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[MWE] Use metamodel from other plugin [message #701584]

Mon, 25 July 2011 09:21

Patrick Schmitt

Messages: 87
Registered: July 2009

Member

Hello guys,
I am using a xpand generator in my mwe workflow, which requires a metamodel file.
Until now I always stored the metamodel and the workflow file in the same eclipse plugin.

<workflow>
	<property name='metaecorefile1' value="/model/functionmodel.ecore"/>


	<!-- generate code -->
  	<component id="generator" class="org.eclipse.xpand2.Generator">
  		<expand value="functionmodelGenerator::function::main FOR model"/>
   		
		<metaModel class="org.eclipse.xtend.typesystem.emf.EmfMetaModel">
     		<metaModelFile value='${metaecorefile1}'/>
  		</metaModel>

Now I want to store the ecore file in a different plugin. It is possible to specify the path to an other plugin or are other mechanism for that case ?

Sincerly
Patrick

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Re: [MWE] Use metamodel from other plugin [message #701639 is a reply to message #701584]

Mon, 25 July 2011 11:20

Christian Dietrich

Messages: 14496
Registered: July 2009

Senior Member

Hi,

Which Mwe Version do you use?
=> if 1.1.0 then use platform:/resource/plugin/.....
Is the second plugin a workspace project too?
=> then use platform:/resource/plugin/.....
Do you use dynamic EMF or do you have to Java Classes Generated too?
=> use the package instead of dynamic emf

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: [MWE] Use metamodel from other plugin [message #701785 is a reply to message #701639]

Mon, 25 July 2011 15:38

Patrick Schmitt

Messages: 87
Registered: July 2009

Member

Yes I am using EMF Modeling Workflow Engine 1.1.0.

I tried <property name='metaecorefile1' value="platform:/resource/com.ksb.mechatronic.modeller/model/functionmodel.ecore"/>,
but when executing the code I get an error:
org.eclipse.emf.mwe.core.ConfigurationException: org.eclipse.emf.ecore.resource.Resource$IOWrappedException: Resource '/com.ksb.mechatronic.modeller/model/functionmodel.ecore' does not exist.
The ecore file is in the build path of that plugin.

My second try:

I also have the generated java classes in that other plugin, but they are not recognised by the workflow.
I set the plugin, which contains the ecore file and the generated java classes, as required dependency and
added the generated packages to the imported packages of my generator plugin without success.

What must i do that the workflow knows the types of the imported package ?

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Re: [MWE] Use metamodel from other plugin [message #701820 is a reply to message #701785]

Mon, 25 July 2011 16:24

Christian Dietrich

Messages: 14496
Registered: July 2009

Senior Member

Hi,

do you call standalonesetup.setplatformuri in your wf?

Use the classes:
org.eclipse.xtend.typesystem.emf.EmfMetaModel.setMetaModelPackage(String)

~Christian

Need professional support for Xtext, Xpand, EMF?
Go to: https://www.itemis.com/en/it-services/methods-and-tools/xtext
Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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Re: [MWE] Use metamodel from other plugin [message #702338 is a reply to message #701820]

Tue, 26 July 2011 08:29

Patrick Schmitt

Messages: 87
Registered: July 2009

Member

Hello Christian,
finally i found the solution Smile

I must not specify the direct path to my metamodel,
i just have to add following code to the workflow to get it working:


<bean id="mm_emf" class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>



<component id="generator" class="org.eclipse.xpand2.Generator">
<expand value="functionmodelGenerator::function::main FOR model"/>

<metaModel idRef="mm_emf"/>

What is that code doing? I want to understand it.

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