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Population of emf model data values in content assist [message #1228693]

Tue, 07 January 2014 15:50

Eclipse User

Hello,

I needed quick favour from the experts as I am new to Xtext.

There is a EMF Model A which is loaded. And this Emf model A has EList.

Another dsl xtext grammer B which has some minimal grammer implemented. Content assist works fine for thst

Now I have a requirement to have Elist from A to be populated in the content assist. I did update the grammer file B to import the .ecore of model A and also updated Mwe2 to refer to the .genemodel of model A. Now I am not getting the heads up on how should get the Data in the EList of model A also to be populated in the content assist. I searched as much but nothing is in line with what I require.

Uploaded MWE2 and xtext for your reference

Your help will be really be appreciated.

Thanks
Shubha

Attachment: GenerateTriggerSource.mwe2
(Size: 6.44KB, Downloaded 203 times)
Attachment: TriggerSource.xtext
(Size: 2.00KB, Downloaded 141 times)

Re: Population of emf model data values in content assist [message #1229021 is a reply to message #1228693]

Wed, 08 January 2014 10:04

Eclipse User

Hi,

hi your grammar looks strange to me

if i understand you correct you have the following
- there a an ecore metamodel and you have an instance (not xtext based)
- you have a xtext grammar and want to reference non xtext stuff.

therefore you need an iresourceserviceprovider for the non xtext stuff
e.g. http://christiandietrich.wordpress.com/2011/07/17/xtext-2-0-and-uml/

Re: Population of emf model data values in content assist [message #1229094 is a reply to message #1229021]

Wed, 08 January 2014 12:57

Eclipse User

Hi,

Thanks so much for the quick response.
I went through the blog and refers to more of a Class in the content assist. But I wanted to have EObject of that class in the content assist. Let me rephrase and explain what I want.

I have Ecore model with a EClass Person in that.

The Person class has EAttributes firstname and lastname.

Now the in the model there are 5 persons data stored like
firstNameA LastNameA
firstNameB LastNameB
firstNameC LastNameC
firstNameD LastNameD
firstNameE LastNameE

And also I have Xtext dsl grammer which has many other grammer implemented which has different contentassist working.

I would like to get the data(5 persons data stored) in my editor's content assist. I wanted help on that

Hope i am more clearer now.

Thanks so much
Shubha

[Updated on: Wed, 08 January 2014 13:01] by Moderator

Re: Population of emf model data values in content assist [message #1229101 is a reply to message #1229094]

Wed, 08 January 2014 13:19

Eclipse User

Hi,

hi and what do you in content assist?
should you have a cross reference to a person and you can choose which one is it?

Re: Population of emf model data values in content assist [message #1229141 is a reply to message #1229101]

Wed, 08 January 2014 15:07

Eclipse User

Great!!!! that was quick. Thanks.

Yes I have to cross reference to a particular person and choose one through content assist on my editor.

Thanks again
Shubha

Re: Population of emf model data values in content assist [message #1229144 is a reply to message #1229141]

Wed, 08 January 2014 15:10

Eclipse User

Hi,

this is exactly what i do with uml Classes.

do the same for your Person and you are fine

Re: Population of emf model data values in content assist [message #1229560 is a reply to message #1229144]

Thu, 09 January 2014 13:09

Eclipse User

Thanks so much Christian.

Ya with this I feel I converging to the point.
But I wanted a one more simple clarification.

Actually If I go with your UML example I want one of the attributes value to be cross referenced.
To put in the right way if Class has attributes like int X, String Y, then all the values of Y needs to cross referenced.

How can achieve that part.

[Updated on: Thu, 09 January 2014 13:10] by Moderator

Re: Population of emf model data values in content assist [message #1229563 is a reply to message #1229560]

Thu, 09 January 2014 13:16

Eclipse User

hi

i am not sure if i got you.

i meant. to the same stuff i did for uml.ecore for your.ecore

Re: Population of emf model data values in content assist [message #1229564 is a reply to message #1229563]

Thu, 09 January 2014 13:18

Eclipse User

if you want to cross reference a string you can do this
by

ref=[Thing|STRING]

maybe you should write a dsl for thing Things tooo.

Re: Population of emf model data values in content assist [message #1229567 is a reply to message #1229564]

Thu, 09 January 2014 13:26

Eclipse User

Sorry for bothering you again.

What I mean is If I go with Person I need to cross reference only firstname then how will my dsl look like. I mean we need to refer to firstname somewhere right?

[Updated on: Thu, 09 January 2014 13:26] by Moderator

Re: Population of emf model data values in content assist [message #1229569 is a reply to message #1229567]

Thu, 09 January 2014 13:31

Eclipse User

Hi,

am not quite sure what you mean.
you refer to a person through an identifer you give to it.

Re: Population of emf model data values in content assist [message #1229572 is a reply to message #1229569]

Thu, 09 January 2014 13:38

Eclipse User

There is nothing called ID for it but there I have attribute in the Person Eclass as firstName which needs to be cross referenced.

Re: Population of emf model data values in content assist [message #1229573 is a reply to message #1229572]

Thu, 09 January 2014 13:39

Eclipse User