edu.tum.cs.commons.factory
Class LRUCachingParameterizedFactory<T,P,X extends Exception>

java.lang.Object
  edu.tum.cs.commons.cache.CacheBase<I,H,E,X>
      edu.tum.cs.commons.cache.LRUCacheBase<I,I,E,X>
          edu.tum.cs.commons.cache.LRUStraightCacheBase<P,T,X>
              edu.tum.cs.commons.factory.LRUCachingParameterizedFactory<T,P,X>

Type Parameters:

T - Type that gets created by the factory.

P - Parameter that is used for creation.

X - Exception that can get thrown during execution of the factory method. If no exception is thrown, use NeverThrownRuntimeException.

All Implemented Interfaces:

IParameterizedFactory<T,P,X>

public class LRUCachingParameterizedFactory<T,P,X extends Exception>
extends LRUStraightCacheBase<P,T,X>
implements IParameterizedFactory<T,P,X>

Caching factory which can reuse created objects. Creation is delegated to an inner factory, while for caching a LRUCacheBase is used.

Version:

$Rev: 27446 $

Author:

hummelb, $Author: heineman $

Rating:

GREEN Hash: 5D97F2DF67786BC74BEB3611B6017360

Constructor Summary

LRUCachingParameterizedFactory(IParameterizedFactory<T,P,X> inner, int maxSize)
Constructor.

Method Summary

T	create(P parameter) Factory method
protected T	obtainItem(P identifier) Extenders of the cache class must implemented that method to define the item acquisition mechanism.

Methods inherited from class edu.tum.cs.commons.cache.LRUStraightCacheBase

getHashKey

Methods inherited from class edu.tum.cs.commons.cache.LRUCacheBase

getItem

Methods inherited from class java.lang.Object

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

Constructor Detail

LRUCachingParameterizedFactory

public LRUCachingParameterizedFactory(IParameterizedFactory<T,P,X> inner,
                                      int maxSize)

Constructor.

Method Detail

obtainItem

protected T obtainItem(P identifier)
                throws X extends Exception

Extenders of the cache class must implemented that method to define the item acquisition mechanism.

Delegates to the inner factory.

Specified by:

obtainItem in class CacheBase<P,P,T,X extends Exception>

Parameters:

identifier - identifer unambiguously identifying the item.

Returns:

the item to cache.

Throws:

X extends Exception

create

public T create(P parameter)
         throws X extends Exception

Factory method

Forwards to the LRUCacheBase.getItem(Object) method.

Specified by:

create in interface IParameterizedFactory<T,P,X extends Exception>

Throws:

X extends Exception