topic Re: Making tMap Mapping Dynamic in Talend Studio

Making tMap Mapping Dynamic

Anonymous — Sat, 16 Nov 2024 11:37:40 GMT

Hey,
I am using Talend for a month now. I used the tMap component to map columns. I was wondering how to make this feature dynamic. I have to do it all manually everytime. Is it possible to have a file or table which has relationship (between the input column name and Output Column name) and then when we run the job, these columns are mapped after reading the file.
Please provide any suggestion (even if we can achieve something similar to this.)

Re: Making tMap Mapping Dynamic

Anonymous — Wed, 28 May 2014 12:52:24 GMT

In tMap, dynamic schema mapping is not possible. But, if you have fixed input and fixed output schema and only routing is to be mapped or changed, then some work around could be done for this.
Can you put a simple use case with real scenario?
Thanks
Vaibhav

Re: Making tMap Mapping Dynamic

Anonymous — Wed, 28 May 2014 13:02:23 GMT

what if i have a changing input schema but fixed output schema? i want to map changing input schema to a fixed output schema.
Is it possible?
i will update with the use case soon.

Re: Making tMap Mapping Dynamic

Anonymous — Thu, 29 May 2014 13:19:56 GMT

Have you seen this: http://bekwam.blogspot.ro/2011/06/dynamic-schemas-in-talend-open-studio.html ?
Not sure if applies to your use case but it worth a look. I found it very interesting ...
Success.
Zoltan

Re: Making tMap Mapping Dynamic

Anonymous — Thu, 29 May 2014 19:23:48 GMT

Have a look at using reflection. My good friend and reflection wizard R.Baldwin has an example that can be found here:
http://www.talendforge.org/exchange/tos/extension_view.php?eid=177

Re: Making tMap Mapping Dynamic

Anonymous — Thu, 03 Mar 2016 07:48:46 GMT

The below given link for R.Baldwin reflection is not working

-Archana Laddagiri

Re: Making tMap Mapping Dynamic

Anonymous — Mon, 16 May 2016 16:25:05 GMT

Hi,
We have a similar requirement where there is a dynamic input schema and fixed output schema. Is there any solution to do this in Talent?