topic Re: [resolved] how to iterate through ArrayList? in Talend Studio

[resolved] how to iterate through ArrayList?

Anonymous — Sat, 16 Nov 2024 13:31:50 GMT

Hi,
I have an ArrayList I set in a tJavaFlex component
globalMap.put("list",list);
I can read the "global" value ie:
(java.util.List)globalMap.get("list")
I wander how I can iterate through x, y, then z, based on (java.util.List)globalMap.get("list")
iteration?
thanks in advance for any help.
JNB

Re: [resolved] how to iterate through ArrayList?

Anonymous — Mon, 01 Mar 2010 14:16:46 GMT

I managed to iterate the list values that way
In a tJava component
Object ia[] = ((java.util.List<String>)globalMap.get("list")).toArray();
for(int k=0; k<ia.length; k++) {
context.val = context.val + ia<K> + ";";
}
Then I can process
tFixedFlowInput->tNormalize ... and iterate through each value of my initial arrayList.
I'm not sure it's the best way to do it but that works.
JNB

Re: [resolved] how to iterate through ArrayList?

Anonymous — Tue, 02 Mar 2010 03:35:48 GMT

Hello
You can aslo use tLoop to iterate each value of list. see my screenshots.
Best regards
shong

Re: [resolved] how to iterate through ArrayList?

Anonymous — Mon, 18 Jul 2011 15:31:28 GMT

Hi. This is similar to the scenario I am trying to develop, except instead of a tJava component, I want to feed each element of the List into a tMap. How do I arrange this? Can't seem to get the flows right to get myself access into the tMap.
i.e. something like
tLoop => . . . => tMap (for each element)
Thanks!

Re: [resolved] how to iterate through ArrayList?

Anonymous — Tue, 19 Jul 2011 07:36:09 GMT

Hi. This is similar to the scenario I am trying to develop, except instead of a tJava component, I want to feed each element of the List into a tMap. How do I arrange this? Can't seem to get the flows right to get myself access into the tMap.
i.e. something like
tLoop => . . . => tMap (for each element)
Thanks!

Hi
I am sure the code in tJava should also work in tMap, if you can't get the job work, please upload a screenshot of job.

Best regards
Shong

Re: [resolved] how to iterate through ArrayList?

Anonymous — Wed, 03 Aug 2011 12:51:48 GMT

Apologies for the late response; thanks Shong for your reply. It all worked out as you suggested.

Re: [resolved] how to iterate through ArrayList?

Anonymous — Wed, 20 Apr 2016 04:49:14 GMT

Hi
I have scenario to iterate through Arraylist .I have list of customercode where i should check the custcode with the table if it exist it should go to the if condition there i m creating a temporary table to do bulk updation,if it doesn't exist it has to go to else part.
how can i solve this issue? i am facing problem while iterating a list.

Re: [resolved] how to iterate through ArrayList?

Anonymous — Wed, 20 Apr 2016 09:50:34 GMT

This tutorial might help. It was written to demonstrate how to replicate the "Connect By" Oracle functionality in Talend. But the first component receives data as an ArrayList and iterates through the list using a tJavaFlex. Take a look ( https://www.rilhia.com/tutorials/talend-connect-example).

Re: [resolved] how to iterate through ArrayList?

Anonymous — Mon, 29 Jun 2020 10:00:45 GMT

Hi Shong,

Are you able to share me your screen shot.

Kind Regards

Rits

Re: [resolved] how to iterate through ArrayList?

Anonymous — Mon, 29 Jun 2020 10:00:45 GMT

Hi Shong,

Are you able to share me your screen shot.

Kind Regards

Rits