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Child references [message #479209]

Mon, 10 August 2009 09:45

Swapnil

Messages: 19
Registered: July 2009

Junior Member

I have a model

Role <-- Contract --> Role

Over here Roles are of type node

& Contract is a link between two Roles.

Now if the link is of complex type 'Contract' in XML schema & 'Contract'
has it's own sub-elements of complex type. e.g.

<Contract>
<Term />
<Clauses />
</Contract>

Can this be represented using GMF? I mean can a link has child references
as nodes? If not how this can be modeled?

Cheers,

Swapnil

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Re: Child references [message #479222 is a reply to message #479209]

Mon, 10 August 2009 10:12

Ed Merks

Messages: 33218
Registered: July 2009

Senior Member

Swapnil,

It's also best not to cross post the same question to multiple
newsgroups with separate posts.

Swapnil wrote:
> I have a model
>
> Role <-- Contract --> Role
>
> Over here Roles are of type node
>
> & Contract is a link between two Roles.
>
>
> Now if the link is of complex type 'Contract' in XML schema &
> 'Contract' has it's own sub-elements of complex type. e.g.
>
> <Contract>
> <Term />
> <Clauses />
> </Contract>
>
>
> Can this be represented using GMF? I mean can a link has child
> references as nodes? If not how this can be modeled?
>
>
>
> Cheers,
>
> Swapnil
>

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: Child references [message #479452 is a reply to message #479209]

Tue, 11 August 2009 07:32

Tobias Lingemann

Messages: 11
Registered: July 2009

Junior Member

Hi,

I hope, I understand your problem correctly.

I think you only need to have a class for the contract in your meta-model.
So your ecore would look like this:

Role
> outgoingContracts : Contract (0 to * containment)
>> EOpposite would be source
> incommingContracts : Contract (0 to * reference)
>> EOpposite would be target

Contract
> source : Role (1 to 1 reference)
> target : Role (1 to 1 reference)
> terms : Term (0 to * containment)
> clauses : Clause (0 to * containment)

The rest should be set automatically.

Best regards,
Tobias

Swapnil wrote:

> I have a model

> Role <-- Contract --> Role

> Over here Roles are of type node

> & Contract is a link between two Roles.

> Now if the link is of complex type 'Contract' in XML schema & 'Contract'
> has it's own sub-elements of complex type. e.g.

> <Contract>
> <Term />
> <Clauses />
> </Contract>

> Can this be represented using GMF? I mean can a link has child references
> as nodes? If not how this can be modeled?

> Cheers,

> Swapnil

Report message to a moderator

Re: Child references [message #479463 is a reply to message #479452]

Tue, 11 August 2009 08:22

Swapnil

Messages: 19
Registered: July 2009

Junior Member

Hi Tobias,

Thanks for the reply.

I tried that, but it gives errors when i generate the diagram editor code.

The method add(Contract) in the type List<Contract> is not applicable for
the arguments
(TermType) TermTypeCreateCommand.java /TEST.diagram/src/Smc11/diagram/edit/commands line
61 Java Problem

The method getTerm() is undefined for the type
SMCType Smc11DiagramUpdater.java /TEST.diagram/src/Smc11/diagram/part line
51 Java Problem

I think as i don't have Contract as a Top reference node its not allowing
Term's containment feature set as a Contract.

In my case Contract is of type link.

Please provide me some help on this.

Regards,

Swapnil

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Re: Child references [message #479467 is a reply to message #479463]

Tue, 11 August 2009 08:59

Tobias Lingemann

Messages: 11
Registered: July 2009

Junior Member

Hi,

did you regenerate the *.genmodel and the model/edit-code?

I'm not so sure how you can dynamically add and delete elements to the
connection. I only used an enum-type initialized with the "Feature Seq
Initializer".
The enum in my case is no Top-Level-Node and changeable using the
properties tab (has to be set in the *.genmodel attributes to
'changeable').
If you have a more complex object that is attribut of you connection, you
might have to use diagram partitioning
(http://www.jevon.org/wiki/GMF_Diagram_Partitioning) or adopt the
properties tab.

Maybe you also can represent your attributes with a "Feature Label
Mapping" in the "Link Mapping".
Never the less, when I set the source- and target-features of my
Connections to changeable I get a list with all nodes, where I can change
the references.

I hope this helps.

Best regards,
Tobias

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Re: Child references [message #480545 is a reply to message #479209]

Mon, 17 August 2009 15:10

Alexander Shatalin

Messages: 2928
Registered: July 2009

Senior Member

Hello Swapnil,

Technically domain model element associated with link can contain child elements,
so if you don'd need to show there child elements somehow on a diagram it
can be done.

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

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