1 /** 2 * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License"); 3 * you may not use this file except in compliance with the License. 4 * You may obtain a copy of the License at 5 * 6 * http://www.apache.org/licenses/LICENSE-2.0 7 * 8 * Unless required by applicable law or agreed to in writing, software 9 * distributed under the License is distributed on an "AS IS" BASIS, 10 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 11 * See the License for the specific language governing permissions and 12 * limitations under the License. 13 */ 14 package org.jivesoftware.smackx.pubsub; 15 16 import java.util.Collections; 17 import java.util.List; 18 19 /** 20 * Represents an event in which items have been deleted from the node. 21 * 22 * @author Robin Collier 23 */ 24 public class ItemDeleteEvent extends SubscriptionEvent 25 { 26 private List<String> itemIds = Collections.EMPTY_LIST; 27 28 /** 29 * Constructs an <tt>ItemDeleteEvent</tt> that indicates the the supplied 30 * items (by id) have been deleted, and that the event matches the listed 31 * subscriptions. The subscriptions would have been created by calling 32 * {@link LeafNode#subscribe(String)}. 33 * 34 * @param nodeId The id of the node the event came from 35 * @param deletedItemIds The item ids of the items that were deleted. 36 * @param subscriptionIds The subscriptions that match the event. 37 */ ItemDeleteEvent(String nodeId, List<String> deletedItemIds, List<String> subscriptionIds)38 public ItemDeleteEvent(String nodeId, List<String> deletedItemIds, List<String> subscriptionIds) 39 { 40 super(nodeId, subscriptionIds); 41 42 if (deletedItemIds == null) 43 throw new IllegalArgumentException("deletedItemIds cannot be null"); 44 itemIds = deletedItemIds; 45 } 46 47 /** 48 * Get the item id's of the items that have been deleted. 49 * 50 * @return List of item id's 51 */ getItemIds()52 public List<String> getItemIds() 53 { 54 return Collections.unmodifiableList(itemIds); 55 } 56 57 @Override toString()58 public String toString() 59 { 60 return getClass().getName() + " [subscriptions: " + getSubscriptions() + "], [Deleted Items: " + itemIds + ']'; 61 } 62 } 63