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Update the properties of a link when he is created [message #486509]

Thu, 17 September 2009 21:35

marco

Messages: 82
Registered: September 2009

Member

hi

I also have a problem with the class the following link:

@gmf.link(source="from",target="to")
abstract class Link extends PropertyHolderElement, TypedElement {
attr LinkNavigability navigability;
ref ConnectableElement[1] from;
ref ConnectableElement[1] to;
ref Component fromContext;
ref Component toContext;
}

I wish that I automatically are assigned the values of the 4 elements
from, to, fromContext, toContext.

for example if I create a component A with a connectable element B and
another element component C with a connectable element D.

If I create a link between A and C I want to have in the properties links
the following values:
from = b
to = c
fromContext = A
toContext = B

I adds a another source and target of the link?
Is there a way to solve this problem?

thank you very much

marco

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Re: Update the properties of a link when he is created [message #486590 is a reply to message #486509]

Fri, 18 September 2009 10:40

Alex Shatalin

Messages: 141
Registered: July 2009

Senior Member

Hello marco,

Try using feature sequence initializers for corresponding link mapping in
..gmfmap model. This should help you to initialize from/to references (it's
possible to properly configure link mapping to sed fromContext/toContext).
Then you can try solving a problems with link rerouting.

In case you canot implement corresponding functionality using ocl in feature
sequence initializer then you can modify generated code.

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

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Re: Update the properties of a link when he is created [message #486664 is a reply to message #486590]

Fri, 18 September 2009 14:36

marco

Messages: 82
Registered: September 2009

Member

I have already set up the link to / from

I wish I could add in the property value is also in the fields fromContext
and toContext just creates the link

Where can I see an example of the use of OCL?

thanks

marco

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Re: Update the properties of a link when he is created [message #486897 is a reply to message #486664]

Sun, 20 September 2009 20:13

Alex Shatalin

Messages: 141
Registered: July 2009

Senior Member

Hello marco,

you need to create feature sequence initializer initializing fromContext
reference in a way like: self.from.context

where "context" is a reference from "from" element to "fromContext" one...

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

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Re: Update the properties of a link when he is created [message #488347 is a reply to message #486897]

Mon, 28 September 2009 11:09

marco

Messages: 82
Registered: September 2009

Member

alex you please give me an example of what I create?

are not very experienced and I have not understood what I wanted to tell me.

I create a new file? if so, where?

Where can I study these things?

if you send my metamodel can indicate the changes that I should do?

thanks marco

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Re: Update the properties of a link when he is created [message #488368 is a reply to message #488347]

Mon, 28 September 2009 13:00

No real name

Messages: 31
Registered: September 2009

Member

Hi,

Quote:

Please give me an example of what I create?

In general you open your "???.gmfmap" file. Select the node (mapping) you want to initialize. Right click and insert an feature sequence initializer.

Examples can be found at http://wiki.eclipse.org/GMF_Tutorial_Part_2#Feature_Initiali zers

For more informations about OCL and some example code see http://wiki.eclipse.org/MDT-OCL#Examples.

Regards,

sas

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Re: Update the properties of a link when he is created [message #489171 is a reply to message #488368]

Thu, 01 October 2009 17:08

marco

Messages: 82
Registered: September 2009

Member

hi

i have create the feature sequence initializer....

feature sequence initializer<SAbinding(fromContext,toContext)>
reference new element spec <fromContenxt:= new Compoennt[1]>
feature sequence initializer<new SAcomponent(name)>
reference new element spec <name:= new EString[0]>

reference new element spec <toContenxt:= new Compoennt[1]>
feature sequence initializer<new SAcomponent(name)>
reference new element spec <name:= new EString[0]>

I got this:
fromContext: SAcomponent
toContext: SAcomponent

there was no element name but only the type of item.

for example having a SAcomponent A and B SAcomponent I should get
fromContext: SAcomponent A
toContext: SAcomponent B

i send you two image of my implementation?

I tried to attach pictures here but I failed.

you leave your email?

thanks marco

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