| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.qi4j.library.osgi; |
| |
| |
| import java.lang.reflect.Method; |
| import org.osgi.framework.ServiceReference; |
| |
| /** |
| * The fallback strategy is invoked when the OSGi service is not available and a method call is invoked. |
| * <p> |
| * The FallbackStrategy is declared on the {@link OSGiServiceImporter} service declaration, like; |
| * <pre><code> |
| * FallbackStrategy strategy = new MyStrategy(); |
| * module.services( OSGiServiceImporter.class ) |
| * .identifiedBy( "osgi" ) |
| * .setMetaInfo( bundleContext ) |
| * .setMetaInfo( strategy ); |
| * </code></pre> |
| */ |
| public interface FallbackStrategy { |
| Object invoke(final ServiceReference reference, Method method, Object... args); |
| } |