1 /*
2 * Copyright 2006-2009 the original author or authors.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 package org.springframework.osgi.service.importer.event;
18
19 import org.springframework.context.ApplicationEvent;
20 import org.springframework.osgi.service.importer.OsgiServiceDependency;
21 import org.springframework.util.Assert;
22
23 /**
24 * Base event type used for sending dependencies notifications. Usually these
25 * are sent by Spring-DM OSGi importers.
26 *
27 * @author Costin Leau
28 *
29 */
30 public abstract class OsgiServiceDependencyEvent extends ApplicationEvent {
31
32 private final OsgiServiceDependency dependency;
33
34
35 /**
36 * Constructs a new <code>OsgiServiceDependencyEvent</code> instance.
37 *
38 * @param source event source (usually the service importer)
39 * @param dependency dependency description
40 */
41 public OsgiServiceDependencyEvent(Object source, OsgiServiceDependency dependency) {
42 super(source);
43 Assert.notNull(dependency);
44 this.dependency = dependency;
45 }
46
47 /**
48 * Returns the OSGi service dependency filter for which this event is
49 * triggered.
50 *
51 * @return Returns the dependencyServiceFilter
52 */
53 public OsgiServiceDependency getServiceDependency() {
54 return dependency;
55 }
56 }