Save This Page
Home » jdo2-model-2.3-ea-src » org.apache.jdo.model.jdo » [javadoc | source]
    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.model.jdo;
   19   
   20   /**
   21    * This interface provides constants denoting the identity type
   22    * of a persistence-capable class.
   23    *
   24    * @author Michael Bouschen
   25    */
   26   public class JDOIdentityType 
   27   {
   28       /** Constant representing an unspecified jdo identity */
   29       public static final int UNSPECIFIED = 0;
   30   
   31       /** Constant representing jdo identity managed by the database. */
   32       public static final int DATASTORE = 1;
   33   
   34       /** Constant representing jdo identity managed by the application. */
   35       public static final int APPLICATION = 2;
   36   
   37       /** Constant representing unmanaged jdo identity. */
   38       public static final int NONDURABLE = 4;
   39       
   40       /**
   41        * Returns a string representation of the specified identity type constant.
   42        * @param jdoIdentityType the JDO identity type, one of 
   43        * {@link #APPLICATION}, {@link #DATASTORE}, or {@link #NONDURABLE}
   44        * @return the string representation of the JDOIdentityType constant
   45        */
   46       public static String toString(int jdoIdentityType) {
   47           switch ( jdoIdentityType) {
   48           case DATASTORE :
   49               return "datastore"; //NOI18N
   50           case APPLICATION :
   51               return "application"; //NOI18N
   52           case NONDURABLE:
   53               return "nondurable"; //NOI18N
   54           default:
   55               return "UNSPECIFIED"; //NOI18N
   56           }
   57       }
   58       
   59       /**
   60        * Returns the JDOIdentityType constant, one of {@link #APPLICATION}, 
   61        * {@link #DATASTORE}, or {@link #NONDURABLE} for the specified string.
   62        * @param jdoIdentityType the string representation of the 
   63        * JDO identity type
   64        * @return the JDO identity type
   65        **/
   66       public static int toJDOIdentityType(String jdoIdentityType)
   67       {
   68           if ((jdoIdentityType == null) || (jdoIdentityType.length() == 0))
   69               return UNSPECIFIED;
   70    
   71           if ("datastore".equals(jdoIdentityType)) //NOI18N
   72               return DATASTORE;
   73           else if ("application".equals(jdoIdentityType)) //NOI18N
   74               return APPLICATION;
   75           else if ("nondurable".equals(jdoIdentityType)) //NOI18N
   76               return NONDURABLE;
   77           else
   78               return UNSPECIFIED;
   79       }
   80   }

Save This Page
Home » jdo2-model-2.3-ea-src » org.apache.jdo.model.jdo » [javadoc | source]