Package org.apache.wicket.request.resource.caching

Class QueryStringWithVersionResourceCachingStrategy

java.lang.Object

org.apache.wicket.request.resource.caching.QueryStringWithVersionResourceCachingStrategy

All Implemented Interfaces:

IResourceCachingStrategy

public class QueryStringWithVersionResourceCachingStrategy
extends Object
implements IResourceCachingStrategy

resource caching strategy that adds a version string to the query parameters of the resource (this is similar to how wicket 1.4 does it when enabling timestamps on resources). You should preferably use FilenameWithVersionResourceCachingStrategy since it is more reliable.

Since:

1.5

Author:

Peter Ertl

See Also:

FilenameWithVersionResourceCachingStrategy

Field Summary

Fields inherited from interface org.apache.wicket.request.resource.caching.IResourceCachingStrategy

URL_VERSION

Constructor Summary

Constructors

Constructor	Description
QueryStringWithVersionResourceCachingStrategy(String versionParameter, IResourceVersion resourceVersion)	create query string resource caching strategy
QueryStringWithVersionResourceCachingStrategy(IResourceVersion resourceVersion)	create query string resource caching strategy

Method Summary

Modifier and Type	Method	Description
void	clearCache()	Clears any stateful information
void	decorateResponse(AbstractResource.ResourceResponse response, IStaticCacheableResource resource)	decorate resource response
void	decorateUrl(ResourceUrl url, IStaticCacheableResource resource)	add caching related information to filename + parameters
String	getVersionParameter()
void	undecorateUrl(ResourceUrl url)	Removes caching related information from filename + parameters.

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryStringWithVersionResourceCachingStrategy

public QueryStringWithVersionResourceCachingStrategy(IResourceVersion resourceVersion)

create query string resource caching strategy

it will use a query parameter named "ver" for storing the version information.

Parameters:

resourceVersion - resource version provider

QueryStringWithVersionResourceCachingStrategy

public QueryStringWithVersionResourceCachingStrategy(String versionParameter,
                                                     IResourceVersion resourceVersion)

create query string resource caching strategy

it will use a query parameter with name specified by parameter resourceVersion for storing the version information.

Parameters:

versionParameter - name of version parameter which will be added to query string containing the resource version

resourceVersion - resource version provider

Method Detail

getVersionParameter

public final String getVersionParameter()

Returns:

name of version parameter which will be added to query string

decorateUrl

public void decorateUrl(ResourceUrl url,
                        IStaticCacheableResource resource)

Description copied from interface: IResourceCachingStrategy

add caching related information to filename + parameters

Specified by:

decorateUrl in interface IResourceCachingStrategy

Parameters:

url - parameters to which caching information should be added and which will be used to construct the url to the resource

resource - cacheable resource

undecorateUrl

public void undecorateUrl(ResourceUrl url)

Description copied from interface: IResourceCachingStrategy

Removes caching related information from filename + parameters. In essenese this method undoes what IResourceCachingStrategy.decorateUrl(ResourceUrl, IStaticCacheableResource) did.

Specified by:

undecorateUrl in interface IResourceCachingStrategy

Parameters:

url - parameters that were used to construct the url to the resource and from which previously added caching information should be stripped

decorateResponse

public void decorateResponse(AbstractResource.ResourceResponse response,
                             IStaticCacheableResource resource)

Description copied from interface: IResourceCachingStrategy

decorate resource response

Specified by:

decorateResponse in interface IResourceCachingStrategy

clearCache

public void clearCache()

Description copied from interface: IResourceCachingStrategy

Clears any stateful information

Specified by:

clearCache in interface IResourceCachingStrategy