source/mir/storage/store/StoreContainerType.java

   1 package mir.storage.store;
   2
   3 /**
   4  * Title:         StoreContainerType
   5  *
   6  * Description:   StoreContainerTypes are uniqe Objects and are generated
   7  *                via @see valueOf(Class stocClass, int stocType).
   8  *                For every combination of stocClass and stocType there is
   9  *                only one Object instantiated.
  10  *
  11  * Copyright:     Copyright (c) 2002
  12  * Company:       indy
  13  *
  14  * @author        rk
  15  * @version 1.0
  16  */
  17
  18 import java.util.HashMap;
  19 import mir.misc.Logfile;
  20
  21 public class StoreContainerType {
  22
  23         public final static int     STOC_TYPE_UNKNOWN=-1;
  24         public final static int     STOC_TYPE_ENTITY=0;
  25         public final static int     STOC_TYPE_ENTITYLIST=1;
  26   public final static int     STOC_TYPE_MAX=STOC_TYPE_ENTITYLIST;
  27
  28         private static HashMap[]    uniqueTypes=new HashMap[STOC_TYPE_MAX+1];
  29         private static Logfile      storeLog;
  30         private Class               stocClass=null;
  31         private int                 stocType=STOC_TYPE_UNKNOWN;
  32
  33   static {
  34     uniqueTypes[STOC_TYPE_ENTITY]= new HashMap();
  35     uniqueTypes[STOC_TYPE_ENTITYLIST]=new HashMap();
  36
  37   }
  38
  39         private StoreContainerType() {}
  40
  41         private StoreContainerType(Class stocClass, int stocType) {
  42                 this.stocClass=stocClass;
  43                 this.stocType=stocType;
  44         }
  45
  46         public static StoreContainerType valueOf(Class stoc_class, int stoc_type) {
  47                 StoreContainerType returnStocType=null;
  48     if (stoc_type>=0 && stoc_type <= STOC_TYPE_MAX) {
  49       HashMap current = uniqueTypes[stoc_type];
  50       if ( current.containsKey(stoc_class) )
  51                           returnStocType=(StoreContainerType)current.get(stoc_class);
  52                   else {
  53                           returnStocType=new StoreContainerType(stoc_class,stoc_type);
  54                           current.put(stoc_class,returnStocType);
  55                   }
  56     }
  57                 return returnStocType;
  58         }
  59
  60   public int getStocType() { return stocType; }
  61   public Class getStocClass() { return stocClass; }
  62
  63         public String toString() {
  64                 StringBuffer sb = new StringBuffer(this.stocClass.toString());
  65                 sb.append("@").append(stringForStoreType(stocType));
  66                 return sb.toString();
  67         }
  68
  69         private static String stringForStoreType(int stocType) {
  70                 switch(stocType) {
  71                         case STOC_TYPE_ENTITY: return "ENTITY";
  72                         case STOC_TYPE_ENTITYLIST: return "ENTITYLIST";
  73                         default: return "UNKNOWN";
  74                 }
  75         }
  76 }