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1   package org.codehaus.plexus.component.discovery;
2   
3   /*
4    * Copyright 2001-2006 Codehaus Foundation.
5    *
6    * Licensed under the Apache License, Version 2.0 (the "License");
7    * you may not use this file except in compliance with the License.
8    * You may obtain a copy of the License at
9    *
10   *      http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing, software
13   * distributed under the License is distributed on an "AS IS" BASIS,
14   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   * See the License for the specific language governing permissions and
16   * limitations under the License.
17   */
18  
19  import org.codehaus.plexus.component.repository.ComponentSetDescriptor;
20  
21  /**
22   * Signals to a ComponentDiscoveryListener that an event has taken place
23   * involving a set of components. It is up to the Listener to decide what
24   * to do with that information.
25   */
26  public class ComponentDiscoveryEvent
27  {
28      private ComponentSetDescriptor componentSetDescriptor;
29  
30      private Object data;
31  
32      /**
33       * Constructs a <code>ComponentDiscoveryEvent</code> with a set of
34       * ComponentDescriptors.
35       * @param componentSetDescriptor a set of ComponentDescriptors
36       */
37      public ComponentDiscoveryEvent( ComponentSetDescriptor componentSetDescriptor )
38      {
39          this.componentSetDescriptor = componentSetDescriptor;
40      }
41  
42      public ComponentDiscoveryEvent( ComponentSetDescriptor componentSetDescriptor, Object data )
43      {
44          this.componentSetDescriptor = componentSetDescriptor;
45          this.data = data;
46      }
47  
48      /**
49       * Returns this event's set of ComponentDescriptors.
50       * @return this event's set of ComponentDescriptors
51       */
52      public ComponentSetDescriptor getComponentSetDescriptor()
53      {
54          return componentSetDescriptor;
55      }
56  
57      public Object getData()
58      {
59          return data;
60      }
61  }