clj-refresh-cache

A new ttl-style cache for core-cache that will return expired values on lookup. good if you want to represent a value that changes every 'x' seconds.

Usage

Lein

  [clj-refresh-cache "0.1.0-SNAPSHOT"]

    (defn really-expensive [] ...)
    ;;the refreshing function will return an identity that can be de-referenced in the usual way.
    (def every-second (refreshing really-expensive 1000))

    ;;deref as so
    @every-second

    ;;you can also use the function form
    (def memoized (memoize-refreshing really-expensive 1000))
    ;;call as so
    (memoized)

    ;;alternatively you can use a full core.cache factory
    ;;which will give you a regular CacheProtocol implementation.
    (refresh-cache-factory {:a 100} :ttl 1000)

License

Copyright © 2014 Dan Stone

Distributed under the Eclipse Public License, the same as Clojure.