1package gov.nist.core;
2
3/*
4 * Copyright 1999-2004 The Apache Software Foundation
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * You may obtain a copy of the License at
9 *
10 *     http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19import java.util.Map;
20
21/**
22 * This is simply a Map with slightly different semantics.
23 * Instead of returning an Object, it returns a Collection.
24 * So for example, you can put( key, new Integer(1) );
25 * and then a Object get( key ); will return you a Collection
26 * instead of an Integer.
27 * Thus, this is simply a tag interface.
28 *
29 * @since 2.0
30 * @author Christopher Berry
31 * @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
32 */
33public interface MultiMap extends Map {
34
35    public Object remove( Object key, Object item );
36
37}
38