jifty::dbi::record::memcached(3pm) [debian man page]

Jifty::DBI::Record::Memcached(3pm)			User Contributed Perl Documentation			Jifty::DBI::Record::Memcached(3pm)

NAME

       Jifty::DBI::Record::Memcached - records with caching behavior

SYNOPSIS

	 package Myrecord;
	 use base qw/Jifty::DBI::Record::Memcached/;

DESCRIPTION

       This module subclasses the main Jifty::DBI::Record package to add a caching layer.

       The public interface remains the same, except that records which have been loaded in the last few seconds may be reused by subsequent get
       or load methods without retrieving them from the database.

METHODS

   load_from_hash
       Overrides the implementation from Jifty::DBI::Record to add support for caching.

   load_by_cols
       Overrides the implementation from Jifty::DBI::Record to add support for caching.

   _cache_config
       You can override this method to change the duration of the caching from the default of 5 seconds.

       For example, to cache records for up to 30 seconds, add the following method to your class:

	 sub _cache_config {
	     { 'cache_for_sec' => 30 }
	 }

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

	 (
	     services => [ '127.0.0.1:11211' ],
	     debug    => 0,
	 )

       You may want to override this method if you want a customized cache configuration:

	 sub memcached_config {
	     (
		 servers => [ '10.0.0.15:11211', '10.0.0.15:11212',
			      '10.0.0.17:11211', [ '10.0.0.17:11211', 3 ] ],
		 debug	 => 0,
		 compress_threshold => 10_000,
	     );
	 }

   cache_key_prefix
       Returns the prefix we should prepend to all cache keys. If you're using one memcached for multiple applications, you want this to be
       different for each application or they might end up mingling data.

AUTHOR

       Matt Knopp <mhat@netlag.com>

SEE ALSO

       Jifty::DBI, Jifty::DBI::Record

perl v5.14.2							    2010-09-21					Jifty::DBI::Record::Memcached(3pm)

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)