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Java > Open Source Codes > org > jboss > kernel > plugins > deployment > xml > ConstructorHandler


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.kernel.plugins.deployment.xml;
23
24 import javax.xml.namespace.NamespaceContext JavaDoc;
25 import javax.xml.namespace.QName JavaDoc;
26
27 import org.jboss.beans.metadata.plugins.AbstractConstructorMetaData;
28 import org.jboss.xb.binding.sunday.unmarshalling.DefaultElementHandler;
29 import org.jboss.xb.binding.sunday.unmarshalling.ElementBinding;
30 import org.xml.sax.Attributes JavaDoc;
31
32 /**
33  * ConstructorHandler.
34  *
35  * @author <a HREF="adrian@jboss.com">Adrian Brock</a>
36  * @version $Revision: 43020 $
37  */
38 public class ConstructorHandler extends DefaultElementHandler
39 {
40    /** The handler */
41    public static final ConstructorHandler HANDLER = new ConstructorHandler();
42
43    public Object JavaDoc startElement(Object JavaDoc parent, QName JavaDoc name, ElementBinding element)
44    {
45       return new AbstractConstructorMetaData();
46    }
47
48    public void attributes(Object JavaDoc o, QName JavaDoc elementName, ElementBinding element, Attributes JavaDoc attrs, NamespaceContext JavaDoc nsCtx)
49    {
50       AbstractConstructorMetaData constructor = (AbstractConstructorMetaData) o;
51       for (int i = 0; i < attrs.getLength(); ++i)
52       {
53          String JavaDoc localName = attrs.getLocalName(i);
54          if ("factoryClass".equals(localName))
55             constructor.setFactoryClass(attrs.getValue(i));
56          else if ("factoryMethod".equals(localName))
57             constructor.setFactoryMethod(attrs.getValue(i));
58       }
59    }
60
61    public Object JavaDoc endElement(Object JavaDoc o, QName JavaDoc qName, ElementBinding element)
62    {
63       AbstractConstructorMetaData constructor = (AbstractConstructorMetaData) o;
64       if (constructor.getFactory() != null || constructor.getFactoryClass() != null)
65          if (constructor.getFactoryMethod() == null)
66             throw new IllegalArgumentException JavaDoc("Constructor needs a factoryMethod attribute when there is a factoryClass attribute or factory element.");
67       return constructor;
68    }
69 }
70
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