Announcing core.cache version 0.6.1
core.cache v0.6.1 Release Notes
core.cache is a new Clojure contrib library providing the following features:
An underlying
CacheProtocol
used as the base abstraction for implementing new synchronous cachesA
defcache
macro for hooking yourCacheProtocol
implementations into the Clojure associative data capabilities.Immutable implementations of some basic caching strategies
- First-in-first-out (FIFOCache)
- Least-recently-used (LRUCache)
- Least-used (LUCache)
- Time-to-live (TTLCache)
- Soft-Reference cache (SoftCache)
- Naive cache (BasicCache)
Implementation of an efficient buffer replacement policy based on the low inter-reference recency set algorithm (LIRSCache) described in the LIRS paper
Factory functions for each existing cache type
Absorb
You can use core.cache in your Leiningen and Cake projects with the following :dependencies
directive in your project.clj
file:
[org.clojure/core.cache "0.6.1"]
For Maven-driven projects, use the following slice of XML in your pom.xml
‘s <dependencies>
section:
<dependency>
<groupId>org.clojure</groupId>
<artifactId>core.cache</artifactId>
<version>0.6.1</version>
</dependency>
Enjoy!
Places
- Source code
- Ticket system
- Announcement
- API Reference
- Examples and documentation (work in progress)
Changes from v0.5.0
The v0.6.1 version of core.cache contains the following changes:
The addition of a cache built on Java soft references
Bug fix for LRU and LU caches disabling the eviction of duplicate keys prior to threshold.
The factory function optional argument named
:limit
was changed to:threshold
.The default thresholds set by the factory functions were adjusted.
Plans
The following capabilities are under design, development, or consideration for future versions of core.cache:
- Make ClojureScript compatible
- Asynchronous caching protocol
- FunCache implementation
LIRSCache evict
- Hardening of the
seed
function implementations - test.generative usage
- Deprecation of Clache
- More documentation and examples
More planning is needed around capabilities not listed nor thought of.
Thanks
I would like to thank Paul Stadig for his work in fixing the SoftCache
implementation.
:F
One Comment, Comment or Ping
dimagog
LRUCache uses min-key when searching for eviction candidate. This is a linear scan, i.e. O(N) operation. This is only acceptable for small cache sizes.
Jul 13th, 2012
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