workspace/.metadata/.plugins/org.eclipse.core.resources/.history/6e/d081bb24666b001115b7b82f2f4ce01a

   1 package com.yuji.tdb.db;\r
   2 \r
   3 import javax.jdo.PersistenceManager;\r
   4 \r
   5 public class TrainDao {\r
   6         private static TrainDao instance = null;\r
   7         private PersistenceManager pm = PMFactory.get().getPersistenceManager();\r
   8                 \r
   9         public static TrainDao getInstance(){\r
  10                 if (instance == null){\r
  11                         instance = new TrainDao();\r
  12                 }\r
  13                 return instance;\r
  14         }\r
  15         \r
  16         private TrainDao(){\r
  17                 \r
  18         }\r
  19         \r
  20         public String get(String key){\r
  21                 KeyValue keyValue = pm.getObjectById(KeyValue.class, key);\r
  22                 if (keyValue == null){\r
  23                         return null;\r
  24                 }\r
  25                 return keyValue.getValue();\r
  26         }\r
  27         \r
  28         public void put(String key, String value){\r
  29                 KeyValue keyValue = new KeyValue(key, value);\r
  30                 pm.makePersistent(keyValue);\r
  31         }\r
  32 \r
  33         public void put(String key, int value){\r
  34                 put(key, String.valueOf(value));\r
  35         }\r
  36 }\r