FAQ
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 caches

* A `defcache` macro for hooking your `CacheProtocol` 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](http://citeseer.ist.psu.edu/viewdoc/summary?doi=10.1.1.116.2184)
paper

* Factory functions for each existing cache type

Absorb
------

You can use core.cache in your
[Leiningen](https://github.com/technomancy/leiningen) and
[Cake](https://github.com/flatland/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](https://github.com/clojure/core.cache)
* [Ticket system](http://dev.clojure.org/jira/browse/CCACHE)
*
[Announcement](http://groups.google.com/group/clojure/browse_frm/thread/69d08572ab265dc7)
* [API Reference](https://clojure.github.com/core.cache)
* [Examples and documentation](https://github.com/clojure/core.cache/wiki)
(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.

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