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/**
 * Copyright sp42 [email protected] 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 com.ajaxjs.util.cache;

/**
 * 缓存接口
 * 
 * @author sp42 [email protected]
 *
 * @param  键
 * @param  值
 */
public interface Cache {
	/**
	 * 根据key从缓存中获取对应的值
	 * 
	 * @param key 键
	 * @return 值
	 */
	public V get(K key);

	/**
	 * 添加缓存键值对
	 * 
	 * @param key   键
	 * @param value 值
	 * @return 值
	 */
	public V put(K key, V value);

	/**
	 * 根据 key 从缓存中删除对象
	 * 
	 * @param key 键
	 * @return 值
	 */
	public V remove(K key);

	/**
	 * 从缓存中清除所有的对象
	 */
	public void clear();
}