1 package org.apache.jcs.engine;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.util.Hashtable;
23 import java.util.Map;
24
25 import org.apache.jcs.engine.behavior.ICache;
26
27 /***
28 * Used to associates a set of [cache listener to cache event queue] for a
29 * cache.
30 */
31 public class CacheListeners
32 {
33 /*** Description of the Field */
34 public final ICache cache;
35
36 /*** Map ICacheListener to ICacheEventQueue */
37 public final Map eventQMap = new Hashtable();
38
39 /***
40 * Constructs with the given cache.
41 * <p>
42 * @param cache
43 */
44 public CacheListeners( ICache cache )
45 {
46 if ( cache == null )
47 {
48 throw new IllegalArgumentException( "cache must not be null" );
49 }
50 this.cache = cache;
51 }
52 }