1 files changed, 87 insertions, 0 deletions
diff --git a/src/share/classes/com/sun/org/apache/xerces/internal/impl/dv/DTDDVFactory.java b/src/share/classes/com/sun/org/apache/xerces/internal/impl/dv/DTDDVFactory.java
new file mode 100644
index 0000000..5e13994
--- /dev/null
+++ b/src/share/classes/com/sun/org/apache/xerces/internal/impl/dv/DTDDVFactory.java
@@ -0,0 +1,87 @@
+/*
+ * reserved comment block
+ * DO NOT REMOVE OR ALTER!
+ */
+/*
+ * Copyright 2001, 2002,2004 The Apache Software Foundation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.sun.org.apache.xerces.internal.impl.dv;
+
+import java.util.Hashtable;
+
+/**
+ * The factory to create and return DTD types. The implementation should
+ * store the created datatypes in static data, so that they can be shared by
+ * multiple parser instance, and multiple threads.
+ *
+ * @xerces.internal
+ *
+ * @author Sandy Gao, IBM
+ *
+ */
+public abstract class DTDDVFactory {
+
+    private static final String DEFAULT_FACTORY_CLASS = "com.sun.org.apache.xerces.internal.impl.dv.dtd.DTDDVFactoryImpl";
+
+    /**
+     * Get an instance of the default DTDDVFactory implementation.
+     *
+     * @return  an instance of DTDDVFactory implementation
+     * @exception DVFactoryException  cannot create an instance of the specified
+     *                                class name or the default class name
+     */
+    public static synchronized final DTDDVFactory getInstance() throws DVFactoryException {
+        return getInstance(DEFAULT_FACTORY_CLASS);
+    }
+
+    /**
+     * Get an instance of DTDDVFactory implementation.
+     *
+     * @param factoryClass  name of the implementation to load.
+     * @return  an instance of DTDDVFactory implementation
+     * @exception DVFactoryException  cannot create an instance of the specified
+     *                                class name or the default class name
+     */
+    public static synchronized final DTDDVFactory getInstance(String factoryClass) throws DVFactoryException {
+
+        try {
+            // if the class name is not specified, use the default one
+            return (DTDDVFactory)
+                (ObjectFactory.newInstance(factoryClass, ObjectFactory.findClassLoader(), true));
+        } catch (ClassCastException e) {
+            throw new DVFactoryException("DTD factory class " + factoryClass + " does not extend from DTDDVFactory.");
+        }
+    }
+
+    // can't create a new object of this class
+    protected DTDDVFactory(){}
+
+    /**
+     * return a dtd type of the given name
+     *
+     * @param name  the name of the datatype
+     * @return      the datatype validator of the given name
+     */
+    public abstract DatatypeValidator getBuiltInDV(String name);
+
+    /**
+     * get all built-in DVs, which are stored in a hashtable keyed by the name
+     *
+     * @return      a hashtable which contains all datatypes
+     */
+    public abstract Hashtable getBuiltInTypes();
+
+}