com.opensymphony.oscache.web.filter
Class ExpiresRefreshPolicy

java.lang.Object
  com.opensymphony.oscache.web.filter.ExpiresRefreshPolicy

All Implemented Interfaces:

EntryRefreshPolicy, java.io.Serializable

public class ExpiresRefreshPolicy
extends java.lang.Object
implements EntryRefreshPolicy

Checks if a cache filter entry has expired. This is useful when expires header are used in the response.

Version:

$Revision: 1.1 $

Author:

Lars Torunski

See Also:

Serialized Form

Constructor Summary

ExpiresRefreshPolicy(int refreshPeriod)
Constructor ExpiresRefreshPolicy.

Method Summary

boolean

needsRefresh(CacheEntry entry) Indicates whether the supplied CacheEntry needs to be refreshed.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExpiresRefreshPolicy

public ExpiresRefreshPolicy(int refreshPeriod)

Constructor ExpiresRefreshPolicy.

Parameters:

refreshPeriod - the refresh period in seconds

Method Detail

needsRefresh

public boolean needsRefresh(CacheEntry entry)

Indicates whether the supplied CacheEntry needs to be refreshed. This will be called when retrieving an entry from the cache - if this method returns true then a NeedsRefreshException will be thrown.

Specified by:

needsRefresh in interface EntryRefreshPolicy

Parameters:

entry - The cache entry which is ignored.

Returns:

true if the content needs refreshing, false otherwise.

See Also:

NeedsRefreshException, CacheEntry