org.apache.velocity.runtime.resource
Class ResourceCacheImpl

java.lang.Object
  |
  +--org.apache.velocity.runtime.resource.ResourceCacheImpl

All Implemented Interfaces:

ResourceCache

public class ResourceCacheImpl

extends java.lang.Object

implements ResourceCache

Default implementation of the resource cache for the default ResourceManager.

Version:

$Id: ResourceCacheImpl.java,v 1.2 2002/02/12 19:08:06 dlr Exp $

Author:

Geir Magnusson Jr., Daniel Rall

Field Summary

protected java.util.Map	cache Cache storage, assumed to be thread-safe.
protected RuntimeServices	rsvc Runtime services, generally initialized by the initialize() method.

Constructor Summary

ResourceCacheImpl()

Method Summary

java.util.Iterator	enumerateKeys() returns an Iterator of Keys in the cache
Resource	get(java.lang.Object key) retrieves a Resource from the cache
void	initialize(RuntimeServices rs) initializes the ResourceCache.
Resource	put(java.lang.Object key, Resource value) stores a Resource in the cache
Resource	remove(java.lang.Object key) removes a Resource from the cache

Methods inherited from class java.lang.Object

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

Field Detail

cache

protected java.util.Map cache

Cache storage, assumed to be thread-safe.

rsvc

protected RuntimeServices rsvc

Runtime services, generally initialized by the initialize() method.

Constructor Detail

ResourceCacheImpl

public ResourceCacheImpl()

Method Detail

initialize

public void initialize(RuntimeServices rs)

Description copied from interface: ResourceCache

initializes the ResourceCache. Will be called before any utilization

Specified by:

initialize in interface ResourceCache

Following copied from interface: org.apache.velocity.runtime.resource.ResourceCache

Parameters:

rs - RuntimeServices to use for logging, etc

get

public Resource get(java.lang.Object key)

Description copied from interface: ResourceCache

retrieves a Resource from the cache

Specified by:

get in interface ResourceCache

Following copied from interface: org.apache.velocity.runtime.resource.ResourceCache

Parameters:

resourceKey - key for Resource to be retrieved

Returns:

Resource specified or null if not found

put

public Resource put(java.lang.Object key,
                    Resource value)

Description copied from interface: ResourceCache

stores a Resource in the cache

Specified by:

put in interface ResourceCache

Following copied from interface: org.apache.velocity.runtime.resource.ResourceCache

Parameters:

resourceKey - key to associate with the Resource

resource - Resource to be stored

Returns:

existing Resource stored under this key, or null if none

remove

public Resource remove(java.lang.Object key)

Description copied from interface: ResourceCache

removes a Resource from the cache

Specified by:

remove in interface ResourceCache

Following copied from interface: org.apache.velocity.runtime.resource.ResourceCache

Parameters:

resourceKey - resource to be removed

Resource - stored under key

enumerateKeys

public java.util.Iterator enumerateKeys()

Description copied from interface: ResourceCache

returns an Iterator of Keys in the cache

Specified by:

enumerateKeys in interface ResourceCache