topic Re: How to retrieve record schema in ProcessorConfiguration File? in Talend Studio

How to retrieve record schema in ProcessorConfiguration File?

IrwanAfandiGDP — Fri, 02 Jan 2026 14:45:42 GMT

Hello guys,

I want to make custom components where the component can doing data quality checking. The problem is how do I get the record schema in ProcessorConfiguration.java? Because I want to make a dropdown component settings where the value of dropdown is the name of each field from my input data. For example like tFilterRow component, if you push add button, you can press the dropdown menu where the dropdown value come from data input fields. If in processor.java we can get the field name from "defaultInput.getSchema().getEntries().get(index).getName()", how about PreprocessorConfiguration.java because there isn't

@Input

final

Record defaultInput

Re: How to retrieve record schema in ProcessorConfiguration File?

undx — Tue, 04 May 2021 10:04:59 GMT

Hi @IrwanAfandiGDP ,

Maybe this documentation will help you on your subject:

https://talend.github.io/component-runtime/main/1.33.0/studio-schema.html#_accessing_columns_metadata

Best regards.

Emmanuel

Re: How to retrieve record schema in ProcessorConfiguration File?

mchapman — Tue, 04 May 2021 12:31:07 GMT

Hi @Mohamad Irwan Afandi, also consider that there are DQ Routines in the Code metadata folder that can be access from tMap and other components for field level DQ checks, and additional DQ capabilities (such as a full DQ Data Mart) in the Enterprise version of Talend.

Re: How to retrieve record schema in ProcessorConfiguration File?

gerjo — Mon, 14 Nov 2022 13:55:27 GMT

Does this solution works for someone? I tried the same. However, I only get ProcessorConfiguration filled at runtime and not at configuration time.

What will will be the way to get it at configuration time?

Re: How to retrieve record schema in ProcessorConfiguration File?

konvertilo — Fri, 26 Jan 2024 13:28:32 GMT

hi,

having the same issue there. It is impossible to get the schema at design time to "configure" the component. the documentation is not working "out of the box".

If someone has a valid example of a classConfiguration.java having the schema displayed at design time, that would be very helpful.

Thank you.

Re: How to retrieve record schema in ProcessorConfiguration File?

wadde — Mon, 11 Mar 2024 12:44:29 GMT

We use config files almost everywhere, though these tend to be two-way files, saving settings on fly.

I know this will offend many people, but I use .INI files, as they are easy to edit. This has worked well as if a client has an issue we can download their config file and run the code locally with their exact settings.