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Java > Open Source Codes > org > jboss > aop > metadata > DynamicSimpleClassMetadataLoader


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.aop.metadata;
23
24 import java.util.Date JavaDoc;
25
26 /**
27  * An extension of SimpleClassMetadataLoader, allowing us to add metadata without resorting to XML.
28  * Intention is for dynamically adding metadata at runtime
29  *
30  * @author <a HREF="kabir.khan@jboss.com">Kabir Khan</a>
31  * @version $Revision$
32  */
33 public class DynamicSimpleClassMetadataLoader extends SimpleClassMetaDataLoader
34 {
35    SimpleClassMetaDataBinding binding;
36    String JavaDoc tag;
37    
38    public DynamicSimpleClassMetadataLoader(String JavaDoc name, String JavaDoc tag, String JavaDoc classExpr)
39    {
40       String JavaDoc bname = name;
41       if (bname == null)
42       {
43          //Make 100% sure the name is unique
44 long millis = System.currentTimeMillis();
45          long random = (long)(Math.random() * millis);
46          bname = tag + ":" + classExpr + millis + ":" + random;
47       }
48       binding = new SimpleClassMetaDataBinding(this, bname, tag, classExpr);
49    }
50    
51    public DynamicSimpleClassMetadataLoader(String JavaDoc tag, String JavaDoc classExpr)
52    {
53       this(null, tag, classExpr);
54    }
55    
56    public ClassMetaDataBinding getClassMetaDataBinding()
57    {
58       return binding;
59    }
60    
61    public void addDefaultMetaData(String JavaDoc attr, Object JavaDoc val)
62    {
63       binding.addDefaultMetaData(binding.getTag(), attr, val);
64    }
65    
66    public void addClassMetaData(String JavaDoc attr, Object JavaDoc val)
67    {
68       binding.addClassMetaData(binding.getTag(), attr, val);
69    }
70
71    public void addMethodMetaData(String JavaDoc methodExpr, String JavaDoc attr, Object JavaDoc val)
72    {
73       binding.queueMethodMetaData(methodExpr, binding.getTag(), attr, val);
74    }
75    
76    public void addFieldMetaData(String JavaDoc fieldName, String JavaDoc attr, Object JavaDoc val)
77    {
78       binding.queueFieldMetaData(fieldName, binding.getTag(), attr, val);
79    }
80    
81    public void addConstructorMetaData(String JavaDoc constructorExpr, String JavaDoc attr, Object JavaDoc val)
82    {
83       binding.queueConstructorMetaData(constructorExpr, binding.getTag(), attr, val);
84    }
85 }
86
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