Hy!
What does '->' opeator mean?
`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;
`