1 /*
2  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
3  *
4  * This code is free software; you can redistribute it and/or modify it
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7  * particular file as subject to the "Classpath" exception as provided
8  * by Oracle in the LICENSE file that accompanied this code.
9  *
10  * This code is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13  * version 2 for more details (a copy is included in the LICENSE file that
14  * accompanied this code).
15  *
16  * You should have received a copy of the GNU General Public License version
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18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19  *
20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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24 
25 /*
26  * This file is available under and governed by the GNU General Public
27  * License version 2 only, as published by the Free Software Foundation.
28  * However, the following notice accompanied the original version of this
29  * file and, per its terms, should not be removed:
30  *
31  * Copyright (c) 2004 World Wide Web Consortium,
32  *
33  * (Massachusetts Institute of Technology, European Research Consortium for
34  * Informatics and Mathematics, Keio University). All Rights Reserved. This
35  * work is distributed under the W3C(r) Software License [1] in the hope that
36  * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
37  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
38  *
39  * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
40  */
41 
42 package org.w3c.dom;
43 
44 /**
45  * This interface represents a known entity, either parsed or unparsed, in an
46  * XML document. Note that this models the entity itself <em>not</em> the entity declaration.
47  * <p>The <code>nodeName</code> attribute that is inherited from
48  * <code>Node</code> contains the name of the entity.
49  * <p>An XML processor may choose to completely expand entities before the
50  * structure model is passed to the DOM; in this case there will be no
51  * <code>EntityReference</code> nodes in the document tree.
52  * <p>XML does not mandate that a non-validating XML processor read and
53  * process entity declarations made in the external subset or declared in
54  * parameter entities. This means that parsed entities declared in the
55  * external subset need not be expanded by some classes of applications, and
56  * that the replacement text of the entity may not be available. When the <a href='http://www.w3.org/TR/2004/REC-xml-20040204#intern-replacement'>
57  * replacement text</a> is available, the corresponding <code>Entity</code> node's child list
58  * represents the structure of that replacement value. Otherwise, the child
59  * list is empty.
60  * <p>DOM Level 3 does not support editing <code>Entity</code> nodes; if a
61  * user wants to make changes to the contents of an <code>Entity</code>,
62  * every related <code>EntityReference</code> node has to be replaced in the
63  * structure model by a clone of the <code>Entity</code>'s contents, and
64  * then the desired changes must be made to each of those clones instead.
65  * <code>Entity</code> nodes and all their descendants are readonly.
66  * <p>An <code>Entity</code> node does not have any parent.
67  * <p ><b>Note:</b> If the entity contains an unbound namespace prefix, the
68  * <code>namespaceURI</code> of the corresponding node in the
69  * <code>Entity</code> node subtree is <code>null</code>. The same is true
70  * for <code>EntityReference</code> nodes that refer to this entity, when
71  * they are created using the <code>createEntityReference</code> method of
72  * the <code>Document</code> interface.
73  * <p>See also the <a href='http://www.w3.org/TR/2004/REC-DOM-Level-3-Core-20040407'>Document Object Model (DOM) Level 3 Core Specification</a>.
74  */
75 public interface Entity extends Node {
76     /**
77      * The public identifier associated with the entity if specified, and
78      * <code>null</code> otherwise.
79      */
getPublicId()80     public String getPublicId();
81 
82     /**
83      * The system identifier associated with the entity if specified, and
84      * <code>null</code> otherwise. This may be an absolute URI or not.
85      */
getSystemId()86     public String getSystemId();
87 
88     /**
89      * For unparsed entities, the name of the notation for the entity. For
90      * parsed entities, this is <code>null</code>.
91      */
getNotationName()92     public String getNotationName();
93 
94     /**
95      * An attribute specifying the encoding used for this entity at the time
96      * of parsing, when it is an external parsed entity. This is
97      * <code>null</code> if it an entity from the internal subset or if it
98      * is not known.
99      * @since 1.5, DOM Level 3
100      */
getInputEncoding()101     public String getInputEncoding();
102 
103     /**
104      * An attribute specifying, as part of the text declaration, the encoding
105      * of this entity, when it is an external parsed entity. This is
106      * <code>null</code> otherwise.
107      * @since 1.5, DOM Level 3
108      */
getXmlEncoding()109     public String getXmlEncoding();
110 
111     /**
112      * An attribute specifying, as part of the text declaration, the version
113      * number of this entity, when it is an external parsed entity. This is
114      * <code>null</code> otherwise.
115      * @since 1.5, DOM Level 3
116      */
getXmlVersion()117     public String getXmlVersion();
118 
119 }
120