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

2011/6/2 Wolfgang Laun<wolfgang.laun(a)gmail.com>: > On 1 June 2011 21:43, Simon Chen<simonchennj(a)gmail.com> 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 always have the variables "protected" and use public getters. For other variables, $b.xxx just works, as long as getXxx() exists. But for $b.authors, even if I have getAuthors() there, it still doesn't work. That's why I'm suspecting something wrong with the list - the only difference is that authors is an EList object...

Still don't know why... -Simon > -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