It sounds like maybe you've already solved your problem, Shoeb, but just in case:
The book _Clojure in Action_ has a section on data mapping and data persistence using Redis. You can download the source code here: http://www.manning.com/rathore/source-code.zip (The relevant files are chapter12_redis_datamapper.clj and chapter12_redis_persistence.clj) M On Thu, Jan 5, 2012 at 11:32 AM, Shoeb Bhinderwala <shoeb.bhinderw...@gmail.com> wrote: > Hi Peter - > I looked at deep-freeze but did not quite understand how to use it. > I used the following to freeze my Clojure complex data structure - > results (map of list of maps) and persist to redis: > (redis/hmset k k (deep-freeze/freeze-to-array results)) > Then I tried to retrieve and thaw it as follows: > (deep-freeze/thaw-from-array (redis/hget k k)) > The thaw gives me the following exception: > java.lang.String cannot be cast to [B - (class > java.lang.ClassCastException) > What am I doing wrong? > ThanksShoeb > > On Jan 4, 10:55 am, Peter Taoussanis <ptaoussa...@gmail.com> wrote: >> read/pr-str works well, but it's painfully slow relative to something >> likeRedis. JSON libraries and the like would be faster, but might >> require more contortions if you're using lots of Clojure data types. >> My 2c: the best overall compromise atm is the Deep-Freeze >> serialization library (https://github.com/halgari/deep-freeze). It >> gets you very decent performance and great support for Clojure data >> types. >> >> You don't mention whatRedisclient you're using, but be aware that if >> you're going to be going the binary serialization route, you'll want >> to communicate withRedisvia byte[]s rather than JVM strings. If >> you're using Jedis, take a look at BinaryJedis. >> >> Hope that helps! >> >> --Peter > > -- > 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 -- 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
