keyvalue.java

apache beanutils开源项目源码

/*
 *  Copyright 2003-2004 The Apache Software Foundation
 *
 *  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.apache.commons.collections;

/**
 * Defines a simple key value pair.
 * <p>
 * A Map Entry has considerable additional semantics over and above a simple
 * key-value pair. This interface defines the minimum key value, with just the
 * two get methods.
 *
 * @since Commons Collections 3.0
 * @version $Revision: 1.1 $ $Date: 2004/05/10 19:52:59 $
 * 
 * @author Stephen Colebourne
 */
public interface KeyValue {

    /**
     * Gets the key from the pair.
     *
     * @return the key 
     */
    Object getKey();

    /**
     * Gets the value from the pair.
     *
     * @return the value
     */
    Object getValue();

}