| /* |
| * 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.apache.felix.dm; |
| |
| /** |
| * @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> |
| */ |
| public interface DependencyService { |
| /** |
| * Will be called when the dependency becomes available. |
| * |
| * @param dependency the dependency |
| */ |
| public void dependencyAvailable(Dependency dependency); |
| |
| /** |
| * Will be called when the dependency changes. |
| * |
| * @param dependency the dependency |
| */ |
| public void dependencyUnavailable(Dependency dependency); |
| |
| /** |
| * Will be called when the dependency becomes unavailable. |
| * |
| * @param dependency the dependency |
| */ |
| public void dependencyChanged(Dependency dependency); |
| |
| public Object getService(); // is also defined on the Service interface |
| public void initService(); // was an implementation method TODO we use it in ConfDepImpl but should not (probably) |
| public boolean isRegistered(); // impl method |
| public Object[] getCompositionInstances(); // impl method |
| |
| public boolean isInstantiated(); |
| |
| /** |
| * Can be called by the dependency whenever it wants to invoke callback methods. |
| */ |
| public void invokeCallbackMethod(Object[] instances, String methodName, Class[][] signatures, Object[][] parameters); |
| |
| public Component getServiceInterface(); |
| } |