| OCL generator and EMF super types [message #1774435] |
Sat, 14 October 2017 06:25  |
Eclipse User |
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Hi all,
I detect a strange behavior during the EMF generation when I have OCL constraints generated in the EMF java code.
So, I have a first metamodel
package metamodel : metamodel = 'http://metamodel'
{
class ClassA extends Class
{
attribute name : String[?];
invariant name_inv: name <> 'test';
}
class Class;
}
In the associated genmodel, I add this annotation
<genAnnotations source="http://www.eclipse.org/OCL/GenModel">
<details key="Use Delegates" value="false"/>
</genAnnotations>
EMF generation works perfectly, and I code of my name_inv is generated:
public boolean name_inv(final DiagnosticChain diagnostics, final Map<Object, Object> context) {
/**
*
* inv name_inv:
* let severity : Integer[1] = 'ClassA::name_inv'.getSeverity()
* in
* if severity <= 0
* then true
* else
* let result : Boolean[1] = name <> 'test'
* in
* 'ClassA::name_inv'.logDiagnostic(self, null, diagnostics, context, null, severity, result, 0)
* endif
*/
final /*@NonInvalid*/ Executor executor = PivotUtilInternal.getExecutor(this);
final /*@NonInvalid*/ IntegerValue severity_0 = CGStringGetSeverityOperation.INSTANCE.evaluate(executor, MetamodelTables.STR_ClassA_c_c_name_inv);
final /*@NonInvalid*/ boolean le = OclComparableLessThanEqualOperation.INSTANCE.evaluate(executor, severity_0, MetamodelTables.INT_0).booleanValue();
/*@NonInvalid*/ boolean symbol_0;
if (le) {
symbol_0 = ValueUtil.TRUE_VALUE;
}
else {
final /*@NonInvalid*/ String name = this.getName();
final /*@NonInvalid*/ boolean result = !MetamodelTables.STR_test.equals(name);
final /*@NonInvalid*/ boolean logDiagnostic = CGStringLogDiagnosticOperation.INSTANCE.evaluate(executor, TypeId.BOOLEAN, MetamodelTables.STR_ClassA_c_c_name_inv, this, (Object)null, diagnostics, context, (Object)null, severity_0, result, MetamodelTables.INT_0).booleanValue();
symbol_0 = logDiagnostic;
}
return Boolean.TRUE == symbol_0;
}
Now, I have this second metamodel:
import metamodel : '../../metamodel.emf/model/Metamodel.ecore#/' ;
package metamodel2 : metamodel2 = 'http://metamodel2'
{
class ClassB extends metamodel::Class,metamodel::ClassA;
}
So, I have this diagram:
When I generate the EMF model code of the second metamodel,
I obtain errors on ClassBImpl class saying that:
Quote:
The type ClassBImpl must implement the inherited abstract method ClassA.name_inv(DiagnosticChain, Map<Object,Object>)
To resolve it, I add the unimplemented method using the quick fix.
HOWEVER, when I edit my second metamodel by changing the order of the extended classes,
import metamodel : '../../metamodel.emf/model/Metamodel.ecore#/' ;
package metamodel2 : metamodel2 = 'http://metamodel2'
{
class ClassB extends metamodel::ClassA, metamodel::Class;
}
the generation works perfectly without errors.
So, my questions are:
Is that a OCL generation bug?
Otherwise, Is the order of extended classes important?
and must conform to a specific representation enforced by EMF and OCL ?
[Updated on: Sat, 14 October 2017 06:42] by Moderator |
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