RE: [TM4J-users] About Tolog Query

[Kal A. <ka...@te...>]

Hi Dandan,

Looking at the query, I think the problem might be that $ROLE2 is not a
bound variable. The /= predicate requires that both variables are bound to
an object when it is evaluated. I think that you might actually have
intended $ROLE1 /= $ROLE.

Also I don't think the parser will allow a space between the $ an the
variable name - so you must write $ROLE1 and not $ ROLE1 (though that might
just be an email formatting error!)

Cheers,

Kal

> -----Original Message-----
> From: tm4...@li... [mailto:tm4j-users-
> ad...@li...] On Behalf Of Wang, Dandan
> Sent: 18 November 2005 17:39
> To: tm4...@li...
> Cc: c_f...@us...
> Subject: [TM4J-users] About Tolog Query
> 
> Hi Everyone,
> 
> I'm trying to run the following Tolog Query in the TMNav Window, But it
> got some exceptions.
> 
>       select $T1,$T2 from
> 
>              role-player($ROLE,$T1),
> 
>             association-role($ASSOC,$ROLE1), association-
> role($ASSOC,$ROLE1),
> 
>              role-player($ROLE,$T2),  type($ASSOC, x1122ljt3i-2bd),
> 
>            $ ROLE1 /= $ROLE2, $T1/=$T2 ?
> 
>     ("x1122ljt3i-2bd" is the association type id)
> 
>  The problem may come from the last line of this query --    ROLE1 /=
> ROLE2, $T1 /= $T2 ?  the "/=" predicate.
>  Because whenI tried to run the query without the last line., it got some
> resultsets.
> 
>  Does anyone know how to overcome this problem? Or is that becuase TMNav
> tolog query does not support this kind of predicates?
> 
> I appreciate...
> 
> 
> Dandan
> 
> 
> 
>