constraint to association

Question

 Hello I would like to know if it is possible to express constrins between association

,-----.       ,---.
|Dummy|<>---> |Foo|
|-----|   |   |   |
|     |   |   |   |
|     |  XOR  |   |
|     |   |   |   |
|     |   |   |---|
|-----|<*>--> |---|
`-----'       `---'

Dummy could have one Composition with Foo or or one Agregation with Foo but not both at the same time

 

 

Answer 1

Hello,

You cannot do this right now.
This is quite difficult to implement. We add this to the backlog list, but do not expect a solution on short term.

As workaround, you can have:

class Dummy
class Foo
Dummy *--> Foo : -XOR-
Dummy o--> Foo

or

class Dummy
class Foo
Dummy *--> Foo
note right on link
XOR
end note
Dummy o--> Foo


Hope this helps!

Comments

Hello,
Thank for the prompt answer.
I think the first one could be enough by now

And also just to let you know that I really like plantUML.

Answer 2

Is there any news on this topic? I would need that feature as well.