Qualified associations

Question

Hi,

Did you plan to add support for qualified associations (for class diagrams) to PlantUML ? It's a UML notation i'm using quite often (mainly for teaching purposes) and it would be handy to have it in PlantUML.
Anyway, thanks for this nice software.
 
Regards,
Laurent

Answer 1

After four years, did you plan to add support for qualified associations ?

Your software is great, I use it to make my software engineering course.

With qualified associations it will be perfect ^^.

Regard,

Erik

Answer 2

You can use this sample:

@startuml
class Dummy {
aaaa
}
class Student {
Name
}
Dummy "*" - "*" Student
'chapter 3.2
Student "0..*" - "1..*" Course
(Student , Course) .. Enrollment
'Chapter 3.22
class Enrollment {
drop()
cancel()
}
@enduml

Hope this helps

Comments

Nope, This is not help. This sample generate an associative class called Enrollment, not a qualified association as asked.

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A common use for qualified associations  is to model maps.

This notation is much more readable than class association.

Supporting this would be very nice !

Answer 3

I know this is a very old request. Still, it would be nice to have this  I can imagine it's difficult to integrate in the grammar.

You could use some kind of workaround for now:

@startuml
Class01 "[key]" -- "1" Class02
@enduml

Comments

So is "[key]" the only possible notation in PlantUML for showing a Qualified Association? Is there an alternative notation? 

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I can think of a syntax --[key] that goes along with the other line endings, e.g. --* or -->> but I might be mixing the arrow endings on sequence diagram messages...