On Wednesday, 4 February 2015 19:36:58 UTC+5:30, tbc++ wrote: > > Most of the time, if you are using a component like system, you'll also > want some level of polymorphism as well. This is what the defrecord > approach enables, it not only provides dependency injection, but also > provides a type that calls to that component can dispatch against. In > testing it's then quite easy to swap out a component with a mock component, > that's something that's pretty hard to do with just functions. >
True. With Prismatic graph, one needs to build one dependency-graph per profile (i.e. prod, each test suite etc.) though the test profiles (where one wants mock impl) may require much smaller graphs depending on the scope. Shantanu > > Timothy > > On Wed, Feb 4, 2015 at 6:42 AM, Shantanu Kumar <kumar.s...@gmail.com > <javascript:>> wrote: > >> >> >> On Wednesday, 4 February 2015 18:26:43 UTC+5:30, Lucas Bradstreet wrote: >>> >>> Component is more for managing state, whereas graph is for structuring >>> computation. All I can really tell you is that after using component I am >>> never going back (at least in Clojure). >>> >> >> With Prismatic graph you can structure a hierarchy of functions that >> initialize parts of app and return functions/protocol implementations, thus >> using it like a dependency injection mechanism. The advantage is you don't >> have to pass a giant map around in the app, avoiding runtime overhead. The >> downside is, this style makes REPL-driven development more challenging. >> >> Shantanu >> >> -- >> 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 >> <javascript:> >> 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 <javascript:> >> 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 <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > “One of the main causes of the fall of the Roman Empire was that–lacking > zero–they had no way to indicate successful termination of their C > programs.” > (Robert Firth) > -- 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.
