/*
* Copyright 2014 Attila Szegedi, Daniel Dekany, Jonathan Revusky
*
* 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 freemarker.cache;
/**
* Cache storage abstracts away the storage aspects of a cache - associating
* an object with a key, retrieval and removal via the key. It is actually a
* small subset of the {@link java.util.Map} interface.
* The implementations can be coded in a non-threadsafe manner as the natural
* user of the cache storage, {@link TemplateCache} does the necessary
* synchronization.
*
* @see freemarker.template.Configuration#setCacheStorage(CacheStorage)
*/
public interface CacheStorage {
public Object get(Object key);
public void put(Object key, Object value);
public void remove(Object key);
public void clear();
}