I have recently started using SQL Developer Data modeler in my new project apart from the other commercial data modeling tools. I am having problems with the automation parts/ scripting parts. Generally Oracle products has very good documentation but this scripting part is not up to the mark.
I want to put all my design rule validations into a Library, I have only the Logical data model, relational is not generated till now, So, all the validations will happen in logical model only.
Now, I have created a Library. ti looks like:

The custom rule is defined as:

When I am applying this, to my surprise it is saying everything is fine! Shouldn't it return an false error with "xxx" for every entity in the logical data model?
What I am missing here?
EDIT: I already read about SQLDeveloperDataModelerScripting.docx, index,.html and the only book available on SQL Developer Datamodeler by Heli etc.