1 package org.apache.commons.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.rmi.dgc.VMID;
23
24 /**
25 * This is a static variable holder for the distribution auxiliaries that need something like a vmid.
26 */
27 public final class CacheInfo
28 {
29 /** shouldn't be instantiated */
30 private CacheInfo()
31 {
32 super();
33 }
34
35 /**
36 * Used to identify a client, so we can run multiple clients off one host.
37 * Need since there is no way to identify a client other than by host in
38 * rmi.
39 * <p>
40 * TODO: may have some trouble in failover mode if the cache keeps its old
41 * id. We may need to reset this when moving into failover.
42 */
43 private static final VMID vmid = new VMID();
44
45 /** By default this is the hashcode of the VMID */
46 public static final long listenerId = vmid.hashCode();
47 }