Please help me on to write UDF

Question

Hi,
The condition is,
Source Fields (Time)
PICKUP_TIME
DELKEY_TEXT_WE
Target Field(Date/Time)
EarliestTime
                        IF PICKUP_TIME is not equal to 00:00:00 then Read value from: PICKUP_TIME and reduce this by 30 min. and place the result into: EarliestTime. Else
if map value from DELKEY_TEXT_WE position 6 until 13
into: EarliestTime.
Please help me on this...like how to implement UDF
Thanks & Regards,
Y.Raj.

Answer 1

u can try:
// UDF <input parameters: String picktime, String DELKEYTEXT
String EarliestTime="";
          if(!picktime.equals("00:00:00")){
               SimpleDateFormat sdf = new SimpleDateFormat("HH:mm:ss");
               try{
                    Date newDt = sdf.parse(picktime);               
                    newDt.setMinutes(newDt.getMinutes()-30);
                    EarliestTime = sdf.format(newDt);               
               }catch(Exception e){
               return EarliestTime;
          }else{               
                  return DELKEYTEXT.substring(6,13);               
Regards
Ritu...
Edited by: Ritu Sinha on Sep 19, 2008 12:06 PM