org.clojars.mmb90/cljs-cache

Port of clorjure/core.cache



Documentation

cljs.cache : Clojurescript port of clojure/core.cache

Clojars Project

  • An underlying CacheProtocol used as the base abstraction for implementing new synchronous caches

  • A defcache macro for hooking your CacheProtocol implementations into the Clojurescript associative data capabilities.

  • Implementations of some basic caching strategies

    • Least-recently-used (LRUCache)
    • Time-to-live (TTLCache)
    • Naive cache (BasicCache)
  • Factory functions for each existing cache type

Example Usage

    (require '[cljs.cache :as cache])

    (def C (cache/lru-cache-factory {:a 1, :b 2} :threshold 2))

    (if (cache/has? C :c)
      (cache/hit C :c)
      (cache/miss C :c 42))

    ;=> {:b 2, :c 42}

    (cache/evict C :b)

    ;=> {:a 1}

    (def C (cache/lru-cache-factory {:a 1, :b 2} :threshold 3))

    (if (cache/has? C :c)
      (cache/hit C :c)
      (cache/miss C :c 42))

    ;=> {:a 1, :b 2, :c 42}

    ;; Technically in order to see those results at the repl you'd have
    ;; to use .-cache but I left it off for clarity since that's what's
    ;; in the cache.

    (.-cache (cache/evict C :b))

    ;=> {:a 1}

Refer to docstrings in the clojure.core.cache namespace, or the autogenerated API documentation for additional documentation

License

Copyright (c) Rich Hickey. All rights reserved. The use and
distribution terms for this software are covered by the Eclipse
Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
which can be found in the file epl-v10.html at the root of this
distribution. By using this software in any fashion, you are
agreeing to be bound by the terms of this license. You must
not remove this notice, or any other, from this software.