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diff --git a/libjava/org/w3c/dom/Entity.java b/libjava/org/w3c/dom/Entity.java
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+/*
+ * Copyright (c) 2000 World Wide Web Consortium,
+ * (Massachusetts Institute of Technology, Institut National de
+ * Recherche en Informatique et en Automatique, Keio University). All
+ * Rights Reserved. This program is distributed under the W3C's Software
+ * Intellectual Property License. This program is distributed in the
+ * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
+ * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
+ */
+
+package org.w3c.dom;
+
+/**
+ * This interface represents an entity, either parsed or unparsed, in an XML 
+ * document. Note that this models the entity itself not the entity 
+ * declaration. <code>Entity</code> declaration modeling has been left for a 
+ * later Level of the DOM specification.
+ * <p>The <code>nodeName</code> attribute that is inherited from 
+ * <code>Node</code> contains the name of the entity.
+ * <p>An XML processor may choose to completely expand entities before the 
+ * structure model is passed to the DOM; in this case there will be no 
+ * <code>EntityReference</code> nodes in the document tree.
+ * <p>XML does not mandate that a non-validating XML processor read and 
+ * process entity declarations made in the external subset or declared in 
+ * external parameter entities. This means that parsed entities declared in 
+ * the external subset need not be expanded by some classes of applications, 
+ * and that the replacement value of the entity may not be available. When 
+ * the replacement value is available, the corresponding <code>Entity</code> 
+ * node's child list represents the structure of that replacement text. 
+ * Otherwise, the child list is empty.
+ * <p>The DOM Level 2 does not support editing <code>Entity</code> nodes; if a 
+ * user wants to make changes to the contents of an <code>Entity</code>, 
+ * every related <code>EntityReference</code> node has to be replaced in the 
+ * structure model by a clone of the <code>Entity</code>'s contents, and 
+ * then the desired changes must be made to each of those clones instead. 
+ * <code>Entity</code> nodes and all their descendants are readonly.
+ * <p>An <code>Entity</code> node does not have any parent.If the entity 
+ * contains an unbound namespace prefix, the <code>namespaceURI</code> of 
+ * the corresponding node in the <code>Entity</code> node subtree is 
+ * <code>null</code>. The same is true for <code>EntityReference</code> 
+ * nodes that refer to this entity, when they are created using the 
+ * <code>createEntityReference</code> method of the <code>Document</code> 
+ * interface. The DOM Level 2 does not support any mechanism to resolve 
+ * namespace prefixes.
+ * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Core-20001113'>Document Object Model (DOM) Level 2 Core Specification</a>.
+ */
+public interface Entity extends Node {
+    /**
+     * The public identifier associated with the entity, if specified. If the 
+     * public identifier was not specified, this is <code>null</code>.
+     */
+    public String getPublicId();
+
+    /**
+     * The system identifier associated with the entity, if specified. If the 
+     * system identifier was not specified, this is <code>null</code>.
+     */
+    public String getSystemId();
+
+    /**
+     * For unparsed entities, the name of the notation for the entity. For 
+     * parsed entities, this is <code>null</code>. 
+     */
+    public String getNotationName();
+
+}