Thanks for your reply.
After it fails, I need to log the file into a table (record rejected files). If it is valid, it will be continued to normal parsing process.
I am thinking of using tAggregate because there are multiple columns to be verified. Some columns could not exceeds some number, say 5 rows.
Yes, the tFilter is an option but this needs multiple filters. I wonder if I could use one tJavaRow to validate all of columns. If I could get the list of all counts, I could 1) check if the particular value exists and 2) check its counts if it exists by loop them all. This could check multiple columns in one loop.
The question is : is there a way to get a the list of tJava ? If not, is there way to validate multiple column by one process instead of multiple processes(filters) ?
James