MetaDataToAnnotationBridge


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14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
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19  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21  */
22  package org.jboss.metadata.spi.retrieval.helper;
23  
24  import java.lang.annotation.Annotation  ;
25  
26  import org.jboss.metadata.spi.retrieval.AnnotationItem;
27  import org.jboss.metadata.spi.retrieval.MetaDataItem;
28  
29  /**
30   * MetaDataToAnnotationBridge.
31   * 
32   * @param <T> the annotation type
33   * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
34   * @version $Revision: 57133 $
35   */
36  public class MetaDataToAnnotationBridge<T extends Annotation  > implements AnnotationItem<T>
37  {
38     /** The meta data */
39     private MetaDataItem metaData;
40  
41     /**
42      * Create a new MetaDataToAnnotationBridge.
43      * 
44      * @param metaData the meta data
45      */
46     public MetaDataToAnnotationBridge(MetaDataItem metaData)
47     {
48        if (metaData == null)
49           throw new IllegalArgumentException  ("Null metaData");
50        this.metaData = metaData;
51     }
52  
53     public boolean isCachable()
54     {
55        return metaData.isCachable();
56     }
57  
58     public boolean isValid()
59     {
60        return metaData.isValid();
61     }
62  
63     @SuppressWarnings  ("unchecked")
64     public T getValue()
65     {
66        return (T) metaData.getValue();
67     }
68  
69     public T getAnnotation()
70     {
71        return getValue();
72     }
73  
74     public String   getName()
75     {
76        return getValue().annotationType().getName();
77     }
78  }
79
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