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    1   /*
    2    * Licensed to the Apache Software Foundation (ASF) under one or more
    3    * contributor license agreements.  See the NOTICE file distributed with
    4    * this work for additional information regarding copyright ownership.
    5    * The ASF licenses this file to You under the Apache License, Version 2.0
    6    * (the "License"); you may not use this file except in compliance with
    7    * the License.  You may obtain a copy of the License at
    8    * 
    9    *     http://www.apache.org/licenses/LICENSE-2.0
   10    * 
   11    * Unless required by applicable law or agreed to in writing, software 
   12    * distributed under the License is distributed on an "AS IS" BASIS, 
   13    * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
   14    * See the License for the specific language governing permissions and 
   15    * limitations under the License.
   16    */
   17   
   18   package org.apache.jdo.impl.model.jdo.caching;
   19   
   20   import org.apache.jdo.model.java.JavaModel;
   21   import org.apache.jdo.model.jdo.JDOModel;
   22   import org.apache.jdo.model.jdo.JDOModelFactory;
   23   
   24   import org.apache.jdo.impl.model.jdo.JDOModelFactoryImplDynamic;
   25   
   26   /**
   27    * Factory for caching JDOModel instances.
   28    *
   29    * @author Michael Bouschen
   30    * @since 1.1
   31    * @version 1.1
   32    */
   33   public class JDOModelFactoryImplCaching extends JDOModelFactoryImplDynamic {
   34   
   35       /** The singleton JDOModelFactory instance. */    
   36       private static JDOModelFactory jdoModelFactory = 
   37           new JDOModelFactoryImplCaching();
   38   
   39       /**
   40        * Creates new JDOModelFactoryImplCaching. This constructor
   41        * should not be called directly; instead, the singleton access
   42        * method  {@link #getInstance} should be used.
   43        */
   44       protected JDOModelFactoryImplCaching() {}
   45   
   46       /** 
   47        * Get an instance of JDOModelFactoryImpl.
   48        * @return an instance of JDOModelFactoryImpl
   49        */    
   50       public static JDOModelFactory getInstance() {
   51           return jdoModelFactory;
   52       }
   53       
   54       /**
   55        * Creates a new empty JDOModel instance. 
   56        * The returned JDOModel instance uses the specified flag
   57        * <code>loadXMLMetadataDefault</code> to set the default behavior 
   58        * for the creation of new JDOClass instances  using methods 
   59        * {@link JDOModel#createJDOClass(String)} and 
   60        * {@link JDOModel#getJDOClass(String)} for which the caller doesn't 
   61        * explicitly specify whether to read XML metatdata or not.
   62        * @param loadXMLMetadataDefault the default setting for whether to 
   63        * read XML metatdata in JDOModel's methods for JDOClass creation.
   64        */
   65       public JDOModel createJDOModel(JavaModel javaModel,
   66                                      boolean loadXMLMetadataDefault) {
   67           return new JDOModelImplCaching(javaModel, loadXMLMetadataDefault);
   68       }
   69   
   70   }

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