| /** |
| * 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.geronimo.specs.jpa; |
| |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.util.tracker.ServiceTrackerCustomizer; |
| |
| /** |
| * Used to track JPA service providers in an OSGi environment. |
| * |
| * @version $Rev$ $Date$ |
| */ |
| public class PersistenceTracker implements ServiceTrackerCustomizer { |
| |
| private PersistenceActivator activator; |
| |
| public PersistenceTracker(PersistenceActivator activator) { |
| this.activator = activator; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.osgi.util.tracker.ServiceTrackerCustomizer#addingService(org.osgi.framework.ServiceReference) |
| */ |
| public Object addingService(ServiceReference arg0) { |
| return activator.addProvider(arg0); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.osgi.util.tracker.ServiceTrackerCustomizer#modifiedService(org.osgi.framework.ServiceReference, java.lang.Object) |
| */ |
| public void modifiedService(ServiceReference arg0, Object arg1) { |
| // handle as a remove - modify is unsupported |
| removedService(arg0, arg1); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.osgi.util.tracker.ServiceTrackerCustomizer#removedService(org.osgi.framework.ServiceReference, java.lang.Object) |
| */ |
| public void removedService(ServiceReference arg0, Object arg1) { |
| activator.removeProvider(arg0); |
| } |
| |
| } |