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[[extension-cache-memcache, Memcache Cache]]
= Memcache Cache =

[devstatus]
--------------
source=extensions/cache-memcache/dev-status.xml
--------------


EntityStore cache backed by a Memcache server like http://memcached.org/[Memcached].

Memcached is an in-memory key-value store for small chunks of arbitrary data.
By default, entities serialized state must not exceed 1MB.

Other implementations such as https://www.memcachier.com/[MemCachier] have different peculiarities,
see their documentation.


include::../../build/docs/buildinfo/artifact.txt[]

Not all EntityStore implementations use the Cache extension, so check the implementation details of the
EntityStore whether the cache extension can bring any benefits or not.


== Assembly ==

Assembly is done using the +MemcacheAssembler+:

[snippet,java]
----
source=extensions/cache-memcache/src/test/java/org/apache/polygene/cache/memcache/MemcacheCachePoolTest.java
tag=assembly
----


== Configuration ==

Here are the configuration properties for the Memcache EntityStore Cache:

[snippet,java]
----
source=extensions/cache-memcache/src/main/java/org/apache/polygene/cache/memcache/MemcacheConfiguration.java
tag=config
----

As you can see both ASCII and binary flavours of the Memcache protocol are supported as well as SASL authentication.