Dear Sir, I am new to Drools and I want to ask how can I implement the classical transitive closure in Drools. For instance we have a bunch of facts edge/2 and the transitive closure:
reach(X,Y):- edge(X,Y). reach(X,Y):- edge(X,Z),reach(Z,Y). Should I create classes Edge and Reach with attributes source and target? rule "reachDirect" when exists( Edge(X,Y) ) then insertLogical( new Reach(X,Y) ); end rule "reachIndirect" when exists( Edge(X,Z) ) exists( Reach(Z,Y) ) then insertLogical( new Reach(X,Y) ); end Regards, Paul Fodor _______________________________________________ rules-users mailing list rules-users@lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users