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Attribute problems [message #230711]

Mon, 18 May 2009 18:49

Arij

Messages: 40
Registered: July 2009

Member

Hello everybody
I have two problems:

1) In my model ecore, I have 2 classes which have both attribute
LevelNumber (integer type) and which are interconnected with an
aggregation.
I want that the second class attribute LevelNumber is equal automatically
to the first class attribute LevelNumber.

2) We can increment automatically an attribute (integer type), that is
when we add an element, the value of its attribute = value of the
attribute of the last one élément+1

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Re: Attribute problems [message #230750 is a reply to message #230711]

Tue, 19 May 2009 11:00

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Arij,

> 1) In my model ecore, I have 2 classes which have both attribute
> LevelNumber (integer type) and which are interconnected with an
> aggregation.
> I want that the second class attribute LevelNumber is equal
> automatically
> to the first class attribute LevelNumber.
You can try using derived attributes so the getter of attribute for 2-nd
class will be just return a value of this attribute from 1-st class.

> 2) We can increment automatically an attribute (integer type), that is
> when we add an element, the value of its attribute = value of the
> attribute of the last one élément+1
You can modify EMF-generated fectory class to assign proper values for the
newly created model elements.

-----------------
Alex Shatalin

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