org.mmbase.cache
Class BasicReleaseStrategy

java.lang.Object
  org.mmbase.cache.ReleaseStrategy
      org.mmbase.cache.BasicReleaseStrategy

public class BasicReleaseStrategy
extends ReleaseStrategy

This class provides a very basic release strategy. In fact it will release the cache in nearly every instance, except when the event is for a step in the SearchQuery that has 'nodes' set for it and the changed node is not one of those. This release strategy is in fact the original one and will allways be the first in the hierarchy of the ChainedReleaseStrategy.

Since:

MMBase-1.8

Version:

$Id: BasicReleaseStrategy.java 34900 2009-05-01 16:29:42Z michiel $

Author:

Ernst Bunders

Nested Class Summary

Nested classes/interfaces inherited from class org.mmbase.cache.ReleaseStrategy

ReleaseStrategy.StrategyResult, ReleaseStrategy.Timer

Constructor Summary

BasicReleaseStrategy()

Method Summary

protected boolean	doEvaluate(NodeEvent event, SearchQuery query, List<MMObjectNode> cachedResult) implement this method to create your own strategy.
protected boolean	doEvaluate(RelationEvent event, SearchQuery query, List<MMObjectNode> cachedResult) implement this method to create your own strategy.
String	getDescription()
String	getName()

Methods inherited from class org.mmbase.cache.ReleaseStrategy

clear, equals, evaluate, evaluate, getAvgEvaluationTimeInMilis, getConstraintsForField, getSortordersForField, getTotalEvaluated, getTotalEvaluationTimeMillis, getTotalPreserved, hashCode, isEnabled, setEnabled, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

BasicReleaseStrategy

public BasicReleaseStrategy()

Method Detail

getName

public String getName()

Specified by:

getName in class ReleaseStrategy

getDescription

public String getDescription()

Specified by:

getDescription in class ReleaseStrategy

doEvaluate

protected final boolean doEvaluate(NodeEvent event,
                                   SearchQuery query,
                                   List<MMObjectNode> cachedResult)

Description copied from class: ReleaseStrategy

implement this method to create your own strategy.

Specified by:

doEvaluate in class ReleaseStrategy

Parameters:

event - a node event

Returns:

true if the cache entry should be released

doEvaluate

protected boolean doEvaluate(RelationEvent event,
                             SearchQuery query,
                             List<MMObjectNode> cachedResult)

Description copied from class: ReleaseStrategy

implement this method to create your own strategy.

Specified by:

doEvaluate in class ReleaseStrategy

Parameters:

event - a relation event

Returns:

true if the cache entry should be released