[news.eclipse.modeling.gmf] How to enable diagram validation?

[Matthias Schmeling <schm@xxxxxxxxxxxxxxxxxxxxxx>]

Hi,
I made a check file for my diagram editor and enabled decorations and
validation in the gmfgen model, but the validation does not work. I bet
I have to specify the name of the check file somewhere, but do not know
where. Can someone help me?

Thanks in advance,
Matthias