org.databene.commons.accessor
Class AccessorCache<C,V>

java.lang.Object
  org.databene.commons.accessor.AccessorCache<C,V>

All Implemented Interfaces:

Accessor<C,V>, DependentAccessor<C,V>

public class AccessorCache<C,V>
extends java.lang.Object
implements DependentAccessor<C,V>

Accessor implementation that caches the value it retrieves first until it is manually invalidated.

Created: 11.03.2006 17:02:27

Author:

Volker Bergmann

Constructor Summary

AccessorCache(java.lang.String name, Accessor<C,V> realAccessor)

Method Summary

java.util.List<? extends Accessor<?,?>>	getDependencies()
java.lang.String	getName()
V	getValue(C item)
void	invalidate()
boolean	isValid()

Methods inherited from class java.lang.Object

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

Constructor Detail

AccessorCache

public AccessorCache(java.lang.String name,
                     Accessor<C,V> realAccessor)

Method Detail

getName

public java.lang.String getName()

isValid

public boolean isValid()

invalidate

public void invalidate()

getValue

public V getValue(C item)

Specified by:

getValue in interface Accessor<C,V>

getDependencies

public java.util.List<? extends Accessor<?,?>> getDependencies()

Specified by:

getDependencies in interface DependentAccessor<C,V>