| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.catalina.cluster.util; |
| |
| /** |
| * The class <b>LinkObject</b> implements an element |
| * for a linked list, consisting of a general |
| * data object and a pointer to the next element. |
| * |
| * @author Rainer Jung |
| * @author Peter Rossbach |
| * @version $Revision$ $Date$ |
| |
| */ |
| |
| public class LinkObject { |
| |
| private Object payload; |
| private LinkObject next; |
| private String key ; |
| |
| /** |
| * Construct a new element from the data object. |
| * Sets the pointer to null. |
| * |
| * @param key The key |
| * @param payload The data object. |
| */ |
| public LinkObject(String key,Object payload) { |
| this.payload = payload; |
| this.next = null; |
| this.key = key ; |
| } |
| |
| /** |
| * Set the next element. |
| * @param next The next element. |
| */ |
| public void append(LinkObject next) { |
| this.next = next; |
| } |
| |
| /** |
| * Get the next element. |
| * @return The next element. |
| */ |
| public LinkObject next() { |
| return next; |
| } |
| |
| /** |
| * Get the data object from the element. |
| * @return The data object from the element. |
| */ |
| public Object data() { |
| return payload; |
| } |
| |
| /** |
| * Get the unique message id |
| * @return the unique message id |
| */ |
| public Object getKey() { |
| return key; |
| } |
| |
| } |