Le mardi 12 août 2014, MS <5lvqbw...@sneakemail.com> a écrit : > Thanks, I figure now in 2014 disk space is not a big deal, and any two > sequences of text will compress to something really small, so saving disk > space is not a compelling reason for reference data. There was in fact a > decent reason I wanted these to reference the same object, but of course I > can't think of what that was now. It'll return to me when I'm half asleep. >
Maybe you want to save memory by not having unnecessary duplicates created? > > > On Monday, August 11, 2014 7:49:51 AM UTC-7, James Reeves wrote: >> >> If your purpose is just to save disk space, then I'd suggest just using >> compression. Two identical data types should produce the same sequence of >> bytes, which are easily compressed. I believe Nippy has a fast compression >> via Snappy enabled by default. >> >> - James >> >> >> On 10 August 2014 19:36, MS <5lvq...@sneakemail.com> wrote: >> >>> I'm trying to write an EE schematic capture program in clojure. I'd >>> like to be able to define a prototype component, say a resistor with >>> value=10k, then be able to instantiate that many times, with each instance >>> having an additional property such as a name string. It's easy to ensure >>> (identical? >>> (proto instance1) (proto instance2)) returns true while in-memory, >>> however I'm not sure how to write this out to disk. >>> >>> It seems the serialization libraries, print-dup, edn, etc., operate on >>> values, so reading the database back in won't guarantee it's really the >>> same object. I'd like to have the thing defined *once* then instantiated >>> many times, and have this captured in the on-disk version. >>> >>> Am I barking up the wrong tree? ie, given immutable data structures, >>> there's kind of no point in doing this. I'm actually trying to save disk >>> space, so I'd like to be able to refer in a few characters a potentially >>> large structure that was defined earlier. It would also be nice to have >>> this be human readable. >>> >>> Would one of the JSON serializers do this for me? >>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Clojure" group. >>> To post to this group, send email to clo...@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+u...@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 unsubscribe from this group and stop receiving emails from it, send >>> an email to clojure+u...@googlegroups.com. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> > -- > 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 > <javascript:_e(%7B%7D,'cvml','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 > <javascript:_e(%7B%7D,'cvml','clojure%2bunsubscr...@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 unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com > <javascript:_e(%7B%7D,'cvml','clojure%2bunsubscr...@googlegroups.com');>. > For more options, visit https://groups.google.com/d/optout. > -- Laurent Petit -- 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 unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
