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Java > Open Source Codes > org > jboss > beans > metadata > plugins > StringValueMetaData


1 /*
2 * JBoss, Home of Professional Open Source
3 * Copyright 2005, 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.beans.metadata.plugins;
23
24 import org.jboss.logging.Logger;
25 import org.jboss.reflect.spi.TypeInfo;
26 import org.jboss.beans.metadata.spi.MetaDataVisitor;
27 import org.jboss.beans.metadata.spi.MetaDataVisitorNode;
28
29 /**
30  * String value.
31  *
32  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
33  * @version $Revision: 56024 $
34  */
35 public class StringValueMetaData extends AbstractTypeMetaData
36 {
37    /** The log */
38    private static final Logger log = Logger.getLogger(StringValueMetaData.class);
39
40    /**
41     * Create a new string value
42     */
43    public StringValueMetaData()
44    {
45    }
46
47    /**
48     * Create a new string value
49     *
50     * @param value the value
51     */
52    public StringValueMetaData(String JavaDoc value)
53    {
54       super(value);
55    }
56
57    /**
58     * Set the value
59     *
60     * @param value the value
61     */
62    public void setValue(String JavaDoc value)
63    {
64       super.setValue(value);
65    }
66
67    public void setValue(Object JavaDoc value)
68    {
69       if (value != null && value instanceof String JavaDoc == false)
70          throw new ClassCastException JavaDoc("value is not a String: " + value);
71       super.setValue(value);
72    }
73
74    public Object JavaDoc getValue(TypeInfo info, ClassLoader JavaDoc cl) throws Throwable JavaDoc
75    {
76       boolean trace = log.isTraceEnabled();
77       if (trace)
78          log.trace("getValue value=" + value + " type=" + type + " info=" + info);
79
80       TypeInfo typeInfo = getClassInfo(cl);
81       if (typeInfo == null)
82          typeInfo = info;
83       if (typeInfo == null)
84          throw new IllegalArgumentException JavaDoc("Unable to determine type for value: " + value);
85
86       return typeInfo.convertValue(value);
87    }
88
89    public Class JavaDoc getType(MetaDataVisitor visitor, MetaDataVisitorNode previous) throws Throwable JavaDoc
90    {
91       if (getType() != null)
92       {
93          return getClass(visitor, getType());
94       }
95       return super.getType(visitor, previous);
96    }
97
98 }
99
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