com.wiley.posa3.caching
Class CacheImpl

java.lang.Object
  com.wiley.posa3.caching.CacheImpl

All Implemented Interfaces:

Cache

public class CacheImpl

extends java.lang.Object

implements Cache

CacheImpl is an implementation of the Cache interface. It maintains and manages the cached resources and provides an API that allows acquisition and release of these resources.

Version:

1.0

Author:

Michael Kircher, Prashant Jain

Constructor Summary

CacheImpl()

Method Summary

Resource	acquire(Identity id) Acquire the resource from the cache corresponding to id.
void	release(Resource resource) Put the released resource into the cache so that it can be acquired later.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheImpl

public CacheImpl()

Method Detail

release

public void release(Resource resource)

Put the released resource into the cache so that it can be acquired later.

Specified by:

release in interface Cache

Parameters:

resource - the resource that has been released and is to be put into the cache

acquire

public Resource acquire(Identity id)
                 throws ResourceNotFound

Acquire the resource from the cache corresponding to id.

Specified by:

acquire in interface Cache

Parameters:

id - the identity of the resource that needs to be acquired.

Returns:

Resource corresponding to the Identity that should be in the cache.

Throws:

ResourceNotFound - is thrown if the resource corresponding to Identity was not found in the cache