/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You 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.collections4;

/**

 * 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.

 * </p>

 *

 * @param <K> the type of the key

 * @param <V> the type of the value

 * @since 3.0

 */

public interface KeyValue<K, V> {

    /**

     * Gets the key from the pair.

     *

     * @return the key

     */

    K getKey();

    /**

     * Gets the value from the pair.

     *

     * @return the value

     */

    V getValue();

}