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Java > Open Source Codes > org > jboss > metadata > spi > retrieval > basic > BasicMetaDataItem


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.basic;
23
24 import org.jboss.metadata.spi.loader.MetaDataLoader;
25 import org.jboss.metadata.spi.retrieval.MetaDataItem;
26
27 /**
28  * BasicMetaDataItem.
29  *
30  * @param <T> the item type
31  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
32  * @version $Revision: 57133 $
33  */
34 public class BasicMetaDataItem<T> extends BasicItem<T> implements MetaDataItem<T>
35 {
36    /** The meta data */
37    private T metaData;
38    
39    /** The name */
40    private String JavaDoc name;
41    
42    /**
43     * Create a new BaiscMetaDataItem.
44     *
45     * @param loader the loader
46     * @param name the name
47     * @param metaData the metadata
48     */
49    public BasicMetaDataItem(MetaDataLoader loader, String JavaDoc name, T metaData)
50    {
51       super(loader);
52
53       if (name == null)
54          throw new IllegalArgumentException JavaDoc("Null name");
55       
56       this.name = name;
57       this.metaData = metaData;
58    }
59
60    public T getValue()
61    {
62       return metaData;
63    }
64    
65    public String JavaDoc getName()
66    {
67       return name;
68    }
69
70    public boolean equals(Object JavaDoc object)
71    {
72       if (object == this)
73          return true;
74       if (object == null || object instanceof MetaDataItem == false)
75          return false;
76       
77       MetaDataItem other = (MetaDataItem) object;
78       return getName().equals(other.getName());
79    }
80    
81    public int hashCode()
82    {
83       return getName().hashCode();
84    }
85    
86    public String JavaDoc toString()
87    {
88       return getValue().toString();
89    }
90 }
91
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