Graphical Message Mapping - context issue

Question

Hi experts,
This is the source structure I have http://www.flickr.com/photos/45449397@N03/4273866518/
Now, for the target segment, I need to do the following:
For every block of EAN, I need to check the CHECK fields.
So for EAN 1111, I see 4 X's. But I need to check the distinct values.
So, 1 x for CHECK_1, 1 x for CHECK_2 and 1 X for CHECK_5.
As soon as there is an X, I need to create a target. Even if there are several X values in the same column, I only need it once.
--> target will be 3 different segment groups.
For EAN 2222, I only need 1 target segment group.
Please advice.
Thanks a lot!
Dimitri

Answer 1

I was about to write this that you will face this blank issue.
You have to remove those blank vaues. We have to choices to do that either we modify the current UDF or we write one more very samll advanced UDF of type "queue".
If we go for option 2 then the new UDF2 code will be like this..
while creating the udf just select the type as queue (you will see 3 options: single value, context & queue)
I guess the default argument will be "var1", if yes you can leave it as it is and the just copy and paset the code.
for (int i = 0; i < var1.length; i++ )
if (! var1<i>.equals(""))
result.addValue( var1<i> );
Now the mapping will be something like this..
Source --> old UDF--->RemoveContext--->new UDF --->Target.
But if you like to go for option 1 then first change the type of UDF to Queue and then in the code modify the "return" statement e.g.
if (RegTH.equals('X'))
result.addValue( ExpTH );
else if (RegHI.equals('X'))
result.addValue( ExpHI );
else if (RegLO.equals('X'))
result.addValue( ExpLO );
else if (RegPE.equals('X' ))
result.addValue( ExpPE );
else if (RegLOW.equals('X'))
result.addValue( ExpLOW );
result.addValue( ResultList.SUPPRESS );
Note: for option 1 you have to set context of source value to their heighest level, so that there shouldn't be a context change. Or you can use RemoveContext.