Re: [rules-dev] [rules-users] MVEL parsing / keyword conflict

Edson Tirelli wrote: > Simon, > > Can you show us what syntax are you trying? Sure, I was just speculating it's known or trivial. Works: $items: LinkedList (size > 1) from collect ( Model ( ) from spatialIndex.query(...) ) Fails: $items: LinkedList (size > 1) from collect ( Model ( ) from >object.getOriginal(null) in spatialIndex.query(...)< ) The angle brackets aren't typed, they just mark what's intended as mvel. > > []s > Edson > > 2009/8/5 Simon Thum <simon.thum(a)gmx.de&gt; > >> Hi all, >> >> I've stumbled on some mvel integration issues in 5.0.1. I'm using drools >> to do, among others, spatial reasoning. At insertion time I maintain a >> specialized index, which can be queried later using [collect] from. This >> works fine in general. >> >> However, as soon as I use the mvel 2 projections a.k.a. 'in' keyword, >> hell breaks loose. 'in' is described here: >> http://mvel.codehaus.org/MVEL+2.0+Projections+and+Folds >> >> But I only seem to get syntax errors. If it is possible, to somehow >> escape keywords or explicitly pipe through the mvel part, please let me >> know! >> >> Needless to say, this feature would be great to have since my object >> model is mainly fixed and 'is' allows me to compensate that. Worse, I'd >> need to assert objects I don't want to assert to work around. >> >> I tried parenthesizing, only to discover that >> ... from valid_stmt >> >> is fine, but >> >> ... from (valid_stmt) >> >> won't work either. Error 101, reason unknown, but it doesn't even make >> it through the parser. >> >> I'd really appreciate to be given an idea why what I did went wrong. >> Googling around didn't get me too far. >> >> Cheers, >> >> 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