01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.commons.collections;
18:
19: /**
20: * Defines a simple key value pair.
21: * <p>
22: * A Map Entry has considerable additional semantics over and above a simple
23: * key-value pair. This interface defines the minimum key value, with just the
24: * two get methods.
25: *
26: * @since Commons Collections 3.0
27: * @version $Revision: 438363 $ $Date: 2006-08-30 05:48:00 +0100 (Wed, 30 Aug 2006) $
28: *
29: * @author Stephen Colebourne
30: */
31: public interface KeyValue {
32:
33: /**
34: * Gets the key from the pair.
35: *
36: * @return the key
37: */
38: Object getKey();
39:
40: /**
41: * Gets the value from the pair.
42: *
43: * @return the value
44: */
45: Object getValue();
46:
47: }
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