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.\"
.IX Title "Jifty::CAS::Store::Memcached 3pm"
.TH Jifty::CAS::Store::Memcached 3pm "2010-12-08" "perl v5.14.2" "User Contributed Perl Documentation"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH "NAME"
Jifty::CAS::Store::Memcached \- A memcached backend for Jifty's
Content\-Addressable Storage facility
.SH "SYNOPSIS"
.IX Header "SYNOPSIS"
At the bare minimum, add the following to your Jifty config.yml:
.PP
.Vb 3
\&    framework:
\&      CAS:
\&        BaseClass: \*(AqJifty::CAS::Store::Memcached\*(Aq
.Ve
.PP
The options available include:
.PP
.Vb 9
\&    framework:
\&      CAS:
\&        BaseClass: \*(AqJifty::CAS::Store::Memcached\*(Aq
\&        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
.Ve
.SH "DESCRIPTION"
.IX Header "DESCRIPTION"
This is a memcached backend for Jifty::CAS.  For more information about
Jifty's \s-1CAS\s0, see \*(L"\s-1DESCRIPTION\s0\*(R" in Jifty::CAS.
.SH "METHODS"
.IX Header "METHODS"
.SS "memcached"
.IX Subsection "memcached"
Returns the Cache::Memcached object for this class.
.SS "_store \s-1DOMAIN\s0 \s-1NAME\s0 \s-1BLOB\s0"
.IX Subsection "_store DOMAIN NAME BLOB"
Stores the \s-1BLOB\s0 (a Jifty::CAS::Blob) in memcached.  Returns the key on
success or undef on failure.
.SS "key \s-1DOMAIN\s0 \s-1NAME\s0"
.IX Subsection "key DOMAIN NAME"
Returns the most recent key for the given pair of \f(CW\*(C`DOMAIN\*(C'\fR and
\&\f(CW\*(C`NAME\*(C'\fR, or undef if none such exists.
.SS "retrieve \s-1DOMAIN\s0 \s-1KEY\s0"
.IX Subsection "retrieve DOMAIN KEY"
Returns a Jifty::CAS::Blob for the given pair of \f(CW\*(C`DOMAIN\*(C'\fR and
\&\f(CW\*(C`KEY\*(C'\fR, or undef if none such exists.
.SS "memcached_config"
.IX Subsection "memcached_config"
Returns a hashref containing arguments to pass to Cache::Memcached during
construction. The defaults are like:
.PP
.Vb 6
\&  {
\&      servers     => [ \*(Aq127.0.0.1:11211\*(Aq ],
\&      debug       => 0,
\&      namespace   => Jifty\->config\->framework(\*(AqApplicationName\*(Aq),
\&      compress_threshold => 10240,
\&  }
.Ve
.PP
To change these options, set them in your Jifty application config file under
\&\f(CW\*(C`/framework/CAS/Memcached\*(C'\fR like so:
.PP
.Vb 8
\&    framework:
\&      CAS:
\&        BaseClass: \*(AqJifty::CAS::Store::Memcached\*(Aq
\&        Memcached:
\&            servers:
\&                \- 10.0.0.2:11211
\&                \- 10.0.0.3:11211
\&            compress_threshold: 5120
.Ve
.SS "memcached_fallback"
.IX Subsection "memcached_fallback"
Returns a boolean (from the config file) indicating whether or not memcached
should fallback to the per-process, in-memory store.