| /* |
| * Copyright (c) OSGi Alliance (2010, 2013). 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.osgi.framework.hooks.bundle; |
| |
| import java.util.Collection; |
| import org.osgi.annotation.versioning.ConsumerType; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.BundleEvent; |
| |
| /** |
| * OSGi Framework Bundle Event Hook Service. |
| * |
| * <p> |
| * Bundles registering this service will be called during framework lifecycle |
| * (install, start, stop, update, and uninstall bundle) operations. |
| * |
| * @ThreadSafe |
| * @author $Id: 0b986db904e41d5a5bfb5d28fc849ee967decf0d $ |
| */ |
| @ConsumerType |
| public interface EventHook { |
| |
| /** |
| * Bundle event hook method. This method is called prior to bundle event |
| * delivery when a bundle is installed, resolved, started, stopped, |
| * unresolved, or uninstalled. This method can filter the bundles which |
| * receive the event. |
| * <p> |
| * This method must be called by the framework one and only one time for |
| * each bundle event generated, this included bundle events which are |
| * generated when there are no bundle listeners registered. This method must |
| * be called on the same thread that is performing the action which |
| * generated the specified event. The specified collection includes bundle |
| * contexts with synchronous and asynchronous bundle listeners registered |
| * with them. |
| * |
| * @param event The bundle event to be delivered |
| * @param contexts A collection of Bundle Contexts for bundles which have |
| * listeners to which the specified event will be delivered. The |
| * implementation of this method may remove bundle contexts from the |
| * collection to prevent the event from being delivered to the |
| * associated bundles. The collection supports all the optional |
| * {@code Collection} operations except {@code add} and |
| * {@code addAll}. Attempting to add to the collection will result in |
| * an {@code UnsupportedOperationException}. The collection is not |
| * synchronized. |
| */ |
| void event(BundleEvent event, Collection<BundleContext> contexts); |
| } |