.

Returns:

The cache duration in seconds