DBIx::Class::Storage::DBI::Replicated::Replicant - A replicated DBI Storage Role
This class is used internally by DBIx::Class::Storage::DBI::Replicated.
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.
This class defines the following attributes.
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" in DBIx::Class::Storage::DBI::Replicated and
"lag_behind_master" in DBIx::Class::Storage::DBI::Replicated.
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.
Reference to the master Storage.
This class defines the following methods.
Override the debugobj method to redirect this method call back to the master.
<http://en.wikipedia.org/wiki/Replicant>,
DBIx::Class::Storage::DBI::Replicated
Check the list of additional DBIC resources.
This module is free software copyright by the DBIx::Class (DBIC) authors. You
can redistribute it and/or modify it under the same terms as the DBIx::Class
library.