Package java.util

Examples of java.util.Hashtable


      switch (translateDBColumnType(md.getColumnTypeName(i))) {
 
      case STRING :
  //System.err.println("String --> nominal");
  attributeTypes[i - 1] = Attribute.NOMINAL;
  nominalIndexes[i - 1] = new Hashtable();
  nominalStrings[i - 1] = new FastVector();
  break;
      case TEXT:
  //System.err.println("Text --> string");
  attributeTypes[i - 1] = Attribute.STRING;
  nominalIndexes[i - 1] = new Hashtable();
  nominalStrings[i - 1] = new FastVector();
  break;
      case BOOL:
  //System.err.println("boolean --> nominal");
  attributeTypes[i - 1] = Attribute.NOMINAL;
  nominalIndexes[i - 1] = new Hashtable();
  nominalIndexes[i - 1].put("false", new Double(0));
  nominalIndexes[i - 1].put("true", new Double(1));
  nominalStrings[i - 1] = new FastVector();
  nominalStrings[i - 1].addElement("false");
  nominalStrings[i - 1].addElement("true");
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   * @throws Exception if an attribute is numeric
   */
  private void findLargeItemSets() throws Exception {
   
    FastVector kMinusOneSets, kSets;
    Hashtable hashtable;
    int necSupport, necMaxSupport,i = 0;
   
   
   
    // Find large itemsets
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     * @throws Exception if an attribute is numeric
     */
    private void findLargeCarItemSets() throws Exception {
 
  FastVector kMinusOneSets, kSets;
  Hashtable hashtable;
  int necSupport, necMaxSupport,i = 0;
 
  // Find large itemsets
 
  // minimum support
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  /**
   * Default constructor.
   */
  private ServiceManager() {
    registry = new Hashtable();
  }
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      logmon.log(BasicLevel.DEBUG,
                 "NTransaction, delete(" + dirName + ", " + name + ")");

    Object key = OperationKey.newKey(dirName, name);

    Hashtable log = ((Context) perThreadContext.get()).getLog();
    Operation op = Operation.alloc(Operation.DELETE, dirName, name);
    Operation old = (Operation) log.put(key, op);
    if (old != null) {
      if (old.type == Operation.CREATE) op.type = Operation.NOOP;
      old.free();
    }
  }
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      logmon.log(BasicLevel.DEBUG, "NTransaction, commit");
   
    // TODO (AF): Only the call to logManager.commit and the phase change needs to
    // be synchronized..
   
    Hashtable log = ((Context) perThreadContext.get()).getLog();
    if (! log.isEmpty()) {
      logManager.commit(log);
      log.clear();
    }

    // Change the transaction state to COMMIT or FREE
    if (release) {
      setPhase(FREE);
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      if (syncOnWrite)
        mode = "rwd";
      else
        mode = "rw";

      log = new Hashtable(LogMemoryCapacity);
     
      long start = System.currentTimeMillis();
     
      logidx = -1;
      logFile = new LogFile[nbLogFile];
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      logmon.log(BasicLevel.DEBUG,
                 "NTransaction, delete(" + dirName + ", " + name + ")");

    Object key = OperationKey.newKey(dirName, name);

    Hashtable log = ((Context) perThreadContext.get()).getLog();
    Operation op = Operation.alloc(Operation.DELETE, dirName, name);
    Operation old = (Operation) log.put(key, op);
    if (old != null) {
      if (old.type == Operation.CREATE) op.type = Operation.NOOP;
      old.free();
    }
  }
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      throw new IllegalStateException("Can not commit.");

    if (logmon.isLoggable(BasicLevel.DEBUG))
      logmon.log(BasicLevel.DEBUG, "NTransaction, commit(" + release + ')');
   
    Hashtable log = ((Context) perThreadContext.get()).getLog();
    if (! log.isEmpty()) {
      logFile.commit(log);
      log.clear();
    }

    setPhase(COMMIT);

    if (logmon.isLoggable(BasicLevel.DEBUG))
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      if (syncOnWrite)
        mode = "rwd";
      else
        mode = "rw";
     
      log = new Hashtable(LogMemoryCapacity);

      //  Search for old log file, then apply all committed operation,
      // finally cleans it.
      File logFilePN = new File(dir, "log");
      if ((logFilePN.exists()) && (logFilePN.length() > 0)) {
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