Hi, I am pocing/learning drools and I am trying to implements Compound Value Restrictions using 'In' in a decision table. I can do this in a rule like rule "CoverType Example" when     $risk : Data( coverType in ("A","B", "C", "D")) then     result.add("CoverType was one of A, B C or D"); end I can also implement this in a decision table in a long winded fashion Condition, Action Data,        result coverType, add("$param") A,              CoverType was one of A, B C or D B,              CoverType was one of A, B C or D C,              CoverType was one of A, B C or D D,              CoverType was one of A, B C or D Is there a compact way to do this using a Compound Value Restriction using in? Something like: Condition, Action Data,        result coverType in, add("$param") "A,B,C,D",              CoverType was one of A, B C or D What goes in the script part "coverType in"? The number of items in the list can be variable, so don't want to write something that has $1, $2, $3, $4 Thanks David

This is straightforward: You use $param, as usual, in the code snippet, and the list in the cell below: Data coverType in ( $param ) "A","B", "C", "D" "X","Y","Z" To obtain the actual value from the fact, use a binding variable and refer to this in the action. Data $ct: coverType in ( $param ) -------------------- result add( $ct ) and an 'x' in the cells below, where required. -W 2011/2/5 David Smith <mail(a)davesmith.me.uk&gt; > > Hi, > I am pocing/learning drools and I am trying to implements Compound Value > Restrictions using 'In' in a decision table. > I can do this in a rule like > rule "CoverType Example" > when >     $risk : Data( coverType in ("A","B", "C", "D")) > then >     result.add("CoverType was one of A, B C or D"); > end > I can also implement this in a decision table in a long winded fashion > Condition, Action > Data,        result > coverType, add("$param") > A,              CoverType was one of A, B C or D > B,              CoverType was one of A, B C or D > C,              CoverType was one of A, B C or D > D,              CoverType was one of A, B C or D > Is there a compact way to do this using a Compound Value Restriction using > in? > Something like: > Condition, Action > Data,        result > coverType in, add("$param") > "A,B,C,D",              CoverType was one of A, B C or D > What goes in the script part "coverType in"? > The number of items in the list can be variable, so don't want to write > something that has $1, $2, $3, $4 > Thanks > David > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users