1 /*
2 * Copyright 2003-2004 The Apache Software Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16 package org.apache.commons.collections;
17
18 /**
19 * Defines a simple key value pair.
20 * <p>
21 * A Map Entry has considerable additional semantics over and above a simple
22 * key-value pair. This interface defines the minimum key value, with just the
23 * two get methods.
24 *
25 * @since Commons Collections 3.0
26 * @version $Revision: 1.1 $ $Date: 2004/05/10 19:52:59 $
27 *
28 * @author Stephen Colebourne
29 */
30 public interface KeyValue {
31
32 /**
33 * Gets the key from the pair.
34 *
35 * @return the key
36 */
37 Object getKey();
38
39 /**
40 * Gets the value from the pair.
41 *
42 * @return the value
43 */
44 Object getValue();
45
46 }