Toolbox with directed Composition?

[koenemann]

Hi!

By default, a composition added between two classes looks like this (the diamond should be filled):

[ClassA] <>----- [ClassB]

It is a little bit weird, but direction is added as desired by setting changing the 'Direction' property of the composition from 'Source -> Destination' to 'Destination -> Source':

[ClassA] <>----> [ClassB]

But I would like to have it directed by default.
So I tried to created an MDG technology with a profile that defines a composition that is already directed (by adding an attribute: 'direction : Direction = Destination -> Source'), then I added a toolbox and diagram type with this new composition.

But when installing the MDG technology and creating a new composition, there it is still a composition with default direction 'Source -> Destination'.

So my question is: how can I define a toolbox with a composition that is directed by default?
Btw, using EA v10.

[qwerty]

EA is a *bit* wishy washy in that respect. There's also a global option Tools/Options/Links/Assoc. def (2nd) and /Draw Aggr. rev. (5th)
There are reasons for those options to be present. However, it doesn't make the behavior more clear or stringent.

q.

[KP]

I would create a stereotype that extends Association, and set the direction attribute to "Source -> Destination" and the compositionKind attribute to "Composite at Source".

[koenemann]

Great, it works! Thank you very much KP!
Are these customizations (like "Composite at Source") documented somewhere?

In the meantime I have a very similar problem:
I would like to create enumeration literals from the toolbox, but a stereotype for properties always creates normal attributes without the 'Is Literal' flag. Is it possible to create enum literals from the toolbox?

I would create a stereotype that extends Association, and set the direction attribute to "Source -> Destination" and the compositionKind attribute to "Composite at Source".

@qwerty: the option for reverse aggregation draws compositions/aggregations the other way, but it does not change add arrows for indicating the direction/navigability. So this is not what I was looking for.