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Java > Open Source Codes > org > dom4j > datatype > DatatypeElementFactory


1 /*
2  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
3  *
4  * This software is open source.
5  * See the bottom of this file for the licence.
6  */
7
8 package org.dom4j.datatype;
9
10 import com.sun.msv.datatype.xsd.XSDatatype;
11
12 import java.util.HashMap JavaDoc;
13 import java.util.Map JavaDoc;
14
15 import org.dom4j.Attribute;
16 import org.dom4j.DocumentFactory;
17 import org.dom4j.Element;
18 import org.dom4j.QName;
19
20 /**
21  * <p>
22  * <code>DatatypeElementFactory</code> is a factory for a specific Element in
23  * an XML Schema.
24  * </p>
25  *
26  * @author <a HREF="mailto:jstrachan@apache.org">James Strachan </a>
27  * @author Yuxin Ruan
28  * @version $Revision: 1.9 $
29  */
30 public class DatatypeElementFactory extends DocumentFactory {
31     private QName elementQName;
32
33     /**
34      * Cache of <code>XSDatatype</code> instances per Attribute
35      * <code>QName</code>
36      */
37     private Map JavaDoc attributeXSDatatypes = new HashMap JavaDoc();
38
39     /**
40      * Cache of <code>XSDatatype</code> instances per child Element
41      * <code>QName</code>
42      */
43     private Map JavaDoc childrenXSDatatypes = new HashMap JavaDoc();
44
45     public DatatypeElementFactory(QName elementQName) {
46         this.elementQName = elementQName;
47     }
48
49     /**
50      * DOCUMENT ME!
51      *
52      * @return the QName this element factory is associated with
53      */
54     public QName getQName() {
55         return elementQName;
56     }
57
58     /**
59      * DOCUMENT ME!
60      *
61      * @param attributeQName
62      * DOCUMENT ME!
63      *
64      * @return the <code>XSDatatype</code> associated with the given Attribute
65      * QName
66      */
67     public XSDatatype getAttributeXSDatatype(QName attributeQName) {
68         return (XSDatatype) attributeXSDatatypes.get(attributeQName);
69     }
70
71     /**
72      * Registers the given <code>XSDatatype</code> for the given
73      * &lt;attribute&gt; QNames
74      *
75      * @param attributeQName
76      * DOCUMENT ME!
77      * @param type
78      * DOCUMENT ME!
79      */
80     public void setAttributeXSDatatype(QName attributeQName, XSDatatype type) {
81         attributeXSDatatypes.put(attributeQName, type);
82     }
83
84     /**
85      * DOCUMENT ME!
86      *
87      * @param qname
88      * DOCUMENT ME!
89      *
90      * @return the <code>XSDatatype</code> associated with the given child
91      * Element QName
92      */
93     public XSDatatype getChildElementXSDatatype(QName qname) {
94         return (XSDatatype) childrenXSDatatypes.get(qname);
95     }
96
97     public void setChildElementXSDatatype(QName qname, XSDatatype dataType) {
98         childrenXSDatatypes.put(qname, dataType);
99     }
100
101     // DocumentFactory methods
102 // -------------------------------------------------------------------------
103 public Element createElement(QName qname) {
104         // the element may have its own element factory!
105 // use factory from the qname for datatype
106 XSDatatype dataType = getChildElementXSDatatype(qname);
107
108         if (dataType != null) {
109             return new DatatypeElement(qname, dataType);
110         }
111
112         DocumentFactory factory = qname.getDocumentFactory();
113
114         if (factory instanceof DatatypeElementFactory) {
115             DatatypeElementFactory dtFactory = (DatatypeElementFactory) factory;
116             dataType = dtFactory.getChildElementXSDatatype(qname);
117
118             if (dataType != null) {
119                 return new DatatypeElement(qname, dataType);
120             }
121         }
122
123         return super.createElement(qname);
124     }
125
126     public Attribute createAttribute(Element owner, QName qname, String JavaDoc value) {
127         XSDatatype dataType = getAttributeXSDatatype(qname);
128
129         if (dataType == null) {
130             return super.createAttribute(owner, qname, value);
131         } else {
132             return new DatatypeAttribute(qname, dataType, value);
133         }
134     }
135 }
136
137 /*
138  * Redistribution and use of this software and associated documentation
139  * ("Software"), with or without modification, are permitted provided that the
140  * following conditions are met:
141  *
142  * 1. Redistributions of source code must retain copyright statements and
143  * notices. Redistributions must also contain a copy of this document.
144  *
145  * 2. Redistributions in binary form must reproduce the above copyright notice,
146  * this list of conditions and the following disclaimer in the documentation
147  * and/or other materials provided with the distribution.
148  *
149  * 3. The name "DOM4J" must not be used to endorse or promote products derived
150  * from this Software without prior written permission of MetaStuff, Ltd. For
151  * written permission, please contact dom4j-info@metastuff.com.
152  *
153  * 4. Products derived from this Software may not be called "DOM4J" nor may
154  * "DOM4J" appear in their names without prior written permission of MetaStuff,
155  * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
156  *
157  * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
158  *
159  * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
160  * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
161  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
162  * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
163  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
164  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
165  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
166  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
167  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
168  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
169  * POSSIBILITY OF SUCH DAMAGE.
170  *
171  * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
172  */
173
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