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Create child element on parent creation ... [message #147305]

Tue, 21 August 2007 11:38

Eclipse User

Originally posted by: snej_NO-SPAM_.esuark.de

Hi there,

i need some help with that. I want to create a child object (view and
model element) when the creation of my parent is completed.
In detail i want that a special attribute (in my case EjbAttribute) is
created when the user adds a class (in my case EjbClass).
EjbClass has a reference (named attribute) to infinit EjbAttribute's.

I tried to use the informations about ICommand and so on i found in the
news and wikis, but i'm stuck.
What's the intended way to do that what i want to do? I think i only
need a hint where i have to start ...

regards
jens

Re: Create child element on parent creation ... [message #147343 is a reply to message #147305]

Tue, 21 August 2007 13:15

Eclipse User

Jens,

You can achieve this in the ??ViewFactory class generated for your
EjbClass, in the decorateView() method.

Regards,
Jacques

Jens Krause a écrit :
> Hi there,
>
> i need some help with that. I want to create a child object (view and
> model element) when the creation of my parent is completed.
> In detail i want that a special attribute (in my case EjbAttribute) is
> created when the user adds a class (in my case EjbClass).
> EjbClass has a reference (named attribute) to infinit EjbAttribute's.
>
> I tried to use the informations about ICommand and so on i found in the
> news and wikis, but i'm stuck.
> What's the intended way to do that what i want to do? I think i only
> need a hint where i have to start ...
>
> regards
> jens

Re: Create child element on parent creation ... [message #147350 is a reply to message #147305]

Tue, 21 August 2007 13:47

Eclipse User

Hi Jens,

You may create the child model element by declaring a Feature Seq
Initializer in the mapping model for the node mapping that corresponds
to EjbClass. Inside this initializer, declare a Reference New Element
Spec. Note that you may further initialize the created new element with
other initializers.
If your diagram is synchronized, CanonicalEditPolicy will then create
the visual representation of your EjbAttribute for you automatically.

Best regards,
Boris

Jens Krause wrote:
> Hi there,
>
> i need some help with that. I want to create a child object (view and
> model element) when the creation of my parent is completed.
> In detail i want that a special attribute (in my case EjbAttribute) is
> created when the user adds a class (in my case EjbClass).
> EjbClass has a reference (named attribute) to infinit EjbAttribute's.
>
> I tried to use the informations about ICommand and so on i found in the
> news and wikis, but i'm stuck.
> What's the intended way to do that what i want to do? I think i only
> need a hint where i have to start ...
>
> regards
> jens

Re: Create child element on parent creation ... [message #148098 is a reply to message #147350]

Tue, 28 August 2007 10:04

Eclipse User

Originally posted by: snej_NO-SPAM_.esuark.de

Boris Blajer wrote:
> You may create the child model element by declaring a Feature Seq
> Initializer in the mapping model for the node mapping that corresponds
> to EjbClass. Inside this initializer, declare a Reference New Element
> Spec. Note that you may further initialize the created new element with
> other initializers.
> If your diagram is synchronized, CanonicalEditPolicy will then create
> the visual representation of your EjbAttribute for you automatically.

That was a good advice, thanks.
Now i need to create another element on parent creation, but this time i
have to position the inner elements to special positions. With the
feature initializer that isn't possible, so i have to create and
position the graphical elements programmatically.

Do you have hints for that too?

regards
jens

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