[henshin-user] How to easily increment (add 1 to) a parameter?

[Benjamin Heidelmeier <heidelme@xxxxxxxxxxxxxxxxxxxxxxx>]

Dear Henshin Users,
in the process of creating a set of Henshin Units and Rules I stumbled 
upon a task, which ideally should be easy to deal with: I want to 
increment an integer parameter. I attached an image of the units and 
rules I set up to do this. It feels very bloated if you consider the 
only thing which should be done is incrementing a parameter.

The attached image shows the unit incrementHour which takes the IN 
parameter "hour" and outputs the OUT parameter "oneMore" which is 
hour+1. The object Temp you can see in the rules exists for the sole 
purpose to make incrementing possible. It has one attribute "tempInt" 
of type EInt, which temporarily stores the parameter value that is 
going to be incremented.

Do you have any idea how to do this "better"? E.g. one of the following 
properties:
- less rules/units,
- without an instance object,
- or whatever you consider smarter

I would be happy to hear any suggestions from you.

Kind regards,
Benjamin

Attachment: universityCourses-incrementHour.png
Description: PNG image