Re: [rules-users] What does the arrow ("->") mean in a rule file?

The "arrow" is an old syntax from the Drools 3.0 times that is no longer necessary and was deprecated in 4. It is the exact same thing as a bind+eval: MemberBlog(member : member -> (member.getUsername().equals( principal.getName()))) Above is exact same thing as: MemberBlog(member : member, eval(member.getUsername().equals( principal.getName()))) But in Drools 4 and 5, that can be simplified to: MemberBlog( member.username == principal.name ) Much cleaner as you can see. []s Edson 2009/5/1 lightbulb432 <veerukrishnan(a)hotmail.com&gt; > > What does the arrow ("->") mean in a rule file? I've searched on Google, > looked through the Drools documentation, and haven't been able to find > out > what it does. > > It appears in the autocomplete of my IDE for Drools, and I've seen it in > an > example in the JBoss Seam documentation, but am unable to tell what it > does: > > rule InsertMemberBlog > no-loop > activation-group "permissions" > when > principal: Principal() > memberBlog: MemberBlog(member : member -> > (member.getUsername().equals(principal.getName()))) > check: PermissionCheck(target == memberBlog, action == "insert", granted > == false) > then > check.grant(); > end; > > > -- > View this message in context: > http://www.nabble.com/What-does-the-arrow-%28%22-%3E%22%29-mean-in-a-rule... > Sent from the drools - user mailing list archive at Nabble.com. > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users > -- Edson Tirelli JBoss Drools Core Development JBoss, a division of Red Hat @ www.jboss.com _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users