Dave Thomas wrote: > > Folks: > > Do we have any common examples in Ruby where we use mixins simply to > tag a class (in the same way that Java uses "implements > Serializable")? SOAP::Marshallable or XMLRPC::Marshallable for example are used mainly for this purpose. Additionally XMLRPC::Marshallable includes two methods __get_instance_variables and __set_instance_variables. Regards, Michael -- Michael Neumann merlin.zwo InfoDesign GmbH http://www.merlin-zwo.de