Ok thanks for the answer :) I have now began to implement the Java parts. The data that is going to be processed in Clojure is mapped to clojure structs, but I now have another question. How should I update the values in the structs? Since functions are going to run in parallel and a function may need the updated value from another function I though that I should put the struct members that is going to be updated in refs or maybe atoms. Is this a good way or how should I manage the updated values in structs?
Thanks :) On Oct 26, 4:11 pm, Shantanu Kumar <kumar.shant...@gmail.com> wrote: > You can probably settle for a set ofJavadata structures that are > inter-operable withClojure. > > 1. Use interfaces (becauseClojureimplements them too) such > asjava.util.List,java.util.Set,java.util.Map etc. > 2. Use type hints and enable "warn on reflection". > 3. When inClojure, first convert toClojuredata structure before > doing any processing. > 4. Try to minimize the cross-section surface area that connects > theJavaandClojureparts and keep it clean. > > This may not answer all of your questions (such as concurrency), but I > coded something inJava+Clojure, and the result I guess is pretty > good. URL below: > > Taimen --http://code.google.com/p/bitumenframework/ > > Regards, > Shantanu > > On Oct 26, 12:55 pm, vanallan <vanal...@gmail.com> wrote: > > > Hi > > thanks for the replies :) > > The whole system consists of a couple of hundreds of thousands lines > > ofJavacode. The part i am investigating is a validation sub system > > that validates a number of input parameters given from the user > > against various predefined values and rules, and against databases and > > such. These methods don't just validate the input, they also set up a > > couple of objects based on the input given. > > > I want these methods to run its own task in parallel, but sequential > > to the rest of the system. The reason i am doing this is to see if > > there is some improvements in performance and to see if it is possible > > at all to implement parts of abigsystem in a functional language. > > The same object is sent as an argument to all methods, and this object > > consist of a lot of other objects. > > > On Oct 24, 5:54 pm, eyeris <drewpvo...@gmail.com> wrote: > > > > It's difficult to provide advice without more information about your > > > current code. You say that you want a part of your system, which > > > manipulates a lot of objects, to run in parallel. Do you mean that you > > > want this part of the system to run parallel to the other parts -or- > > > do you mean that this part will remain in sequence with the other > > > parts of the system, but it will run its own tasks in parallel? > > > Furthermore, what do you expect to gain from the parallelism? If it's > > > simple divide-and-conquer parallelism to process a chunk of data > > > faster, then that is pretty easy to implement inJava, so long as the > > > data is dividable. On the other hand, if you want this part of your > > > system to run in parallel with the other parts, then there's a wide > > > spectrum ofClojure/Javamixes that could make sense. Like I said > > > above, we'll need much more information before we can provide any > > > valuable advice. > > > > On Oct 23, 7:41 am, vanallan <vanal...@gmail.com> wrote: > > > > > Hi! > > > > I am currently investigating if it is possible to convert a part of a > > > >bigJavasystem toClojure. The reason for this is to make this part > > > > run in parallel and hence ease the implementation by porting it to > > > >Clojure. The problem is that these parts of the system is today > > > > setting and changing a lot mutable data in a lot of different objects. > > > > > Which approach do you think i should have when i try to port these > > > >Javamethods? Should i try to retain theJavastructure and change > > > > these objects or is it better to create my own data structure and > > > > somehow manage them? Does anyone have any experience in integrating > > > >Clojurein abigJavasolution? Also i should mention that i'm quite > > > > new toClojure, and functional programming overall. :) > > > > > Thanks > > --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
