oh ok - so its not really broken - but perhaps in the past it used java dialect for functions even in the same DRL...
On Tue, Oct 13, 2009 at 9:55 AM, Mark Proctor <[email protected]> wrote: > As MVEL functions can't be called directly from java, this doesn't work yet. > > I did get MVEL functions to work from the drools-clips module, so there is > some plumbing for this. We'd probably have to generate stab wrappers to get > MVEL functions working in DRL itsef, so both java and mvel semantics can > call it. > > Mark > Michael Neale wrote: > > OK created this: https://jira.jboss.org/jira/browse/JBRULES-2298 > > On Tue, Oct 13, 2009 at 9:38 AM, Michael Neale <[email protected]> > wrote: > > > Hi Steve - yes that seems to work - hence why I have not noticed it > before. I wonder with 4.0.x if it was actually using MVEL for the > function body, or flipping back to the java dialect (which is what > happens when you put it in a different DRL now). > > On Tue, Oct 13, 2009 at 1:24 AM, Steve Ronderos <[email protected]> > wrote: > > > Hi Michael, > > We are experiencing the same issue. We have had to put our functions in a > different .drl to get around this for now. If it helps any, this was > working ok in version 4.0.7, and broke when we went to 5.0.1. > > Thanks, > > Steve Ronderos > > [email protected] wrote on 10/11/2009 11:52:04 PM: > > > > [image removed] > > [rules-dev] MVEL in functions? > > Michael Neale > > to: > > Rules Dev List > > 10/11/2009 11:53 PM > > Sent by: > > [email protected] > > Please respond to Rules Dev List > > Hey is mvel in functions broken? I have a distant memory of something > along these lines. I was just trying something like: > > package jboss.cloud > > dialect "mvel" > > > #trying to get functions working... > rule "something" > when > s: SimpleFact(id == 42, name == "michael") > then > System.out.println("hello"); > end > > function String doSomething() { > return "hey"; > } > > And I get: > > java.lang.NullPointerException > at org.drools.rule.builder.dialect.mvel.MVELDialect.compile > (MVELDialect.java:510) > at org.drools.rule.builder.dialect.mvel.MVELDialect.addFunction > (MVELDialect.java:338) > at > org.drools.compiler.PackageBuilder.addFunction(PackageBuilder.java:1104) > at > org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:626) > at org.drools.compiler.PackageBuilder.addPackageFromDrl > (PackageBuilder.java:290) > at org.drools.compiler.PackageBuilder.addKnowledgeResource > (PackageBuilder.java:488) > at org.drools.builder.impl.KnowledgeBuilderImpl.add > (KnowledgeBuilderImpl.java:25) > > (haven't tried trunk) - anyone else seen this? > removing the dialect "mvel" at the package level at it is fine. > > > > > > -- > Michael D Neale > home: www.michaelneale.net > blog: michaelneale.blogspot.com > _______________________________________________ > rules-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-dev > > > _______________________________________________ > rules-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-dev > > > > > -- > Michael D Neale > home: www.michaelneale.net > blog: michaelneale.blogspot.com > > > > > > _______________________________________________ > rules-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/rules-dev > > -- Michael D Neale home: www.michaelneale.net blog: michaelneale.blogspot.com _______________________________________________ rules-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/rules-dev
