content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 mf.org.apache.xerces.jaxp.validation;
  
  import mf.org.apache.xerces.xni.grammars.Grammar;
  import mf.org.apache.xerces.xni.grammars.XMLGrammarDescription;
  import mf.org.apache.xerces.xni.grammars.XMLGrammarPool;
  
  /**
   * <p>Implementation of Schema for W3C XML Schemas which
   * contains schema components from one target namespace.</p>
   *
   * @author Michael Glavassevich, IBM
   * @version $Id: SimpleXMLSchema.java 542516 2007-05-29 13:44:47Z mrglavas $
   */
  final class SimpleXMLSchema extends AbstractXMLSchema implements XMLGrammarPool {
  
      /**
       * Zero length grammar array.
       */
      private static final Grammar[] ZERO_LENGTH_GRAMMAR_ARRAY = new Grammar[0];
  
      private final Grammar fGrammar;
      private final Grammar[] fGrammars;
      private final XMLGrammarDescription fGrammarDescription;
  
      public SimpleXMLSchema(Grammar grammar) {
          fGrammar = grammar;
          fGrammars = new Grammar[]{grammar};
          fGrammarDescription = grammar.getGrammarDescription();
      }
      
      /*
       * XMLGrammarPool methods
       */
  
      @Override
      public Grammar[] retrieveInitialGrammarSet(String grammarType) {
          return XMLGrammarDescription.XML_SCHEMA.equals(grammarType) ?
                  fGrammars.clone() : ZERO_LENGTH_GRAMMAR_ARRAY;
      }
  
      @Override
      public void cacheGrammars(String grammarType, Grammar[] grammars) {
      }
  
      @Override
      public Grammar retrieveGrammar(XMLGrammarDescription desc) {
          return fGrammarDescription.equals(desc) ? fGrammar : null;
      }
  
      @Override
      public void lockPool() {
      }
  
      @Override
      public void unlockPool() {
      }
  
      @Override
      public void clear() {
      }
      
      /*
       * XSGrammarPoolContainer methods
       */
  
      @Override
      public XMLGrammarPool getGrammarPool() {
          return this;
      }
  
      @Override
      public boolean isFullyComposed() {
          return true;
      }
  
  } // SimpleXMLSchema
  