Coverage report

  %line %branch
org.apache.torque.oid.IDGeneratorFactory
44% 
78% 

 1  
 package org.apache.torque.oid;
 2  
 
 3  
 /*
 4  
  * Licensed to the Apache Software Foundation (ASF) under one
 5  
  * or more contributor license agreements.  See the NOTICE file
 6  
  * distributed with this work for additional information
 7  
  * regarding copyright ownership.  The ASF licenses this file
 8  
  * to you under the Apache License, Version 2.0 (the
 9  
  * "License"); you may not use this file except in compliance
 10  
  * with the License.  You may obtain a copy of the License at
 11  
  *
 12  
  *   http://www.apache.org/licenses/LICENSE-2.0
 13  
  *
 14  
  * Unless required by applicable law or agreed to in writing,
 15  
  * software distributed under the License is distributed on an
 16  
  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 17  
  * KIND, either express or implied.  See the License for the
 18  
  * specific language governing permissions and limitations
 19  
  * under the License.
 20  
  */
 21  
 
 22  
 import org.apache.torque.adapter.DB;
 23  
 import org.apache.torque.adapter.IDMethod;
 24  
 
 25  
 /**
 26  
  * A factory which instantiates {@link
 27  
  * org.apache.torque.oid.IdGenerator} implementations.
 28  
  *
 29  
  * @author <a href="mailto:dlr@collab.net">Daniel Rall</a>
 30  
  * @version $Id: IDGeneratorFactory.java 476550 2006-11-18 16:08:37Z tfischer $
 31  
  */
 32  
 public class IDGeneratorFactory
 33  
 {
 34  
     /**
 35  
      * Private constructor to prevent initialisation.
 36  
      *
 37  
      * This class contains only static methods and thus should not be
 38  
      * instantiated.
 39  
      */
 40  
     private IDGeneratorFactory()
 41  0
     {
 42  0
     }
 43  
 
 44  
     /**
 45  
      * The list of ID generation method types which have associated
 46  
      * {@link org.apache.torque.oid.IdGenerator} implementations.
 47  
      */
 48  30
     public static final String[] ID_GENERATOR_METHODS =
 49  
     {
 50  
         IDMethod.NATIVE, IDMethod.AUTO_INCREMENT, IDMethod.SEQUENCE
 51  
     };
 52  
 
 53  
     /**
 54  
      * Factory method which instantiates {@link
 55  
      * org.apache.torque.oid.IdGenerator} implementations based on the
 56  
      * return value of the provided adapter's {@link
 57  
      * org.apache.torque.adapter.DB#getIDMethodType()} method.
 58  
      * Returns <code>null</code> for unknown types.
 59  
      *
 60  
      * @param dbAdapter The type of adapter to create an ID generator for.
 61  
      * @return The appropriate ID generator (possibly <code>null</code>).
 62  
      */
 63  
     public static IdGenerator create(DB dbAdapter, String name)
 64  
     {
 65  90
         String idMethod = dbAdapter.getIDMethodType();
 66  90
         if (IDMethod.AUTO_INCREMENT.equals(idMethod))
 67  
         {
 68  90
             return new AutoIncrementIdGenerator(dbAdapter, name);
 69  
         }
 70  0
         else if (IDMethod.SEQUENCE.equals(idMethod))
 71  
         {
 72  0
             return new SequenceIdGenerator(dbAdapter, name);
 73  
         }
 74  
         else
 75  
         {
 76  0
             return null;
 77  
         }
 78  
     }
 79  
 }

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