| /** |
| * All rights reserved. Licensed 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.jivesoftware.smackx.pubsub; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Base class to represents events that are associated to subscriptions. |
| * |
| * @author Robin Collier |
| */ |
| abstract public class SubscriptionEvent extends NodeEvent |
| { |
| private List<String> subIds = Collections.EMPTY_LIST; |
| |
| /** |
| * Construct an event with no subscription id's. This can |
| * occur when there is only one subscription to a node. The |
| * event may or may not report the subscription id along |
| * with the event. |
| * |
| * @param nodeId The id of the node the event came from |
| */ |
| protected SubscriptionEvent(String nodeId) |
| { |
| super(nodeId); |
| } |
| |
| /** |
| * Construct an event with multiple subscriptions. |
| * |
| * @param nodeId The id of the node the event came from |
| * @param subscriptionIds The list of subscription id's |
| */ |
| protected SubscriptionEvent(String nodeId, List<String> subscriptionIds) |
| { |
| super(nodeId); |
| |
| if (subscriptionIds != null) |
| subIds = subscriptionIds; |
| } |
| |
| /** |
| * Get the subscriptions this event is associated with. |
| * |
| * @return List of subscription id's |
| */ |
| public List<String> getSubscriptions() |
| { |
| return Collections.unmodifiableList(subIds); |
| } |
| |
| /** |
| * Set the list of subscription id's for this event. |
| * |
| * @param subscriptionIds The list of subscription id's |
| */ |
| protected void setSubscriptions(List<String> subscriptionIds) |
| { |
| if (subscriptionIds != null) |
| subIds = subscriptionIds; |
| } |
| } |