How to use DENORMALIZER to achieve the following

CloverDX Platform
1

How to use DENORMALIZER to achieve the following
source.txt
group2,A
group2,B
group2,C
group1,A
group1,B

target.txt
group2,A,B,C
group1,A,B,

**In the 2.6 version I did not test successfully.**Please give a sample to achieve

2 
//#TL
// This transformation defines the way in which multiple input records 
// (with the same key) are denormalized into one output record. 
string result;
// This function is called for each input record in a group of records with
// the same key.
function append() {
	result = concat(result, $field2,',');
}

// This function is called once after the append() function was called for all records
// in a record group defined by the key. It creates an output record for the record group.
function transform() {
	$field1 := $field1;
	$field2 := substring(result,0,length(result) - 1);
}

// Called during component initialization.
// function init() {}

// Called after the output record was created in the transform() function.
function clean() {
	result='';
}
3

Syntax
string concat(type arg1, type arg2, …);

Thank you for your reply, concat can return string type,
if I want to return to other types it.
I think the data should not be passed concat to store,
should be resolved through java.util.Map and java.util.Vector to store, but did not materialize.

source fmt

<?xml version="1.0" encoding="utf-8"?>

target fmt

<?xml version="1.0" encoding="utf-8"?>

How to achieve output Record is more than the case of Field

4

In time being hierarchical fields are not supported by Clover.

5

This feature can be referred to the development plan? Transpose the ranks of the basic functions is to output ports output multi-column fields. :smiley: