84 //
85 /** NON-DOM: Obtain and return the single shared object */
86 public static DOMImplementation getDOMImplementation() {
87 return singleton;
88 }
89 //
90 // DOMImplementation methods
91 //
92 /**
93 * Test if the DOM implementation supports a specific "feature" --
94 * currently meaning language and level thereof.
95 *
96 * @param feature The package name of the feature to test.
97 * In Level 1, supported values are "HTML" and "XML" (case-insensitive).
98 * At this writing, com.sun.org.apache.xerces.internal.dom supports only XML.
99 *
100 * @param version The version number of the feature being tested.
101 * This is interpreted as "Version of the DOM API supported for the
102 * specified Feature", and in Level 1 should be "1.0"
103 *
104 * @return true iff this implementation is compatable with the specified
105 * feature and version.
106 */
107 public boolean hasFeature(String feature, String version) {
108
109 boolean anyVersion = version == null || version.length() == 0;
110
111 if (feature.startsWith("+")) {
112 feature = feature.substring(1);
113 }
114 return (
115 feature.equalsIgnoreCase("Core")
116 && (anyVersion
117 || version.equals("1.0")
118 || version.equals("2.0")
119 || version.equals("3.0")))
120 || (feature.equalsIgnoreCase("XML")
121 && (anyVersion
122 || version.equals("1.0")
123 || version.equals("2.0")
124 || version.equals("3.0")))
125 || (feature.equalsIgnoreCase("LS")
126 && (anyVersion || version.equals("3.0")));
127 } // hasFeature(String,String):boolean
128
129
130 /**
131 * Introduced in DOM Level 2. <p>
132 *
133 * Creates an empty DocumentType node.
134 *
135 * @param qualifiedName The qualified name of the document type to be created.
136 * @param publicID The document type public identifier.
137 * @param systemID The document type system identifier.
138 * @since WD-DOM-Level-2-19990923
139 */
140 public DocumentType createDocumentType( String qualifiedName,
141 String publicID, String systemID) {
142 // REVISIT: this might allow creation of invalid name for DOCTYPE
143 // xmlns prefix.
144 // also there is no way for a user to turn off error checking.
145 checkQName(qualifiedName);
146 return new DocumentTypeImpl(null, qualifiedName, publicID, systemID);
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84 //
85 /** NON-DOM: Obtain and return the single shared object */
86 public static DOMImplementation getDOMImplementation() {
87 return singleton;
88 }
89 //
90 // DOMImplementation methods
91 //
92 /**
93 * Test if the DOM implementation supports a specific "feature" --
94 * currently meaning language and level thereof.
95 *
96 * @param feature The package name of the feature to test.
97 * In Level 1, supported values are "HTML" and "XML" (case-insensitive).
98 * At this writing, com.sun.org.apache.xerces.internal.dom supports only XML.
99 *
100 * @param version The version number of the feature being tested.
101 * This is interpreted as "Version of the DOM API supported for the
102 * specified Feature", and in Level 1 should be "1.0"
103 *
104 * @return true if this implementation is compatible with the specified
105 * feature and version.
106 */
107 public boolean hasFeature(String feature, String version) {
108
109 boolean anyVersion = version == null || version.length() == 0;
110
111 if (feature.startsWith("+")) {
112 feature = feature.substring(1);
113 }
114 return (feature.equalsIgnoreCase("Core")
115 && (anyVersion
116 || version.equals("1.0")
117 || version.equals("2.0")
118 || version.equals("3.0")))
119 || (feature.equalsIgnoreCase("XML")
120 && (anyVersion
121 || version.equals("1.0")
122 || version.equals("2.0")
123 || version.equals("3.0")))
124 || (feature.equalsIgnoreCase("LS")
125 && (anyVersion
126 || version.equals("3.0")))
127 || (feature.equalsIgnoreCase("ElementTraversal")
128 && (anyVersion
129 || version.equals("1.0")));
130 } // hasFeature(String,String):boolean
131
132
133 /**
134 * Introduced in DOM Level 2. <p>
135 *
136 * Creates an empty DocumentType node.
137 *
138 * @param qualifiedName The qualified name of the document type to be created.
139 * @param publicID The document type public identifier.
140 * @param systemID The document type system identifier.
141 * @since WD-DOM-Level-2-19990923
142 */
143 public DocumentType createDocumentType( String qualifiedName,
144 String publicID, String systemID) {
145 // REVISIT: this might allow creation of invalid name for DOCTYPE
146 // xmlns prefix.
147 // also there is no way for a user to turn off error checking.
148 checkQName(qualifiedName);
149 return new DocumentTypeImpl(null, qualifiedName, publicID, systemID);
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