1 /*
2 * Copyright 2000-2005 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.xml.transform.dom;
27
28 import javax.xml.transform.Source;
29
30 import org.w3c.dom.Node;
31
32 /**
33 * <p>Acts as a holder for a transformation Source tree in the
34 * form of a Document Object Model (DOM) tree.</p>
35 *
36 * <p>Note that XSLT requires namespace support. Attempting to transform a DOM
37 * that was not contructed with a namespace-aware parser may result in errors.
38 * Parsers can be made namespace aware by calling
39 * {@link javax.xml.parsers.DocumentBuilderFactory#setNamespaceAware(boolean awareness)}.</p>
40 *
41 * @author <a href="Jeff.Suttor@Sun.com">Jeff Suttor</a>
42 * @see <a href="http://www.w3.org/TR/DOM-Level-2">Document Object Model (DOM) Level 2 Specification</a>
43 */
44 public class DOMSource implements Source {
45
46 /**
47 * <p><code>Node</code> to serve as DOM source.</p>
48 */
49 private Node node;
50
51 /**
52 * <p>The base ID (URL or system ID) from where URLs
53 * will be resolved.</p>
54 */
55 private String systemID;
56
57 /** If {@link javax.xml.transform.TransformerFactory#getFeature}
58 * returns true when passed this value as an argument,
59 * the Transformer supports Source input of this type.
60 */
61 public static final String FEATURE =
62 "http://javax.xml.transform.dom.DOMSource/feature";
63
64 /**
65 * <p>Zero-argument default constructor. If this constructor is used, and
66 * no DOM source is set using {@link #setNode(Node node)} , then the
67 * <code>Transformer</code> will
68 * create an empty source {@link org.w3c.dom.Document} using
69 * {@link javax.xml.parsers.DocumentBuilder#newDocument()}.</p>
70 *
71 * @see javax.xml.transform.Transformer#transform(Source xmlSource, Result outputTarget)
72 */
73 public DOMSource() { }
74
75 /**
76 * Create a new input source with a DOM node. The operation
77 * will be applied to the subtree rooted at this node. In XSLT,
78 * a "/" pattern still means the root of the tree (not the subtree),
79 * and the evaluation of global variables and parameters is done
80 * from the root node also.
81 *
82 * @param n The DOM node that will contain the Source tree.
83 */
84 public DOMSource(Node n) {
85 setNode(n);
86 }
87
88 /**
89 * Create a new input source with a DOM node, and with the
90 * system ID also passed in as the base URI.
91 *
92 * @param node The DOM node that will contain the Source tree.
93 * @param systemID Specifies the base URI associated with node.
94 */
95 public DOMSource(Node node, String systemID) {
96 setNode(node);
97 setSystemId(systemID);
98 }
99
100 /**
101 * Set the node that will represents a Source DOM tree.
102 *
103 * @param node The node that is to be transformed.
104 */
105 public void setNode(Node node) {
106 this.node = node;
107 }
108
109 /**
110 * Get the node that represents a Source DOM tree.
111 *
112 * @return The node that is to be transformed.
113 */
114 public Node getNode() {
115 return node;
116 }
117
118 /**
119 * Set the base ID (URL or system ID) from where URLs
120 * will be resolved.
121 *
122 * @param systemID Base URL for this DOM tree.
123 */
124 public void setSystemId(String systemID) {
125 this.systemID = systemID;
126 }
127
128 /**
129 * Get the base ID (URL or system ID) from where URLs
130 * will be resolved.
131 *
132 * @return Base URL for this DOM tree.
133 */
134 public String getSystemId() {
135 return this.systemID;
136 }
137 }
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