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[Xtend2] Accessing enumeration defined in the metamodel [message #677737]

Thu, 09 June 2011 05:13

Eclipse User

In my metamodel, I defined a "ReadWriteMode" enumeration with the following values:
- ReadOnly
- WriteOnly
- ReadWrite

I have an EClass "Property" having a member of type ReadWriteMode.

In my XTend file, I am trying to write something like this:

def isRead(Property prop) {
		(prop.readWriteMode == ReadWriteMode.ReadOnly);
	}

Unfortunately Xtend doesn't accept that and says:
Couldn't resolve reference to JvmIdentifiableElement 'ReadWriteMode'

How can I manipulate enumerations in Xtend2 ?

Re: [Xtend2] Accessing enumeration defined in the metamodel [message #677781 is a reply to message #677737]

Thu, 09 June 2011 07:19

Eclipse User

Hi Cedric,

you have to use ReadWriteMode::ReadOnly to access the static field (enum
value) 'ReadOnly'.

Hope that helps,
Sebastian
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Am 09.06.11 11:13, schrieb Cedric Moonen:
> In my metamodel, I defined a "ReadWriteMode" enumeration with the
> following values:
> - ReadOnly
> - WriteOnly
> - ReadWrite
>
> I have an EClass "Property" having a member of type ReadWriteMode.
>
> In my XTend file, I am trying to write something like this:
>
> def isRead(Property prop) {
> (prop.readWriteMode == ReadWriteMode.ReadOnly);
> }
>
> Unfortunately Xtend doesn't accept that and says:
> Couldn't resolve reference to JvmIdentifiableElement 'ReadWriteMode'
>
> How can I manipulate enumerations in Xtend2 ?

Re: [Xtend2] Accessing enumeration defined in the metamodel [message #677792 is a reply to message #677781]

Thu, 09 June 2011 08:02

Eclipse User

Hi Sebastian,

In fact I already tried that and it didn't work. I now checked again and indeed you have to write it this way:

def isRead(Property prop) {
   (prop.readWriteMode == ReadWriteMode::READ_ONLY);
   }

Looking at the EMF generated code for the enumeration, the fields are in fact named: READ_ONLY, WRITE_ONLY and READ_WRITE (but the litteral values are kept identical to the ones specified in the enumeration).

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