Re: [rules-users] list operations in "then" part

No, this doesn't work... Drools-5.2 doesn't help either :-( 2011/6/2 Joe White <Joe.White(a)recondotech.com&gt;: > If you cast $b on the RHS it will probably work. We’ve had to do this in the > past for rules like this. > > > > …. > > then: >  Test fact = new Test(); > > Book rhsBook = (Book)$b; >  fact.getList().addAll( rhsBook.authors ); >  insert(fact); > end > > > > > > From: rules-users-bounces(a)lists.jboss.org > [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Mark Proctor > Sent: Thursday, June 02, 2011 8:52 AM > To: rules-users(a)lists.jboss.org > Subject: Re: [rules-users] list operations in "then" part > > > > On 02/06/2011 08:14, Wolfgang Laun wrote: > > On 1 June 2011 21:43, Simon Chen <simonchennj(a)gmail.com&gt; wrote: > > Hi all, > > I am always confused about what we can do in the "then" part of the rule. > > In particular, I have problem duplicate a list. For example: > > when: >  $b: Book( "james" memberOf authors ) > then: >  Test fact = new Test(); >  fact.getList().addAll( $b.authors ); >  insert(fact); > end > > The error message reads like this: > > BuildError: Unable to build expression for 'consequence': [Error: > Failed to compile: 2 compilation error(s): >  - (1,7) unqualified type in strict mode for: $b >  - (1,12) unqualified type in strict mode for: authors] > > What is the right way to do this? > > Granted - the error message is a puzzle in itself, but basically, the RHS > must be written according to Java rules. Hence, if $b is an object of type > Book, $b.authors depends on the (Java!) visibility of member authors. If it > isn't public, you must use the getter. > > I believe he's using "mvel" judging by the error. > > mark > > > -W > > > Thanks. > -Simon > _______________________________________________ > 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 > > > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > >