| Activity and CallOperationAction question [message #1614828] |
Fri, 13 February 2015 14:26  |
 Joost Kraaijeveld
Messages: 251
Registered: July 2009 |
Senior Member |
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Hi,
If I add an Activity Diagram to a class an Activity is created. If I
populate the Activity (through the Diagram) with a CallOperationAction
and I validate the model, an error is reported: the target of the
CallOperationAction must be set.
The possible values I can set are "ActionInputPin", "InputPin" and
"ValuePin". But I believe that a pin requires a real object. I have
managed tot "click this together" but requires such a pin with named
variable.
What I (conceptually) want, is to specify that the target of the
CallOperationAction is the "this" instance/object of the class. Is
that possible? If so, could one point to how? (And more probable) If
not, why not?
TIA
Joost
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Cheers,
Joost
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| Re: Activity and CallOperationAction question [message #1646071 is a reply to message #1644583] |
Mon, 02 March 2015 21:04  |
Joost Kraaijeveld
Messages: 251
Registered: July 2009 |
Senior Member |
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Hi Abhijit,
Thanks for the answer.
On 02-03-15 05:44, Abhijit Deshpande wrote:
> Hi Joost,
>
> You can use "ReadSelfAction" to get a handle to "this" object.
>
> 1. Create "ReadSelfAction" 2. Create "OutputPin" for
> "ReadSelfAction" 3. Connect this "OutputPin" to "InputPin" of your
> "CallOperationAction" using "ObjectFlow"
OK, but that would add an explicit "argument" to the Action. Is an
action which is attached to an Operation not called in the context of
the instance of object of the type? Something like in C++, where the
this-pointer is implicitly passed to the callee?
TIA
Joost
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Cheers,
Joost
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