| /* |
| * Copyright (c) OSGi Alliance (2008, 2010). 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.service; |
| |
| import java.util.Collection; |
| |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.ServiceReference; |
| |
| /** |
| * OSGi Framework Service Find Hook Service. |
| * |
| * <p> |
| * Bundles registering this service will be called during framework service find |
| * (get service references) operations. |
| * |
| * @ThreadSafe |
| * @version $Id: 4a939200fa6634a563379b057e11bd1b5d174b9d $ |
| */ |
| |
| public interface FindHook { |
| /** |
| * Find hook method. This method is called during the service find operation |
| * (for example, {@link BundleContext#getServiceReferences(String, String)} |
| * ). This method can filter the result of the find operation. |
| * |
| * @param context The bundle context of the bundle performing the find |
| * operation. |
| * @param name The class name of the services to find or {@code null} |
| * to find all services. |
| * @param filter The filter criteria of the services to find or |
| * {@code null} for no filter criteria. |
| * @param allServices {@code true} if the find operation is the result |
| * of a call to |
| * {@link BundleContext#getAllServiceReferences(String, String)} |
| * @param references A collection of Service References to be returned as a |
| * result of the find operation. The implementation of this method |
| * may remove service references from the collection to prevent the |
| * references from being returned to the bundle performing the find |
| * operation. 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 find(BundleContext context, String name, String filter, |
| boolean allServices, Collection<ServiceReference< ? >> references); |
| } |