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EMF-Databinding and associated attributes [message #1123620]

Wed, 02 October 2013 15:18

Yigal Spinner
Messages: 101
Registered: July 2009

Senior Member

I'm trying to create EMF binding and have the ability to impact another related attribute in the same class that logically relates to the current attribute.
The idea is to have the "Undo" and "Redo" modify both attributes (i.e. have a way to create a compound command).
For example, if I have two check boxes, one is called "Required" and the other is called "Nullable". Then if the item is required it can not be nullable. I would like to have a listener on the modification of the "Required" field and add a command to reset and disable the "Nullable" field.

Does EMF binding support such functionality?

Thanks
Yigal

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Re: EMF-Databinding and associated attributes [message #1124537 is a reply to message #1123620]

Thu, 03 October 2013 12:38

Ed Merks
Messages: 25218
Registered: July 2009

Senior Member

Yigal,

Data binding used things like SetCommand.create which delegate to the
generated item providers for you model, so you can specialize behavior
by specializing the command created by createSetCommand in the item
provider of the class containing this feature.

On 02/10/2013 9:19 PM, Yigal Spinner wrote:
> I'm trying to create EMF binding and have the ability to impact
> another related attribute in the same class that logically relates to
> the current attribute.
> The idea is to have the "Undo" and "Redo" modify both attributes (i.e.
> have a way to create a compound command).
> For example, if I have two check boxes, one is called "Required" and
> the other is called "Nullable". Then if the item is required it can
> not be nullable. I would like to have a listener on the modification
> of the "Required" field and add a command to reset and disable the
> "Nullable" field.
>
> Does EMF binding support such functionality?
>
> Thanks Yigal

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