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DBIx::Class::Storage::DBI::Replicated::Replicant(3)ed PerlBDocumentationorage::DBI::Replicated::Replicant(3)



NAME
       DBIx::Class::Storage::DBI::Replicated::Replicant - A replicated DBI Storage Role

SYNOPSIS
       This class is used internally by DBIx::Class::Storage::DBI::Replicated.

DESCRIPTION
       Replicants are DBI Storages that follow a master DBI Storage.  Typically this is accomplished via an
       external replication system.  Please see the documents for DBIx::Class::Storage::DBI::Replicated for
       more details.

       This class exists to define methods of a DBI Storage that only make sense when it's a classic 'slave'
       in a pool of slave databases which replicate from a given master database.

ATTRIBUTES
       This class defines the following attributes.

   active
       This is a boolean which allows you to programmatically activate or deactivate a replicant from the
       pool.  This way you can do stuff like disallow a replicant when it gets too far behind the master, if
       it stops replicating, etc.

       This attribute DOES NOT reflect a replicant's internal status, i.e. if it is properly replicating
       from a master and has not fallen too many seconds behind a reliability threshold.  For that, use
       "is_replicating"  and "lag_behind_master".  Since the implementation of those functions database
       specific (and not all DBIC supported DBs support replication) you should refer your database-specific
       storage driver for more information.

   master
       Reference to the master Storage.

METHODS
       This class defines the following methods.

   debugobj
       Override the debugobj method to redirect this method call back to the master.

ALSO SEE
       <http://en.wikipedia.org/wiki/Replicant>, DBIx::Class::Storage::DBI::Replicated

AUTHOR
       John Napiorkowski <john.napiorkowski@takkle.com>

LICENSE
       You may distribute this code under the same terms as Perl itself.



perl v5.12.5                                     2010-10-07Ix::Class::Storage::DBI::Replicated::Replicant(3)