Issue in segment creation for File to IDOC mapping

Question

Hi,
I have file with many feilds, i need to create a segment in IDOC for unique combination of 2 feilds.
eg:
408
430050
segment
208
430050
segment
208
430050
208
460100
segment
208
452010
segment
408
432000
segment
208
432000
segment
the value for the combination of first column and 2nd column are equal it should trigger one segment instead of 2segments else(for different combination) trigger the segment
eg from table:
in table for 208,430050 is occuring twice but it should trigger only one segment(unique combinations of 2 columns), for all other combinations it should trigger one segment for each.

Answer 1

Hi Swapna,
You can use below mapping.
UDF:
Execution type : All Values Of Context
public void removeDuplicates(String[] context, ResultList result, Container container) throws StreamTransformationException{
HashSet<String> hashSet = new HashSet<String>();      
        for (int i = 0; i < context.length; i++) {
            if (hashSet.add(context[i]))
               result.addValue(context[i]);             
            else {
               result.addSuppress();              
Reards,
Praveen.