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[SOLVED] Create child nodes automatically when parent is created [message #787320]

Tue, 31 January 2012 07:55

Eclipse User

Hello,

I want to create automatically a child node 'Trigger' when I define a node 'task', so I customized my TaskCreateCommand as follows:

/**
 * @generated NOT
 */
protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
		IAdaptable info) throws ExecutionException {
	GioLike.Task newElement = GioLike.GioLikeFactory.eINSTANCE.createTask();

	GioLike.FIMode childHolder = (GioLike.FIMode) getElementToEdit();
	childHolder.getTasks().add(newElement);

	//custom code:	
	GioLike.Trigger newTrigger = GioLike.GioLikeFactory.eINSTANCE.createTrigger();
	newElement.setTrigger(newTrigger);
	
	doConfigure(newElement, monitor, info);

	((CreateElementRequest) getRequest()).setNewElement(newElement);
	return CommandResult.newOKCommandResult(newElement);
}

In principle it seems to work , because it creates the trigger inside the Task. However, when I save the diagram the trigger is not saved, so when I close and open the diagram it has dissapeared.

Does anybody know what am I doing wrong?

[Updated on: Wed, 01 February 2012 08:07] by Moderator

Re: Create child nodes automatically when parent is created [message #787368 is a reply to message #787320]

Tue, 31 January 2012 08:56

Eclipse User

Iban,

Comments below.

On 31/01/2012 1:55 PM, Iban Mising name wrote:
> Hello,
>
> I want to create automatically a child node 'Trigger' when I define a
> node 'task', so I customized my TaskCreateCommand as follows:
>
> /**
> * @generated NOT
> */
> protected CommandResult doExecuteWithResult(IProgressMonitor monitor,
> IAdaptable info) throws ExecutionException {
> GioLike.Task newElement =
> GioLike.GioLikeFactory.eINSTANCE.createTask();
Are you using GioLike as an EPackage name? Using upper case letters in
package names is a bad idea.
>
> GioLike.FIMode childHolder = (GioLike.FIMode) getElementToEdit();
> childHolder.getTasks().add(newElement);
>
> //custom code:
> GioLike.Trigger newTrigger =
> GioLike.GioLikeFactory.eINSTANCE.createTrigger();
> newElement.setTrigger(newTrigger);
Is the Task.trigger a containment reference? This Trigger instance
will need to be contained somewhere if not here.
>
> doConfigure(newElement, monitor, info);
>
> ((CreateElementRequest) getRequest()).setNewElement(newElement);
> return CommandResult.newOKCommandResult(newElement);
> }
>
> In principle it seems to work , because it creates the trigger inside
> the Task. However, when I save the diagram the trigger is not saved,
> so when I close and open the diagram it has dissapeared.
>
> Does anybody know what am I doing wrong?

Re: Create child nodes automatically when parent is created [message #787442 is a reply to message #787368]

Tue, 31 January 2012 10:33

Eclipse User

Ok, I changed 'GioLike' into 'giolike', I didn´t know that could be a source of problems.
And yes, the Trigger is a containment reference of Task. How can I define it then?
Thanks in advance!

Re: Create child nodes automatically when parent is created [message #787511 is a reply to message #787442]

Tue, 31 January 2012 12:04

Eclipse User

Iban,

I wouldn't expect a contained object not to be saved if the thing that
contains it is properly saved. Can you tell if the Task appears in the
XML and there isn't a nested element corresponding to the Trigger being
saved?

On 31/01/2012 4:33 PM, Iban Mising name wrote:
> Ok, I changed 'GioLike' into 'giolike', I didn´t know that could be a
> source of problems.
> And yes, the Trigger is a containment reference of Task. How can I
> define it then?
> Thanks in advance!

Re: Create child nodes automatically when parent is created [message #788019 is a reply to message #787320]

Wed, 01 February 2012 03:52

Eclipse User

Hi,

did you try to realize this scenario via the gmfmap model? There you can use FeatureSeqInitializer together with ReferenceNewElementSpec.

Ralph

Re: Create child nodes automatically when parent is created [message #788075 is a reply to message #788019]

Wed, 01 February 2012 05:19

Eclipse User

Hi both,
I still haven´t fixed the problem.
When I save the diagram file, triggers do appear in the diagram file, but they do not appear in the XML model file!! And if I close the diagram file and open it again, they have disapeared also in the diagram file. It is very strange, isn´t it?

I also tried the FeatureSeqInitializer as Ralph suggested, but it doesn´t work either. Does what I did:
- Node Mapping <Task/Task>
---- Feature Seq Initializer <Task(trigger)>
------- Reference New Element Spec <trigger:=new Trigger[1]>
---------- Feature Seq Initializer<new Trigger()>

The result in this second case is exactly the same as in the first one (modifying code by hand).

Can anybody help me?

[Updated on: Wed, 01 February 2012 05:19] by Moderator

Re: Create child nodes automatically when parent is created [message #788185 is a reply to message #788075]

Wed, 01 February 2012 08:07

Eclipse User

I got it!!
The problem was not the code. The thing is that the relationship 'trigger' was set to 'Transient = true' in my ecore file. So I changed it to false and it works.
So I will set the topic as solved.
Thanks!!

[Updated on: Wed, 01 February 2012 08:07] by Moderator

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