How to access user modified Schema in @Producer method of input Component

Safus — Sat, 16 Nov 2024 00:27:17 GMT

Hi all,

I know that accessing schema when it's a processor component is quite simple because schema is in the Record Object parameter.

But I am developing an input component and I have implemented a @DiscoverSchema method which works fine, and it retrieves the schema.

In my @Producer method of my source class. I have to retrieve the schema set by the user (it can me modified after he clicks "Guess Schema" )

I am thinking about this scenario :

1- User clicks 'Guess Schema" and the @DiscoverSchema method is triggered so "Default" schema is fixed.

2- User chooses to modify this schema before executing component

My Question is where is the Schema structure stored ? How to access it ? Is it possible to access it in my service or source classes ? Is it possible to detect schema that was modified by user before executing component ?

I know that the @DiscoverSchema has a return type of Schema and calling it my source class would only retrieve the default schema and not the modified one.

Best regards,

Safus

Re: How to access user modified Schema in @Producer method of input Component

undx — Fri, 12 Mar 2021 11:39:09 GMT

Hi @safouane BEN MANSOUR

Please, have a look at https://talend.github.io/component-runtime/main/1.31.0/studio-schema.html#_accessing_columns_metadata

for accessing to designed schema.

Best regards.

Emmanuel

Re: How to access user modified Schema in @Producer method of input Component

Safus — Fri, 12 Mar 2021 17:16:49 GMT

Hi @Emmanuel GALLOIS,

It works like a charm 😄

Best Regars,

Safus

topic Re: How to access user modified Schema in @Producer method of input Component in Talend Studio

How to access user modified Schema in @Producer method of input Component

Re: How to access user modified Schema in @Producer method of input Component

Re: How to access user modified Schema in @Producer method of input Component