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Synchronizing containment and cross reference lists [message #1766271]

Mon, 19 June 2017 13:15

Eclipse User

Hi, I am fairly new to emf and I wonder how I can sync between a containment and cross reference lists

My class structure is the following

SubComponent
component // parent component, a container reference

Input > SubComponent
Output > SubComponent

Component > subComponent //super type
subComponents : [0..*] SubComponent // a containement reference
inputs : [0..*] Input
outputs : [0..*] Output

So, in my application, sometimes I need to handle all subcomponents in a way, and sometimes I need to apply specific operations only on input and outputs.

I know I can can walk through the subcomponents list and filter on inputs and outputs, or add them by hand in each list whenever I add an input or input to a Component, but is there a way to tell emf to sync between subcomponents and inputs and outpus lists, so that when I add or remove an Input (output) from the subcomponents list, it gets removed from the inputs (outputs) list as well ?

[Updated on: Mon, 19 June 2017 13:22] by Moderator

Re: Synchronizing containment and cross reference lists [message #1766275 is a reply to message #1766271]

Mon, 19 June 2017 15:48

Eclipse User

No, there's nothing to automatically do that.

Re: Synchronizing containment and cross reference lists [message #1766934 is a reply to message #1766275]

Wed, 28 June 2017 16:32

Eclipse User

You could implement an EContentAdapter to listen to model changes and add your update logic in the notification. So you do not have to take care of that at all the pieces of code where you modify the model.

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