Error using "LINKS"

[Jesús Sánchez]

Hi all :-)

I've been playing with Tefkat and I got an error while executing the
following transformation:

Error: Implementation limitiation: BindingPair in TrackingUse not yet
supported. in RULE MakeColumns

TRANSFORMATION uml2rel : uml -> rel

NAMESPACE http://simpleuml
NAMESPACE http://relational


CLASS ClsToTbl {
UMLClass class;
Table table;
};

RULE Class2Table(c, t, k)
FORALL UMLClass c
WHERE c.kind = "persistent"
MAKE Table t
SET t.name = c.name
LINKING ClsToTbl WITH
class = c,
table = t
;

RULE MakeColumns(Col, Tbl)
FORALL Attribute a
WHERE ClsToTbl LINKS class = a.owner, table = Tbl
MAKE Column Col
;

I thought that linking rules by means of tracking classes was
possible, but maybe I'm doing something wrong.

Thank you.

[Jim Steel]

I don't think path expressions work within LINKS statements at present. You should be able to work around it by breaking a.owner our into a variable, a la

WHERE a.owner = o
AND ClsToTbl LINKS class = o, table = Tbl

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[Jesús Sánchez]

The error message was misleading to me, but now it works :-)
Thank you!

On 16 dic, 10:34, Jim Steel <jimst...@gmail.com> wrote:
> I don't think path expressions work within LINKS statements at present. You should be able to work around it by breaking a.owner our into a variable, a la
>
> WHERE a.owner = o
> AND ClsToTbl LINKS class = o, table = Tbl
>

> On 16/12/2010, at 6:19 PM, Jesús Sánchez <jesus.sanchez.cuadr...@gmail.com> wrote:
>
>
>
> > Hi all :-)
>
> > I've been playing with Tefkat and I got an error while executing the
> > following transformation:
>
> > Error: Implementation limitiation: BindingPair in TrackingUse not yet
> > supported. in RULE MakeColumns
>
> > TRANSFORMATION uml2rel : uml -> rel
>
> > NAMESPACEhttp://simpleuml

> > NAMESPACEhttp://relational