[jboss-jira] [JBoss JIRA] Closed: (JBRULES-232) if variable is bound to multiple columns, that should mean an implicit join on identity

Thu May 3 20:23:30 EDT 2007

     [ http://jira.jboss.com/jira/browse/JBRULES-232?page=all ]

Mark Proctor closed JBRULES-232.
--------------------------------

    Fix Version/s:     (was:  4.0.0.MR3)
       Resolution: Rejected

I'm rejecting this, I believe the code currently throws an error for this.

> if variable is bound to multiple columns, that should mean an implicit join on identity
> ---------------------------------------------------------------------------------------
>
>                 Key: JBRULES-232
>                 URL: http://jira.jboss.com/jira/browse/JBRULES-232
>             Project: JBoss Rules
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Drl Parser/Builder
>    Affects Versions: 3.0-rc2
>            Reporter: Michael Neale
>         Assigned To: Mark Proctor
>
> This is based on some discussions on the mailling list.
> So:
> m : Message(foo == "bar")
> m : Message(foo != "42")
> should be the same as 
> m : Message(foo == "bar", foo != 42)
> this works as the same variable is "bound" each time. At the moment it rebinds.
> The "new" behaviour should be consistent with Jess, and it does indeed make things simpler from a users point of view, and DSLs much more powerful.
> Obviously if nothing it bound, then it is just as normal.
> It *may* be possible to do this entirely in the parser, not sure at this stage... further investigation required.

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