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Java > Open Source Codes > org > jboss > metadata > spi > retrieval > simple > SimpleAnnotationsItem


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2006, JBoss Inc., and individual contributors as indicated
4 * by the @authors tag. See the copyright.txt in the distribution for a
5 * full listing of individual contributors.
6 *
7 * This is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU Lesser General Public License as
9 * published by the Free Software Foundation; either version 2.1 of
10 * the License, or (at your option) any later version.
11 *
12 * This software is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this software; if not, write to the Free
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.simple;
23
24 import java.lang.annotation.Annotation JavaDoc;
25
26 import org.jboss.metadata.spi.MetaData;
27 import org.jboss.metadata.spi.retrieval.AnnotationItem;
28 import org.jboss.metadata.spi.retrieval.AnnotationsItem;
29
30 /**
31  * SimpleAnnotationsItem.
32  *
33  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
34  * @version $Revision: 45742 $
35  */
36 public class SimpleAnnotationsItem extends SimpleItem<Annotation JavaDoc[]> implements AnnotationsItem
37 {
38    /** No annotations */
39    public static final SimpleAnnotationsItem NO_ANNOTATIONS = new SimpleAnnotationsItem();
40    
41    /** The annotation items */
42    private AnnotationItem[] annotationItems;
43    
44    /** The annotations */
45    private Annotation JavaDoc[] annotations;
46    
47    /**
48     * Create a new SimpleAnnotationsItem with no annotations
49     */
50    protected SimpleAnnotationsItem()
51    {
52       this(NO_ANNOTATION_ITEMS);
53    }
54    
55    /**
56     * Create a new SimpleAnnotationsItem.
57     *
58     * @param annotationItems the annotation items
59     */
60    public SimpleAnnotationsItem(AnnotationItem[] annotationItems)
61    {
62       setAnnotationItems(annotationItems);
63    }
64
65    public Annotation JavaDoc[] getValue()
66    {
67       if (annotations == null)
68       {
69          Annotation JavaDoc[] temp = new Annotation JavaDoc[annotationItems.length];
70          for (int i = 0; i < temp.length; ++i)
71             temp[i] = annotationItems[i].getAnnotation();
72          annotations = temp;
73       }
74       return annotations;
75    }
76
77    public AnnotationItem[] getAnnotations()
78    {
79       return annotationItems;
80    }
81    
82    /**
83     * Set the annotation items
84     *
85     * @param annotationItems the annotation items
86     */
87    protected void setAnnotationItems(AnnotationItem[] annotationItems)
88    {
89       if (annotationItems == null)
90          throw new IllegalArgumentException JavaDoc("Null annotation items");
91       
92       this.annotationItems = annotationItems;
93       if (annotationItems.length == 0)
94          annotations = MetaData.NO_ANNOTATIONS;
95       else
96          annotations = null;
97    }
98 }
99
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