[rules-users] Drools upgrade from 3 to 5 - '||' OR syntax

[Edson Tirelli]

   That syntax was deprecated. Use "or" and "and" between patterns, and use
"&&" and "||" inside patterns between constraints. Also, the single binding
for "or" uses () if I am not mistaken:

core : ( BWCore(systemId == "1" ) or
           BWCore(systemId == "2" ) or
           BWCore(systemId == "3") )

   Finally, although that was the way to do it in Drools 3, it is terribly
inefficient compared to the Drools 4/5 constraint connectives. The same
condition above should be re-written in one of the following, much more
efficient, ways:

core : BWCore( systemId in ("1", "2", "3"  ) )
core : BWCore( systemId == "1" || == "2" || == "3" )
core : BWCore( systemId == "1" || systemId == "2" || systemId == "3" )

   []s
   Edson


2010/3/24 Nars <narayanan.anantharaman at citi.com>

>
> To add more to the above, the error comes only when we bind the matched
> object and use it in consequence. If we do not use the matched object in
> consequence, it works fine.
> --
> View this message in context:
> http://n3.nabble.com/Drools-upgrade-from-3-to-5-OR-syntax-tp471205p471332.html
> Sent from the Drools - User mailing list archive at Nabble.com.
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-- 
 Edson Tirelli
 JBoss Drools Core Development
 JBoss by Red Hat @ www.jboss.com
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