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Java > Open Source Codes > org > objectweb > speedo > metadata > SpeedoElement


1 /**
2  * Speedo: an implementation of JDO compliant personality on top of JORM generic
3  * I/O sub-system.
4  * Copyright (C) 2001-2004 France Telecom R&D
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  *
21  *
22  * Contact: speedo@objectweb.org
23  *
24  * Authors: S.Chassande-Barrioz.
25  *
26  */
27
28 package org.objectweb.speedo.metadata;
29
30 import java.util.ArrayList JavaDoc;
31 import java.util.List JavaDoc;
32
33 /**
34  * Description of all elements which can contain an extension.
35  * @author S.Chassande-Barrioz
36  */
37 public abstract class SpeedoElement {
38     /**
39      * The extension corresponding to the element.
40      */
41     public List JavaDoc jdoExtension = new ArrayList JavaDoc();
42
43     public String JavaDoc getExtensionValueByKey(String JavaDoc key) {
44         SpeedoExtension se = getExtensionByKey(key);
45         return (se == null ? null : se.value);
46     }
47
48     public SpeedoExtension getExtensionByKey(String JavaDoc key) {
49         if (jdoExtension == null || key == null) {
50             return null;
51         }
52         for(int i=0; i<jdoExtension.size(); i++) {
53             SpeedoExtension se = (SpeedoExtension) jdoExtension.get(i);
54             if (key.equals(se.key)) {
55                 return se;
56             }
57         }
58         return null;
59     }
60     public SpeedoExtension getExtension(String JavaDoc vendor, String JavaDoc key) {
61         if (jdoExtension == null || vendor == null || key == null) {
62             return null;
63         }
64         for(int i=0; i<jdoExtension.size(); i++) {
65             SpeedoExtension se = (SpeedoExtension) jdoExtension.get(i);
66             if (vendor.equals(se.vendorName) && key.equals(se.key)) {
67                 return se;
68             }
69         }
70         return null;
71     }
72
73     public void addExtension(SpeedoExtension se) {
74         jdoExtension.add(se);
75     }
76 }
77
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