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/*
* Copyright 2005-2010 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wamblee.cache;
import java.io.Serializable;
import java.util.HashMap;
/**
* A very simple cache based on a HashMap, It never expires any entries, and has
* no bounds on its size.
*
* @author Erik Brakkee
*
*/
public class ForeverCache
implements Cache {
/**
* Cached entries.
*/
private HashMap map;
/**
* Constructs the cache.
*
*/
public ForeverCache() {
map = new HashMap();
}
/*
* (non-Javadoc)
*
* @see org.wamblee.cache.Cache#put(KeyType, ValueType)
*/
public synchronized void put(KeyType aKey, ValueType aValue) {
map.put(aKey, aValue);
}
/*
* (non-Javadoc)
*
* @see org.wamblee.cache.Cache#get(KeyType)
*/
public synchronized ValueType get(KeyType aKey) {
return map.get(aKey);
}
/*
* (non-Javadoc)
*
* @see org.wamblee.cache.Cache#remove(KeyType)
*/
public synchronized void remove(KeyType aKey) {
map.remove(aKey);
}
/*
* (non-Javadoc)
*
* @see org.wamblee.cache.Cache#clear()
*/
public synchronized void clear() {
map.clear();
}
}