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

Mon, 25 July 2011 05:21

Eclipse User

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

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

Mon, 25 July 2011 07:20

Eclipse User

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

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

Mon, 25 July 2011 11:38

Eclipse User

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 ?

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

Mon, 25 July 2011 12:24

Eclipse User

Hi,

do you call standalonesetup.setplatformuri in your wf?

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

~Christian

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

Tue, 26 July 2011 04:29

Eclipse User

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.

Re: [MWE] Use metamodel from other plugin [message #702410 is a reply to message #702338]

Tue, 26 July 2011 06:28

Eclipse User

Hi,

EmfRegistryMetaModel takes all EMF Metamodel that are registered to EMFs Registry.

~Christian

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