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Integrating external classes into ecore models [message #422417]

Fri, 05 September 2008 08:39

Maik Wurdel

Messages: 9
Registered: July 2009

Junior Member

Hi,

I've a question regarding ecore models. Is there a way to integrate
external classes (e.g. java.lang.Object or custom not ecore/emf based
classes) into ecore models.

I'm using an external libary which is not based ecore/emf. Can I refer to
external classes within the ecore file?

It would be even satisfying to use java.lang.Object and add cast
statements. I just need an attribute of this custom type. Of course I can
manually add the attribute in the generated code but it would be much
cleaner to do it using ecore/emf.

Thanks for your effort.
Maik Wurdel

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Re: Integrating external classes into ecore models [message #422424 is a reply to message #422417]

Fri, 05 September 2008 12:01

Ed Merks

Messages: 33141
Registered: July 2009

Senior Member

This is a multi-part message in MIME format.
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Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 7bit

Maik,

Comments below.

Maik Wurdel wrote:
> Hi,
>
> I've a question regarding ecore models. Is there a way to integrate
> external classes (e.g. java.lang.Object or custom not ecore/emf based
> classes) into ecore models.
> I'm using an external libary which is not based ecore/emf. Can I refer
> to external classes within the ecore file?
You can define EDataTypes that are act as wrappers for existing
classes. Ecore itself has ones like that for java.lang.String, i.e.,
EString. There's even EJavaObject for referring to things of type
java.lang.Object.
>
> It would be even satisfying to use java.lang.Object and add cast
> statements. I just need an attribute of this custom type. Of course I
> can manually add the attribute in the generated code but it would be
> much cleaner to do it using ecore/emf.
Read the section on "Data Types" in

http://help.eclipse.org/ganymede/index.jsp?topic=/org.eclips e.emf.doc/references/overview/EMF.html

>
> Thanks for your effort.
> Maik Wurdel
>

--------------090700040709040005000602
Content-Type: text/html; charset=ISO-8859-15
Content-Transfer-Encoding: 8bit

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta content="text/html;charset=ISO-8859-15"
http-equiv="Content-Type">
</head>
<body bgcolor="#ffffff" text="#000000">
Maik, 
 
Comments below. 
 
Maik Wurdel wrote:
<blockquote
cite="mid:bacec6984fb18c7330c9181e8edf6950$1@www.eclipse.org"
type="cite">Hi,
 
 
I've a question regarding ecore models. Is there a way to integrate
external classes (e.g. java.lang.Object or custom not ecore/emf based
classes) into ecore models. 
I'm using an external libary which is not based ecore/emf. Can I refer
to external classes within the ecore file?
 
</blockquote>
You can define EDataTypes that are act as wrappers for existing
classes.

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

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Re: Integrating external classes into ecore models [message #422427 is a reply to message #422424]

Fri, 05 September 2008 12:45

Maik Wurdel

Messages: 9
Registered: July 2009

Junior Member

This works perfectly fine and is very handy.

Thanks
Maik

Ed Merks wrote:

> Maik,

> Comments below.

> Maik Wurdel wrote:
>> Hi,
>>
>> I've a question regarding ecore models. Is there a way to integrate
>> external classes (e.g. java.lang.Object or custom not ecore/emf based
>> classes) into ecore models.
>> I'm using an external libary which is not based ecore/emf. Can I refer
>> to external classes within the ecore file?
> You can define EDataTypes that are act as wrappers for existing
> classes. Ecore itself has ones like that for java.lang.String, i.e.,
> EString. There's even EJavaObject for referring to things of type
> java.lang.Object.
>>
>> It would be even satisfying to use java.lang.Object and add cast
>> statements. I just need an attribute of this custom type. Of course I
>> can manually add the attribute in the generated code but it would be
>> much cleaner to do it using ecore/emf.
> Read the section on "Data Types" in

>
http://help.eclipse.org/ganymede/index.jsp?topic=/org.eclips e.emf.doc/references/overview/EMF.html

>>
>> Thanks for your effort.
>> Maik Wurdel
>>

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