jifty::cas::store::memcached(3pm) [debian man page]

Jifty::CAS::Store::Memcached(3pm)			User Contributed Perl Documentation			 Jifty::CAS::Store::Memcached(3pm)

NAME

       Jifty::CAS::Store::Memcached - A memcached backend for Jifty's Content-Addressable Storage facility

SYNOPSIS

       At the bare minimum, add the following to your Jifty config.yml:

	   framework:
	     CAS:
	       BaseClass: 'Jifty::CAS::Store::Memcached'

       The options available include:

	   framework:
	     CAS:
	       BaseClass: 'Jifty::CAS::Store::Memcached'
	       Memcached:
		 # any options Cache::Memcached supports
		 servers:
		   - 10.0.0.2:11211
		   - 10.0.0.3:11211
		 compress_threshold: 5120

	       # Turned on by default. Keeps CAS working when memcached fails by
	       # falling back to the default in-process store. It probably should
	       # be turned off in most cases (like so) after successful testing.
	       MemcachedFallback: 0

DESCRIPTION

       This is a memcached backend for Jifty::CAS.  For more information about Jifty's CAS, see "DESCRIPTION" in Jifty::CAS.

METHODS

   memcached
       Returns the Cache::Memcached object for this class.

   _store DOMAIN NAME BLOB
       Stores the BLOB (a Jifty::CAS::Blob) in memcached.  Returns the key on success or undef on failure.

   key DOMAIN NAME
       Returns the most recent key for the given pair of "DOMAIN" and "NAME", or undef if none such exists.

   retrieve DOMAIN KEY
       Returns a Jifty::CAS::Blob for the given pair of "DOMAIN" and "KEY", or undef if none such exists.

   memcached_config
       Returns a hashref containing arguments to pass to Cache::Memcached during construction. The defaults are like:

	 {
	     servers	 => [ '127.0.0.1:11211' ],
	     debug	 => 0,
	     namespace	 => Jifty->config->framework('ApplicationName'),
	     compress_threshold => 10240,
	 }

       To change these options, set them in your Jifty application config file under "/framework/CAS/Memcached" like so:

	   framework:
	     CAS:
	       BaseClass: 'Jifty::CAS::Store::Memcached'
	       Memcached:
		   servers:
		       - 10.0.0.2:11211
		       - 10.0.0.3:11211
		   compress_threshold: 5120

   memcached_fallback
       Returns a boolean (from the config file) indicating whether or not memcached should fallback to the per-process, in-memory store.

perl v5.14.2							    2010-12-08					 Jifty::CAS::Store::Memcached(3pm)

Data::ObjectDriver::Driver::Cache::Memcached(3pm)	User Contributed Perl Documentation	 Data::ObjectDriver::Driver::Cache::Memcached(3pm)

NAME

       Data::ObjectDriver::Driver::Cache::Memcached - object driver for caching objects with memcached

SYNOPSIS

	   package MyObject;
	   use base qw( Data::ObjectDriver::BaseObject );

	   __PACKAGE__->install_properties({
	       ...
	       driver => Data::ObjectDriver::Driver::Cache::Memcached->new(
		   cache    => Cache::Memcached->new({ servers => @MEMCACHED_SERVERS }),
		   fallback => Data::ObjectDriver::Driver::DBI->new( @$DBI_INFO ),
	       ),
	       ...
	   });

	   1;

DESCRIPTION

       Data::ObjectDriver::Driver::Cache::Memcached provides automatic caching of retrieved objects in your memcached servers, when used in
       conjunction with your actual object driver.

USAGE

       o   Data::ObjectDriver::Driver::Cache::Memcached->new( %params )

	   Required members of %params are:

	   o   "cache"

	       The "Cache::Memcached" instance representing your pool of memcached servers.  See Cache::Memcached.

	   o   "fallback"

	       The "Data::ObjectDriver" object driver from which to request objects that are not found in your memcached servers.

DIAGNOSTICS

       The memcached driver provides integration with the "Data::ObjectDriver" debug and profiling systems. As these systems are designed around
       SQL queries, synthetic queries are logged to represent memcached operations. The operations generated by this driver are:

       o   "MEMCACHED_ADD ?"

	   Put an item in the cache that was not there. The arguments are the cache key for the object and the flattened representation of the
	   object to cache.

       o   "MEMCACHED_SET ?"

	   Put an item in the cache with new member data. The arguments are the cache key for the object and the flattened representation of the
	   object to cache.

       o   "MEMCACHED_DELETE ?"

	   Remove an object from the cache. The argument is the cache key for the object to invalidate.

       o   "MEMCACHED_GET ?"

	   Retrieve an object. The argument is the cache key for the requested object.

       o   "MEMCACHED_GET_MULTI ?"

	   Retrieve a set of objects. The arguments are the cache keys for the requested objects.

SEE ALSO

       "Cache::Memcached", http://www.danga.com/memcached/

LICENSE

       Data::ObjectDriver is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

AUTHOR &; COPYRIGHT
       Except where otherwise noted, Data::ObjectDriver is Copyright 2005-2006 Six Apart, cpan@sixapart.com. All rights reserved.

perl v5.12.4							    2011-08-29			 Data::ObjectDriver::Driver::Cache::Memcached(3pm)