Re: [rules-dev] Functional programming in Drools: java 5 minimum with java 8 support

Last time Mark asked, there was a huge outcry - some people using some Java that's standing still at Java 5. -W On 20 October 2011 13:21, Toni Rikkola <toni.rikkola(a)gmail.com <mailto:toni.rikkola@gmail.com>> wrote: I would also like to keep it as close to Java as possible. There are few problems here: * It could never go beyond Java * We are using Java 5 and just considering Java 6, this would be a huge leap :-) But then again if we don't use the Java way, then what will we do when Drools reaches Java 8, support both? Toni On Oct 20, 2011, at 11:08 AM, Geoffrey De Smet wrote: > Interesting stuff. > This is basically > "closures" which will be available in JDK 8 > + LHS closure pattern support > > 1) About "closures" which will be available in JDK 8: > Since functions contain Java code, which is imperative, not > declarative, I don't consider that DRL turf any more. > *Our closure syntax should there should be exactly the same as > Java 8.* > Here's their syntax, which looks the same on first sight, but the > devil is in the details (= unreleased spec): > http://mail.openjdk.java.net/pipermail/lambda-dev/2011-September/003936.html > Either we wait for JDK 8 to be released to support closures > (current release date is 2012 according to Mark R.'s "plan B" > that released JDK 7 in 2011) > or we implement it just like the JDK8 with the exact same syntax > (which is a LOT of work). > > 2) About LHS closure pattern support. > This builds on top of 1) to allow usage of closures in the LHS. > Cool stuff, I like the piping idea. > > Op 19-10-11 23:12, Mauricio Salatino schreef: >> Hi Mario, that document looks great.. I will take some time to >> read it and I will try to give some feedback. >> I was playing with cypher (from neo4j, a graph oriented DB) >> (total newbie on that) but looking at your in line acc functions >> I think that we can take some concepts from cypher and apply >> them in DRL. >> Cheers >> >> On Wed, Oct 19, 2011 at 5:59 PM, Mario Fusco >> <mario.fusco(a)gmail.com <mailto:mario.fusco@gmail.com>> wrote: >> >> Hi all, >> >> as anticipated by Mark, I put down some ideas on how we >> could start introducing some functional programming features >> in the DRL. >> >> http://community.jboss.org/wiki/FunctionalProgrammingInDrools >> >> It's needless to say that the document has to been >> considered just a draft in its very first stage and any >> feedback or suggestion to improve or clarify it is welcome. >> >> Mario >> >> _______________________________________________ >> rules-dev mailing list >> rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> >> https://lists.jboss.org/mailman/listinfo/rules-dev >> >> >> >> >> -- >> - CTO @ http://www.plugtree.com <http://www.plugtree.com/> >> - MyJourney @ http://salaboy.wordpress.com >> <http://salaboy.wordpress.com/> >> - Co-Founder @ http://www.jugargentina.org >> <http://www.jugargentina.org/> >> - Co-Founder @ http://www.jbug.com.ar <http://www.jbug.com.ar/> >> >> - Salatino "Salaboy" Mauricio - >> >> >> _______________________________________________ >> rules-dev mailing list >> rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> >> https://lists.jboss.org/mailman/listinfo/rules-dev > > -- > With kind regards, > Geoffrey De Smet > _______________________________________________ > rules-dev mailing list > rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> > https://lists.jboss.org/mailman/listinfo/rules-dev _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org <mailto:rules-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/rules-dev _______________________________________________ rules-dev mailing list rules-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-dev