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Cannot find UML Class Diagram simple directed assocation [message #476574]

Thu, 02 July 2009 19:02

Eclipse User

Hi,

I'm a fairly new user of the Eclipse UML2Tools project, and I have a very
basic question which I have nonetheless been having trouble with: how can
I create a simple directed association between two classes? By "simple,
directed association", I mean, given two classes, that one draws a
connection from source to target; the source anchor is undecorated, while
the target anchor has an arrow facing the target. The closes thing I have
been able to find in this regard is the navigable association
relationship, but this adds something to the source anchor. I feel like I
must be missing something obvious, and I would greatly appreciate it if
anyone could help guide me on this.

Thanks,

Jake

Re: Cannot find UML Class Diagram simple directed assocation [message #476575 is a reply to message #476574]

Fri, 03 July 2009 15:05

Eclipse User

Hello Jake,

You created a simple directed association in a correct way. The cross at
the source end indicates that the end is not navigable.

Now three options are available in the preferences page in order to manage
arrows/crosses:
-Show all arrows and x’s.
-Suppress all arrows and x’s.
-Show one-way navigibility only

Howver, I've created a bug #282401 'Allow to show/hide arrows, crosses and
dots for a particular association', you can track it for the update.

Best wishes,
Tanya.

> Hi,
>
> I'm a fairly new user of the Eclipse UML2Tools project, and I have a
> very basic question which I have nonetheless been having trouble with:
> how can I create a simple directed association between two classes? By
> "simple, directed association", I mean, given two classes, that one
> draws a connection from source to target; the source anchor is
> undecorated, while the target anchor has an arrow facing the target.
> The closes thing I have been able to find in this regard is the
> navigable association relationship, but this adds something to the
> source anchor. I feel like I must be missing something obvious, and I
> would greatly appreciate it if anyone could help guide me on this.
>
> Thanks,
>
> Jake
>

Re: Cannot find UML Class Diagram simple directed assocation [message #476576 is a reply to message #476575]

Sat, 04 July 2009 12:10

Eclipse User

Thank you Tatiana, I believe that was exactly what I needed to know.

Jake

Re: Cannot find UML Class Diagram simple directed assocation [message #511243 is a reply to message #476576]

Sun, 31 January 2010 13:07

Eclipse User

Hi,

Sorry to revive an old post, but I've seen at least one other post referencing this one, and I wanted to just make it clear that I never did discover how to draw simple directed associations with UML2Tools. No combination of the options you mentioned has allowed me to do this, so I'm still quite confused as to whether this is possible. Does UML2Tools support drawing simple directed assocations?

Please let me know what you think. Thanks,

Jake

Re: Cannot find UML Class Diagram simple directed assocation [message #529218 is a reply to message #476574]

Fri, 23 April 2010 09:50

Eclipse User

I have struggled with this as well and found the solution.

1) in Preferences, set "Show one-way navigation only" or "Show all arrows and X's"
2) choose 2 classes and create association between them
3) select the association and look into the Properties view
4) in the Core tab, you will see "Member end" = "<Property> src:Class1, <Property> dst : Class2"
5) select the "Navigable owned end" and set its value to "<Property> dst : Class2"
6) save, close the diagram and reopen

Now you will see "x" on the Class1 side and arrow on the Class2 side.

Re: Cannot find UML Class Diagram simple directed assocation [message #624513 is a reply to message #476574]

Fri, 03 July 2009 15:05

Eclipse User