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.impl.dtd;
  
  import java.util.Hashtable;
  
  import mf.org.apache.xerces.xni.grammars.XMLGrammarDescription;
  
  /**
   * This very simple class is the skeleton of what the DTDValidator could use
   * to store various grammars that it gets from the GrammarPool.  As in the
   * case of XSGrammarBucket, one thinks of this object as being closely
   * associated with its validator; when fully mature, this class will be
   * filled from the GrammarPool when the DTDValidator is invoked on a
   * document, and, if a new DTD grammar is parsed, the new set will be
   * offered back to the GrammarPool for possible inclusion.
   *
   * @author Neil Graham, IBM
   * @version $Id: DTDGrammarBucket.java 699892 2008-09-28 21:08:27Z mrglavas $
   * @xerces.internal
   */
  public class DTDGrammarBucket {
  
      // REVISIT:  make this class smarter and *way* more complete!
  
      //
      // Data
      //
  
      /**
       * Grammars associated with element root name.
       */
      protected final Hashtable fGrammars;
  
      // the unique grammar from fGrammars (or that we're
      // building) that is used in validation.
      protected DTDGrammar fActiveGrammar;
  
      // is the "active" grammar standalone?
      protected boolean fIsStandalone;
  
      //
      // Constructors
      //
  
      /**
       * Default constructor.
       */
      public DTDGrammarBucket() {
          fGrammars = new Hashtable();
      } // <init>()
  
      //
      // Public methods
      //
  
      /**
       * Puts the specified grammar into the grammar pool and associate it to
       * a root element name (this being internal, the lack of generality is irrelevant).
       *
       * @param grammar The grammar.
       */
      public void putGrammar(DTDGrammar grammar) {
          XMLDTDDescription desc = (XMLDTDDescription) grammar.getGrammarDescription();
          fGrammars.put(desc, grammar);
      } // putGrammar(DTDGrammar)
  
      // retrieve a DTDGrammar given an XMLDTDDescription
      public DTDGrammar getGrammar(XMLGrammarDescription desc) {
          return (DTDGrammar) (fGrammars.get(desc));
      } // putGrammar(DTDGrammar)
  
      public void clear() {
          fGrammars.clear();
          fActiveGrammar = null;
          fIsStandalone = false;
      } // clear()
  
      boolean getStandalone() {
          return fIsStandalone;
      }
  
      // is the active grammar standalone?  This must live here because
      // at the time the validator discovers this we don't yet know
      // what the active grammar should be (no info about root)
      void setStandalone(boolean standalone) {
          fIsStandalone = standalone;
      }
  
      DTDGrammar getActiveGrammar() {
          return fActiveGrammar;
      }
  
      // set the "active" grammar:
      void setActiveGrammar(DTDGrammar grammar) {
          fActiveGrammar = grammar;
      }
  } // class DTDGrammarBucket
  