ConstructionContext


1   // Copyright 2007 The Apache Software Foundation
2   //
3   // Licensed under the Apache License, Version 2.0 (the "License");
4   // you may not use this file except in compliance with the License.
5   // You may obtain a copy of the License at
6   //
7   //     http://www.apache.org/licenses/LICENSE-2.0
8   //
9   // Unless required by applicable law or agreed to in writing, software
10  // distributed under the License is distributed on an "AS IS" BASIS,
11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12  // See the License for the specific language governing permissions and
13  // limitations under the License.
14  
15  package org.apache.hivemind.definition;
16  
17  import org.apache.hivemind.internal.Module;
18  import org.apache.hivemind.internal.RegistryInfrastructure;
19  
20  /**
21   * Interface that provides access to information and services needed
22   * during the construction of an {@link ExtensionDefinition extension}
23   * or {@link ExtensionPointDefinition extension point}.
24   * 
25   * @author Achim Huegen
26   */
27  public interface ConstructionContext
28  {
29      /**
30       * @return  the module that defined the constructor that is constructed now.
31       */
32      public Module getDefiningModule();
33      
34      /**
35       * @see Module#getService(String, Class)
36       */
37      public Object   getService(String   serviceId, Class   serviceInterface);
38      
39      /**
40       * @see Module#getService(Class)
41       */
42      public Object   getService(Class   serviceInterface);
43      
44      /**
45       * @see Module#containsService(Class)
46       */
47      public boolean containsService(Class   serviceInterface);
48  
49      /**
50       * @see Module#getConfiguration(String)
51       */
52      public Object   getConfiguration(String   configurationId);
53      
54      /**
55       * Returns a reference to the {@link RegistryInfrastructure}. 
56       * This allows access to services and configurations without the visibility checks
57       * performed by the other getter methods. 
58       * 
59       * @return  the registry 
60       */
61      public RegistryInfrastructure getRegistry();
62  }
63
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