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;
020import org.jivesoftware.smackx.pubsub.packet.PubSubNamespace;
021
022/**
023 * Represents and item that has been deleted from a node.
024 * 
025 * @author Robin Collier
026 */
027public class RetractItem implements ExtensionElement
028{
029    private String id;
030
031    /**
032     * Construct a <tt>RetractItem</tt> with the specified id.
033     * 
034     * @param itemId The id if the item deleted
035     */
036    public RetractItem(String itemId)
037    {
038        if (itemId == null)
039            throw new IllegalArgumentException("itemId must not be 'null'");
040        id = itemId;
041    }
042
043    public String getId()
044    {
045        return id;
046    }
047
048    @Override
049    public String getElementName()
050    {
051        return "retract";
052    }
053
054    @Override
055    public String getNamespace()
056    {
057        return PubSubNamespace.EVENT.getXmlns();
058    }
059
060    @Override
061    public String toXML()
062    {
063        return "<retract id='" + id + "'/>";
064    }
065}