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15 Minute Tutorial Extended(Problems with the Generator) [message #1729883]

Tue, 19 April 2016 23:48

Tatiana Wert

Messages: 3
Registered: April 2016

Junior Member

Hello!
I just started learning XTEXT. I successfully completed the 15 Minute Tutorial. I am using Eclipse Mars and the latest version of Xtext.

I am modified DomainmodelGenerator.xtend according to the tutorial in order to generate code for my future models. But every time I am trying to launch a new Eclipse Application I got an error (in file src-gen/org/example/domainmodel/AbstractDomainmodelRuntimeModule.java):

Type mismatch: cannot convert from Class<DomainmodelGenerator> to Class<? extends IGenerator2>

The error occurs in the generated file on that piece of code:
// contributed by org.eclipse.xtext.xtext.generator.generator.GeneratorFragment2
public Class<? extends IGenerator2> bindIGenerator2() {
return DomainmodelGenerator.class;
}

Here is my code:

package org.example.domainmodel.generator

import org.eclipse.emf.ecore.resource.Resource
import org.eclipse.xtext.generator.IGenerator
import org.eclipse.xtext.generator.IFileSystemAccess
import org.example.domainmodel.domainmodel.Entity
import org.example.domainmodel.domainmodel.Feature
import org.eclipse.xtext.naming.IQualifiedNameProvider

import com.google.inject.Inject

class DomainmodelGenerator implements IGenerator {

@Inject extension IQualifiedNameProvider

override void doGenerate(Resource resource, IFileSystemAccess fsa) {
for (e : resource.allContents.toIterable.filter(Entity)) {
fsa.generateFile(
e.fullyQualifiedName.toString("/") + ".java",
e.compile)
}
}

def compile(Entity e) '''
«IF e.eContainer.fullyQualifiedName != null»
package «e.eContainer.fullyQualifiedName»;
«ENDIF»

public class «e.name» «IF e.superType != null
»extends «e.superType.fullyQualifiedName» «ENDIF»{
«FOR f : e.features»
«f.compile»
«ENDFOR»
}
'''

def compile(Feature f) '''
private «f.type.fullyQualifiedName» «f.name»;

public «f.type.fullyQualifiedName» get«f.name.toFirstUpper»() {
return «f.name»;
}

public void set«f.name.toFirstUpper»(«f.type.fullyQualifiedName» «f.name») {
this.«f.name» = «f.name»;
}
'''
}

Thank you in advance with your help!

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