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JVMField with primitive type [message #894994]

Wed, 11 July 2012 11:10

Florian Pirchner

Messages: 94
Registered: July 2009

Member

Hi,

i am trying to create a JVMField with a JVMTypeReference to a primitive boolean type.

Did many approaches, but all ended in exceptions due to not resolvable types.

I tried the following with different types of JVMTypeReference:

		JvmPrimitiveType primitiveType = typesFactory.createJvmPrimitiveType();
		primitiveType.setSimpleName("boolean");
		JvmParameterizedTypeReference primitiveReference = typesFactory
				.createJvmParameterizedTypeReference();
		primitiveReference.setType(primitiveType);


		JvmField field = typesFactory.createJvmField();
		field.setSimpleName(name);
		field.setVisibility(JvmVisibility.PRIVATE);
		field.setType(primitiveReference);

I also inspected the created type reference from domainModel-example. But got no results.

Can anybody point me to an example or something else that i could browser deeper in that topic?
Btw. creating fields with Object-Types is really easy and straight forward.

Thanks a lot,
Florian

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Re: JVMField with primitive type [message #894996 is a reply to message #894994]

Wed, 11 July 2012 11:18

Florian Pirchner

Messages: 94
Registered: July 2009

Member

Exactly in that moment i found org.eclipse.xtext.common.types.util.Primitives

It offers a method asPrimitiveIfWrapperType()

I try to use that class and post the results.

Thanks,
Florian

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Re: JVMField with primitive type [message #895002 is a reply to message #894996]

Wed, 11 July 2012 11:32

Florian Pirchner

Messages: 94
Registered: July 2009

Member

org.eclipse.xtext.common.types.util.Primitives solves the Problem:

		JvmTypeReference typeRef = newTypeRef(sourceElement, primitiveType,
				(JvmTypeReference[]) null);

		JvmField result = typesFactory.createJvmField();
		result.setSimpleName(name);
		result.setVisibility(JvmVisibility.PRIVATE);
		result.setType(cloneWithProxies(primitives
				.asPrimitiveIfWrapperType(typeRef)));

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Re: JVMField with primitive type [message #895005 is a reply to message #894994]

Wed, 11 July 2012 11:31

Sebastian Zarnekow

Messages: 3118
Registered: July 2009

Senior Member

Florian,

you should always use TypeReferences#getTypeForName(Class, Context)
findDeclaredType(Boolean.TYPE, some context) to obtain a valid instance
of JvmType.

Regards,
Sebastian
--
Need professional support for Eclipse Modeling?
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Am 11.07.12 13:10, schrieb Florian Pirchner:
> Hi,
>
> i am trying to create a JVMField with a JVMTypeReference to a primitive
> boolean type.
>
> Did many approaches, but all ended in exceptions due to not resolvable
> types.
>
> I tried the following with different types of JVMTypeReference:
>
> JvmPrimitiveType primitiveType = typesFactory.createJvmPrimitiveType();
> primitiveType.setSimpleName("boolean");
> JvmParameterizedTypeReference primitiveReference = typesFactory
> .createJvmParameterizedTypeReference();
> primitiveReference.setType(primitiveType);
>
>
> JvmField field = typesFactory.createJvmField();
> field.setSimpleName(name);
> field.setVisibility(JvmVisibility.PRIVATE);
> field.setType(primitiveReference);
>
>
> I also inspected the created type reference from domainModel-example.
> But got no results.
>
> Can anybody point me to an example or something else that i could
> browser deeper in that topic?
> Btw. creating fields with Object-Types is really easy and straight forward.
>
> Thanks a lot,
> Florian

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Re: JVMField with primitive type [message #895009 is a reply to message #895002]

Wed, 11 July 2012 11:49

Florian Pirchner

Messages: 94
Registered: July 2009

Member

Hi Sebastian,

thanks.

Now my result looks like this and works fine:

                Class<?> primitiveType = Boolean.TYPE;

		JvmTypeReference typeRef = newTypeRef(sourceElement, primitiveType,
				(JvmTypeReference[]) null);
		JvmField result = typesFactory.createJvmField();
		result.setSimpleName(name);
		result.setVisibility(JvmVisibility.PRIVATE);
		result.setType(cloneWithProxies(typeRef));
		associate(sourceElement, result);
		return initializeSafely(result, initializer);

The class Primitives is not required anymore.

Thanks,
Florian

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