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Notification from XtoXMap reference [message #231291]

Tue, 26 May 2009 08:50

Eclipse User

Originally posted by: markus.franz.kapelan.com

Hi,

some of my model elements contain XtoXMap references (according to
http://wiki.eclipse.org/EMF/FAQ#How_do_I_create_a_Map_in_EMF .3F). Now i
need to have the figure for those elements to be sensitive to changes in
those maps. The standard mechanism to make figures sensitive to model
changes (according to
http://wiki.eclipse.org/GMF_Tips#Making_figures_sensitive_to _attributes_of_semantic_elements)
won't work because the model element receives no notification if a map
entry is changed ("put"). How may i receive a notification for changes
in a map?

Regards,
Markus

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Re: Notification from XtoXMap reference [message #231354 is a reply to message #231291]

Tue, 26 May 2009 11:25

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Markus,

You have to listen parent element of your model element - corresponding EMF
notifications will probably go there.

-----------------
Alex Shatalin

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Re: Notification from XtoXMap reference [message #231397 is a reply to message #231354]

Tue, 26 May 2009 12:09

Eclipse User

Originally posted by: markus.franz.kapelan.com

Hi,

i tried the parent of the model element and it does not receive the
notifications (and i would be very surprised if it did). But what i
should probably mention:
When the value is first "put" into the map, a notification arrives where
i expect it to arrive. But if the value is updated (also by "put"), no
notification is received.

Markus

> Hello Markus,
>
> You have to listen parent element of your model element - corresponding
> EMF notifications will probably go there.
>
> -----------------
> Alex Shatalin
>
>

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Re: Notification from XtoXMap reference [message #231418 is a reply to message #231397]

Tue, 26 May 2009 12:19

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Markus,

I can see EStringToStringMapEntryImpl as an example - this class contains
setTypedValue() method sending a notification, so I suppose similar class
should be generated for your map entry element.

-----------------
Alex Shatalin

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