CODEWITHSUNDEEP
progress-4glopenedge
Zesar
Zesar

Reputation: 566

Reflection in OpenEdge ABL / Progress 4GL

I am not able to find anything on reflection in OpenEdge ABL and how to do it. Is it even possible?

Upvotes: 1

Views: 1669

Answers (4)

lnrdnl
lnrdnl

Reputation: 376

I was looking for Reflection in OpenEdge ABL in 2021 and I found that there are more possibilities now (I'm using OE 11.6). I wasn't able to find extensive documentation but here is a start: https://docs.progress.com/bundle/openedge-oo-abl-develop-applications/page/Reflection.html

When using Progress Developer Studio you will able to see the possibilities when using auto-complete (Ctrl + Space). enter image description here

Upvotes: 0

JKO
JKO

Reputation: 158

And don't forget the GET-SIGNATURE() method and the INTERNAL-ENTRIES attribute.

Upvotes: 1

Fabian Frank
Fabian Frank

Reputation: 495

It is possible. There are not as many possibilities in OpenEdge as in languagaes like Java or C#, but since version 11 it has basic functionality.

To use reflection look at Progress.Lang.Object which has a method GetClass() that returns an instance of Progress.Lang.Class.

These are the members of Progress.Lang.Class from the OpenEdge Help (Version 11.1, should be the same for all 11.x versions):

enter image description here

In earlier versions of OpenEdge the reflection capabilities were even worse. But it was possible to invoke methods and create instances dynamically.

You should also have a look at the DYNAMIC-NEW statement and the DYNAMIC-INVOKE function.

Upvotes: 2

Tim Kuehn
Tim Kuehn

Reputation: 3251

It hasn't been implemented yet.

Upvotes: 1

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