Select column names from input schema to java variable.

[MPogorelov1634291005]

Hello everyone!

I use IntelliJ + Talend Component Kit.

How can I make some options in component where user can add column names from component`s schema.

I know that I must write some strings in configuration.java file. Help me please, if anybody can.

[undx]

Hi @Makar Pogorelov​ ,

I think that you'll find what you need in the document https://talend.github.io/component-runtime/main/1.42.0/studio-schema.html#_accessing_columns_metadata

Best regards

[MPogorelov1634291005]

Yes, it really helped me. Thank you!

Maybe can you ask on another one question?

I want use Table widget and I want fill him columns` labels from recieved input schema. I tried some steps, but no one works good. It should be like:

@Option

@Documentation("Table.")

List<Column> columnList=incomingSchema;

[undx]

Did you used a @structure annotation?

[MPogorelov1634291005]

Yes, I have:

@Option

@Documentation("Incoming metadata.")

@Structure(type = Structure.Type.IN)

private List<Column> incomingSchema;

@Option

@Documentation("Table.")

List<Column> columnList=new ArrayList<>();

public static class Column implements Serializable {

@Option

@Documentation("Column name")

String label;

}

Now I want put column names from inputSchema to columnList. As result I want something like this:

[undx]

The issue is that columns designed by schema editor will only be available at runtime, not at design!