Re: [rules-users] return value restriction: not all expressions supported?

MVEL or Java? Edson 2010/12/16 Wolfgang Laun <wolfgang.laun(a)gmail.com&gt;: > Using 5.1.1 and knowing that "a Return Value restriction is a parenthesized > expression composed from literals, any valid Java primitive or object, > previously bound variables, function calls, and operators" I wrote > > OperatorOrder( $code: code, $id1: elId1, $id2: elId2 ) > CommandCode( code == $code, operands != ( $id1!=null ? ($id2!=null ? 2 : > 1) : 0 ) ) > > and got the erroneous error message: > Rule Compilation error : [Rule name='operator command: invalid number of > elements'] > > appl/domain/element/Rule_operator_command__invalid_number_of_elements_0.java > (9:714) : $id2 cannot be resolved > > Variations in the return value restriction show that it is the nesting of > -?-:- which causes the bug; a similar (but not equivalent) expression > > operands != ( ($id1!=null ? 1:0) + ($id2!=null ? 1:0) ) > > is accepted. > -W > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > > -- Edson Tirelli JBoss Drools Core Development JBoss by Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users