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Java > Open Source Codes > com > sun > org > apache > xerces > internal > dom > ASDOMImplementationImpl


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5  * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
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57
58 package com.sun.org.apache.xerces.internal.dom;
59
60 import org.w3c.dom.DOMException JavaDoc;
61 import org.w3c.dom.DOMImplementation JavaDoc;
62
63 import com.sun.org.apache.xerces.internal.dom3.as.DOMImplementationAS;
64 import com.sun.org.apache.xerces.internal.dom3.as.ASModel;
65 import com.sun.org.apache.xerces.internal.dom3.as.DOMASBuilder;
66 import com.sun.org.apache.xerces.internal.dom3.as.DOMASWriter;
67 import com.sun.org.apache.xerces.internal.parsers.DOMASBuilderImpl;
68
69
70
71 /**
72  * The DOMImplementation class is description of a particular
73  * implementation of the Document Object Model. As such its data is
74  * static, shared by all instances of this implementation.
75  * <P>
76  * The DOM API requires that it be a real object rather than static
77  * methods. However, there's nothing that says it can't be a singleton,
78  * so that's how I've implemented it.
79  * <P>
80  * This particular class, along with DocumentImpl, supports the DOM
81  * Core, DOM Level 2 optional mofules, and Abstract Schemas (Experimental).
82  * @deprecated
83  * @version $Id: ASDOMImplementationImpl.java,v 1.5 2003/07/30 10:30:35 neeraj Exp $
84  * @since PR-DOM-Level-1-19980818.
85  */

86 public class ASDOMImplementationImpl extends DOMImplementationImpl
87     implements DOMImplementationAS {
88
89
90     // static
91

92     /** Dom implementation singleton. */
93     static ASDOMImplementationImpl singleton = new ASDOMImplementationImpl();
94
95
96     //
97
// Public methods
98
//
99

100     /** NON-DOM: Obtain and return the single shared object */
101     public static DOMImplementation JavaDoc getDOMImplementation() {
102         return singleton;
103     }
104
105     //
106
// DOM L3 Abstract Schemas:
107
// REVISIT: implement hasFeature()
108
//
109

110     /**
111      * DOM Level 3 WD - Experimental.
112      * Creates an ASModel.
113      * @param isNamespaceAware Allow creation of <code>ASModel</code> with
114      * this attribute set to a specific value.
115      * @return A <code>null</code> return indicates failure.what is a
116      * failure? Could be a system error.
117      */

118     public ASModel createAS(boolean isNamespaceAware){
119         return new ASModelImpl(isNamespaceAware);
120     }
121
122     /**
123      * DOM Level 3 WD - Experimental.
124      * Creates an <code>DOMASBuilder</code>.Do we need the method since we
125      * already have <code>DOMImplementationLS.createDOMParser</code>?
126      * @return DOMASBuilder
127      */

128     public DOMASBuilder createDOMASBuilder(){
129         return new DOMASBuilderImpl();
130     }
131
132
133     /**
134      * DOM Level 3 WD - Experimental.
135      * Creates an <code>DOMASWriter</code>.
136      * @return a DOMASWriter
137      */

138     public DOMASWriter createDOMASWriter(){
139         String JavaDoc msg = DOMMessageFormatter.formatMessage(DOMMessageFormatter.DOM_DOMAIN, "NOT_SUPPORTED_ERR", null);
140         throw new DOMException JavaDoc(DOMException.NOT_SUPPORTED_ERR, msg);
141     }
142     
143
144
145 } // class DOMImplementationImpl
146
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