BEA WebLogic Server 9.1 API Reference

weblogic.cache.filter
Class CacheFilter

java.lang.Object
  weblogic.cache.filter.CacheFilter

All Implemented Interfaces:

Filter

public class CacheFilter

extends Object

implements Filter

A Filter implementation that is able to cache attributes and results from standard requests and responses. To use this filter webapps must specify it in their deployment descriptor. The CacheFilter has several configuration options timeout the time-to-live on cached entries, by default cached entries never timeout. max-cache-size the maximum size of an element that can be cached, by default MAX_CACHED_SIZE size the size of the cache, default unbounded scope the scope of cached values, by default application. key FIXME vars FIXME verbose whether caching operations should be logged, by default off.

Copyright © 2005 BEA Systems, Inc. All Rights Reserved.

Field Summary

static long

MAX_CACHED_SIZE

Constructor Summary

CacheFilter()

Method Summary

void	destroy() Destroy the CacheFilter
void	doFilter(ServletRequest req, ServletResponse res, FilterChain chain) Filter and cache servlet requests and responses.
protected weblogic.cache.KeySet	getKeySet(weblogic.cache.CacheSystem cs)
void	init(FilterConfig config) Initialize the CacheFilter

Methods inherited from class java.lang.Object

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

Field Detail

MAX_CACHED_SIZE

public static final long MAX_CACHED_SIZE

See Also:

Constant Field Values

Constructor Detail

CacheFilter

public CacheFilter()

Method Detail

destroy

public void destroy()

Destroy the CacheFilter

Specified by:

destroy in interface Filter

doFilter

public void doFilter(ServletRequest req,
                     ServletResponse res,
                     FilterChain chain)
              throws ServletException,
                     IOException

Filter and cache servlet requests and responses.

Specified by:

doFilter in interface Filter

Parameters:

req -

res -

chain -

Throws:

ServletException

IOException

getKeySet

protected weblogic.cache.KeySet getKeySet(weblogic.cache.CacheSystem cs)
                                   throws weblogic.cache.CacheException

Throws:

weblogic.cache.CacheException

init

public void init(FilterConfig config)
          throws ServletException

Initialize the CacheFilter

Specified by:

init in interface Filter

Parameters:

config -

Throws:

ServletException