001/** 002 * 003 * Copyright the original author or authors 004 * 005 * Licensed under the Apache License, Version 2.0 (the "License"); 006 * you may not use this file except in compliance with the License. 007 * You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.jivesoftware.smackx.pubsub; 018 019import org.jivesoftware.smack.packet.ExtensionElement; 020 021import org.jivesoftware.smackx.pubsub.packet.PubSubNamespace; 022 023/** 024 * Represents and item that has been deleted from a node. 025 * 026 * @author Robin Collier 027 */ 028public class RetractItem implements ExtensionElement 029{ 030 private final String id; 031 032 /** 033 * Construct a <tt>RetractItem</tt> with the specified id. 034 * 035 * @param itemId The id if the item deleted 036 */ 037 public RetractItem(String itemId) 038 { 039 if (itemId == null) 040 throw new IllegalArgumentException("itemId must not be 'null'"); 041 id = itemId; 042 } 043 044 public String getId() 045 { 046 return id; 047 } 048 049 @Override 050 public String getElementName() 051 { 052 return "retract"; 053 } 054 055 @Override 056 public String getNamespace() 057 { 058 return PubSubNamespace.EVENT.getXmlns(); 059 } 060 061 @Override 062 public String toXML() 063 { 064 return "<retract id='" + id + "'/>"; 065 } 066}