gomp-20050608-branch/libjava/classpath/external/w3c_dom/org/w3c/dom/Entity.java

   1 /*
   2  * Copyright (c) 2004 World Wide Web Consortium,
   3  *
   4  * (Massachusetts Institute of Technology, European Research Consortium for
   5  * Informatics and Mathematics, Keio University). All Rights Reserved. This
   6  * work is distributed under the W3C(r) Software License [1] in the hope that
   7  * it will be useful, but WITHOUT ANY WARRANTY; without even the implied
   8  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   9  *
  10  * [1] http://www.w3.org/Consortium/Legal/2002/copyright-software-20021231
  11  */
  12
  13 package org.w3c.dom;
  14
  15 /**
  16  * This interface represents a known entity, either parsed or unparsed, in an
  17  * XML document. Note that this models the entity itself <em>not</em> the entity declaration.
  18  * <p>The <code>nodeName</code> attribute that is inherited from
  19  * <code>Node</code> contains the name of the entity.
  20  * <p>An XML processor may choose to completely expand entities before the
  21  * structure model is passed to the DOM; in this case there will be no
  22  * <code>EntityReference</code> nodes in the document tree.
  23  * <p>XML does not mandate that a non-validating XML processor read and
  24  * process entity declarations made in the external subset or declared in
  25  * parameter entities. This means that parsed entities declared in the
  26  * external subset need not be expanded by some classes of applications, and
  27  * 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'>
  28  * replacement text</a> is available, the corresponding <code>Entity</code> node's child list
  29  * represents the structure of that replacement value. Otherwise, the child
  30  * list is empty.
  31  * <p>DOM Level 3 does not support editing <code>Entity</code> nodes; if a
  32  * user wants to make changes to the contents of an <code>Entity</code>,
  33  * every related <code>EntityReference</code> node has to be replaced in the
  34  * structure model by a clone of the <code>Entity</code>'s contents, and
  35  * then the desired changes must be made to each of those clones instead.
  36  * <code>Entity</code> nodes and all their descendants are readonly.
  37  * <p>An <code>Entity</code> node does not have any parent.
  38  * <p ><b>Note:</b> If the entity contains an unbound namespace prefix, the
  39  * <code>namespaceURI</code> of the corresponding node in the
  40  * <code>Entity</code> node subtree is <code>null</code>. The same is true
  41  * for <code>EntityReference</code> nodes that refer to this entity, when
  42  * they are created using the <code>createEntityReference</code> method of
  43  * the <code>Document</code> interface.
  44  * <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>.
  45  */
  46 public interface Entity extends Node {
  47     /**
  48      * The public identifier associated with the entity if specified, and
  49      * <code>null</code> otherwise.
  50      */
  51     public String getPublicId();
  52
  53     /**
  54      * The system identifier associated with the entity if specified, and
  55      * <code>null</code> otherwise. This may be an absolute URI or not.
  56      */
  57     public String getSystemId();
  58
  59     /**
  60      * For unparsed entities, the name of the notation for the entity. For
  61      * parsed entities, this is <code>null</code>.
  62      */
  63     public String getNotationName();
  64
  65     /**
  66      * An attribute specifying the encoding used for this entity at the time
  67      * of parsing, when it is an external parsed entity. This is
  68      * <code>null</code> if it an entity from the internal subset or if it
  69      * is not known.
  70      * @since DOM Level 3
  71      */
  72     public String getInputEncoding();
  73
  74     /**
  75      * An attribute specifying, as part of the text declaration, the encoding
  76      * of this entity, when it is an external parsed entity. This is
  77      * <code>null</code> otherwise.
  78      * @since DOM Level 3
  79      */
  80     public String getXmlEncoding();
  81
  82     /**
  83      * An attribute specifying, as part of the text declaration, the version
  84      * number of this entity, when it is an external parsed entity. This is
  85      * <code>null</code> otherwise.
  86      * @since DOM Level 3
  87      */
  88     public String getXmlVersion();
  89
  90 }