org.apache.wicket.request.resource
Class AbstractResource

java.lang.Object
  org.apache.wicket.request.resource.AbstractResource

All Implemented Interfaces:

java.io.Serializable, IClusterable, IResource

Direct Known Subclasses:

ByteArrayResource, ContextRelativeResource, DynamicImageResource, MergedResourcesResource, PackageResource, ResourceStreamResource

public abstract class AbstractResource
extends java.lang.Object
implements IResource

Convenience resource implementation. The subclass must implement newResourceResponse(org.apache.wicket.request.resource.IResource.Attributes) method.

Author:

Matej Knopp

See Also:

Serialized Form

Nested Class Summary

static class	AbstractResource.ResourceResponse Represents data used to configure response and write resource data.
static class	AbstractResource.WriteCallback Callback invoked when resource data needs to be written to response.

Nested classes/interfaces inherited from interface org.apache.wicket.request.resource.IResource

IResource.Attributes

Field Summary

static java.util.Set<java.lang.String>

INTERNAL_HEADERS header values that are managed internally and must not be set directly

Constructor Summary

AbstractResource()
Construct.

Method Summary

protected void	configureCache(AbstractResource.ResourceResponse data, IResource.Attributes attributes) Configure the web response header for client cache control.
protected IResourceCachingStrategy	getCachingStrategy()
protected abstract AbstractResource.ResourceResponse	newResourceResponse(IResource.Attributes attributes) Override this method to return a AbstractResource.ResourceResponse for the request.
void	respond(IResource.Attributes attributes) Renders this resource to response using the provided attributes.
protected void	setResponseHeaders(AbstractResource.ResourceResponse data, IResource.Attributes attributes)

Methods inherited from class java.lang.Object

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

Field Detail

INTERNAL_HEADERS

public static final java.util.Set<java.lang.String> INTERNAL_HEADERS

header values that are managed internally and must not be set directly

Constructor Detail

AbstractResource

public AbstractResource()

Construct.

Method Detail

newResourceResponse

protected abstract AbstractResource.ResourceResponse newResourceResponse(IResource.Attributes attributes)

Override this method to return a AbstractResource.ResourceResponse for the request.

Parameters:

attributes - request attributes

Returns:

resource data instance

configureCache

protected void configureCache(AbstractResource.ResourceResponse data,
                              IResource.Attributes attributes)

Configure the web response header for client cache control.

Parameters:

data - resource data

attributes - request attributes

getCachingStrategy

protected IResourceCachingStrategy getCachingStrategy()

respond

public final void respond(IResource.Attributes attributes)

Description copied from interface: IResource

Renders this resource to response using the provided attributes.

Specified by:

respond in interface IResource

See Also:

IResource.respond(org.apache.wicket.request.resource.IResource.Attributes)

setResponseHeaders

protected void setResponseHeaders(AbstractResource.ResourceResponse data,
                                  IResource.Attributes attributes)

Parameters:

data -

attributes -