Examples of java.text.FieldPosition

java.text.FieldPosition
FieldPosition is a simple class used by Format and its subclasses to identify fields in formatted output. Fields can be identified in two ways:
- By an integer constant, whose names typically end with _FIELD. The constants are defined in the various subclasses of Format.
- By a Format.Field constant, see ERA_FIELD and its friends in DateFormat for an example.
FieldPosition keeps track of the position of the field within the formatted output with two indices: the index of the first character of the field and the index of the last character of the field.
One version of the format method in the various Format classes requires a FieldPosition object as an argument. You use this format method to perform partial formatting or to get information about the formatted output (such as the position of a field).
If you are interested in the positions of all attributes in the formatted string use the Format method formatToCharacterIterator. @version 1.22 11/17/05 @author Mark Davis @see java.text.Format

        }
        //System.out.println("start = " + d);
        // set the unit
        sdf.applyPattern("yyyy-MM-dd HH:mm:ss Z");
        setUnit("hours since "
                + sdf.format(d, new StringBuffer(), new FieldPosition(0)));
        // parse the increment
        // vvkk where
        // vv     =       an integer number, 1 or 2 digits
        // kk     =       mn (minute)
        //                hr (hour)

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  // ---------------------------------------------------------------------------


  public void setCurrencyFormat(String sFormat) throws NullPointerException {
    sCurrencyFormat = sFormat;
    oCurrencyFormat = new DecimalFormat(sFormat);
    oCurrencyFieldP = new FieldPosition(NumberFormat.FRACTION_FIELD);
    oCurrencyBuffer = new StringBuffer();
  }

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  format.setLocale (locale);


  // return the formatted message
  StringBuffer  result = new StringBuffer ();


  result = format.format (parameters, result, new FieldPosition (0));
  return result.toString ();
    }

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    public String getMonth(int m) {
        GregorianCalendar month = new GregorianCalendar(2000, m, 1);
        SimpleDateFormat dateFormat = new SimpleDateFormat("MMMM",
                this.currentLocale);
        StringBuffer result = new StringBuffer();
        result = dateFormat.format(month.getTime(), result, new FieldPosition(
                DateFormat.MONTH_FIELD));
        return result.toString();
    }

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        day.add(Calendar.DATE, d);


        SimpleDateFormat dateFormat = new SimpleDateFormat("EEE",
                this.currentLocale);
        StringBuffer result = new StringBuffer();
        result = dateFormat.format(day.getTime(), result, new FieldPosition(
                DateFormat.DAY_OF_WEEK_FIELD));
        return result.toString();
    }

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    if ( this.opened.getTime() != that.opened.getTime() )
      {
      mods = true;
      buf.append( prefix );
      buf.append( "Open date changed from '" );
      dFmt.format( that.opened, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "' to '" );
      dFmt.format( this.opened, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "'.\n" );
      }


    // CLOSE DATE
    if ( this.closed == null && that.closed == null )
      {
      // No mods
      }
    else if ( this.closed == null && that.closed != null )
      {
      mods = true;
      buf.append( prefix );
      buf.append( "Close date unset, previous value was '" );
      dFmt.format( that.closed, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "'.\n" );
      }
    else if ( this.closed != null && that.closed == null )
      {
      mods = true;
      buf.append( prefix );
      buf.append( "Close date set to '" );
      dFmt.format( this.closed, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "'.\n" );
      }
    else if ( this.closed.getTime() != that.closed.getTime() )
      {
      mods = true;
      buf.append( prefix );
      buf.append( "Close date changed from '" );
      dFmt.format( that.closed, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "' to '" );
      dFmt.format( this.closed, dBuf, new FieldPosition(0) );
      buf.append( dBuf );
      buf.append( "'.\n" );
      }


    if ( ! this.envdesc.equals( that.envdesc ) )

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   * @param number Zahl
   * @return formatierte Darstellung der Zahl
   */
  private static String format(NumberFormat nf, Number number) {
    StringBuffer sb = new StringBuffer();
    sb = nf.format(number, sb, new FieldPosition(0));
    return sb.toString();
  }

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    String queuePattern="yyyy-MM-dd.HHmmss.S";
    Date d = new Date();
      StringBuffer bb = new StringBuffer();
      SimpleDateFormat s =  new SimpleDateFormat(queuePattern);


      FieldPosition fp = new FieldPosition(0);
      StringBuffer b =  s.format(d,bb,fp);
      
      String dumpFileName = logDirectory  + "/" + "sos." + b + ".email";
      try{
        mail.dumpMessageToFile(dumpFileName,true);

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//--------------------------------------------------------------------------------dumpMessageToFile
    private void dumpMessageToFile(boolean withAttachment) throws Exception{
    Date d = new Date();
    StringBuffer bb = new StringBuffer();
    SimpleDateFormat s =  new SimpleDateFormat(queuePattern);
    FieldPosition fp = new FieldPosition(0);
    StringBuffer b =  s.format(d,bb,fp);
    lastGeneratedFileName = queueDir  + "/" + queuePraefix + b + ".email";
    File f = new File(lastGeneratedFileName);
    while (f.exists()){
      b =  s.format(d,bb,fp);

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      Date d = new Date();
      StringBuffer bb = new StringBuffer();
      SimpleDateFormat s =  new SimpleDateFormat(queuePattern);


    FieldPosition fp = new FieldPosition(0);
    StringBuffer b =  s.format(d,bb,fp);
    
    
    dumpedFileName = queueDir + queuePraefix + b + ".email";

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