Generate specific key for specific code in Talend

Question

i want to generate specific numbers for specific codes in talend. Some of the codes are repeating, but i dont want to generate a different numerical sequence for that code. In tMap i used Numeric.sequence("out1.CODE",1,1) but it didnt help. Is there a way to replace the key based on the previous matching code. pls help

Table 1

code
ABC
ACC
AEB
ACC
AED
BEE
AEB

Required Result

Table 1

code	key
ABC	1
ACC	2
AEB	3
ACC	2
AED	4
BEE	5
AEB	3

Answer 1

Your job design would look like this

1- tMap_2 is configured as such

2- thashinput_1 would call thashoutput_1 and tick in the tUniqRow_1 : **Code**

3- tmap_4 configuration is configured as such :

4- tmap_5 configuration is configured as such :

Here is my output :

Starting job string at 16:22 10/05/2022.
[statistics] connecting to socket on port 3404
[statistics] connected
 .----+---.
 |tLogRow_3|
 |=---+--=|
 |code|key|
 |=---+--=|
 |ABC |1  |
 |ACC |2  |
 |AEB |3  |
 |AED |5  |
 |BEE |6  |
 |ACC |2  |
 |AEB |3  |
 '----+---'

 [statistics] disconnected

 Job string ended at 16:22 10/05/2022. [exit code  = 0]