Re: [henshin-dev] mapping

[Stefan Jurack <henshin.stj@xxxxxxxxx>]

Hi Amalia,

how do you start the transformation? If you plan to do some metamodel evolution, you shall use a Java code based approach since you need to add some meta-models to the EmfGraph as well. This can be seen in the Ecore2Genmodel example.

Am 13.09.2011 09:09, schrieb NA S:

Also, is there an easy way to update the ecore file in henshin after it has been changed? (for example, adding attribute). The only way I did was to restart the eclipse.

Do you mean it does not change within the Henshin Editor or what exactly is the problem?
A restart of eclipse is only necessary if you use an EMF eclipse plugin with generated EMF model code that changes together with the corresponding ecore model.

I recommend you to have a look at the Ecore2Genmodel example again and reduce it to your minimal needs.

Regards,
Stefan

Amalia

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From: anoniems@xxxxxxxx
To: henshin.stj@xxxxxxxxx
Subject: RE: [henshin-dev] mapping
Date: Mon, 12 Sep 2011 22:31:11 +0100

Hello Stefan,

I've been trying to produce the simplest example of this but I'm facing new difficulties. If you open "rule0" in test.henshin, there are Chart and Marker nodes. I should be able to create a new edge between these nodes, but I couldn't. I have no idea why?

Amalia

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Date: Mon, 12 Sep 2011 11:24:49 +0200
From: henshin.stj@xxxxxxxxx
To: henshin-dev@xxxxxxxxxxx
CC: anoniems@xxxxxxxx
Subject: Re: [henshin-dev] mapping

Amalia,

hardly to say. Could you send a minimal example Eclipse project which demonstrates your intend and the error.

Regards,
Stefan

Am 09.09.2011 13:10, schrieb NA S:

Hello again,

I've created a mapping ecore for marking purpose similar to the Ecore2GenModel example. Whenever I try to do the model transformation, I keep on getting error. The simplest way I did was to add a Marker class on the RHS which points to an object (for example State). When I deleted the Marker, it worked fine. But when I added it, I got an error: Exception in thread "main" java.lang.NullPointerException.

Is there something I'm missing here?

Thanks in advance.

Kind regards,
Amalia

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