001package org.apache.commons.jcs3.engine; 002 003/* 004 * Licensed to the Apache Software Foundation (ASF) under one 005 * or more contributor license agreements. See the NOTICE file 006 * distributed with this work for additional information 007 * regarding copyright ownership. The ASF licenses this file 008 * to you under the Apache License, Version 2.0 (the 009 * "License"); you may not use this file except in compliance 010 * with the License. You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, 015 * software distributed under the License is distributed on an 016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 017 * KIND, either express or implied. See the License for the 018 * specific language governing permissions and limitations 019 * under the License. 020 */ 021 022import java.rmi.dgc.VMID; 023 024/** 025 * This is a static variable holder for the distribution auxiliaries that need something like a vmid. 026 */ 027public final class CacheInfo 028{ 029 /** shouldn't be instantiated */ 030 private CacheInfo() 031 { 032 } 033 034 /** 035 * Used to identify a client, so we can run multiple clients off one host. 036 * Need since there is no way to identify a client other than by host in 037 * rmi. 038 * <p> 039 * TODO: may have some trouble in failover mode if the cache keeps its old 040 * id. We may need to reset this when moving into failover. 041 */ 042 private static final VMID vmid = new VMID(); 043 044 /** By default this is the hash code of the VMID */ 045 public static final long listenerId = vmid.hashCode(); 046}