On 14 June 2012 11:17, Jim - FooBar(); <jimpil1...@gmail.com> wrote: > On 14/06/12 06:38, Philip Potter wrote: >> >> >> Another reason the interface exists is for interoperability - if you want >> a java class to participate in the protocol, you do it by implementing the >> corresponding interface. >> >> Phil >> > > People suggested that I should not consume the interface produced by a > protocol definition from external sources (like a java class)...I think > someone suggested I should use definterface instead for that reason...
It depends what you're trying to achieve. You shouldn't use defprotocol if you are trying to create a java interface. You should just use definterface. Sometimes the abstraction you want really is a protocol and not an interface. Then you should use defprotocol. Then, if later you (or someone using your library) wants to write a Java class which participates in the protocol, they can implement the interface. Phil -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en
