Name
DBIx::Connector::Driver - Database-specific connection interface
Description
Some of the things that DBIx::Connector does are implemented differently by different drivers, or the official interface provided by the DBI may not be implemented for a particular driver. The driver-specific code therefore is encapsulated in this separate driver class.
Most of the DBI drivers work uniformly, so in most cases the implementation provided here in DBIx::Connector::Driver will work just fine. It's only when something is different that a driver subclass needs to be added. In such a case, the subclass's name is the same as the DBI driver. For example the driver for DBD::Pg is DBIx::Connector::Driver::Pg and the driver for DBD::mysql is DBIx::Connector::Driver::mysql.
If you're just a user of DBIx::Connector, you can ignore the driver classes. DBIx::Connector uses them internally to do its magic, so you needn't worry about them.
Interface
In case you need to implement a driver, here's the interface you can modify.
Constructor
new
my $driver = DBIx::Connector::Driver->new( $driver );Constructs and returns a driver object. Each driver class is implemented as a singleton, so the same driver object is always returned for the same driver. The driver parameter should be a Perl DBI driver name, such as Pg for DBD::Pg or SQLite for DBD::SQLite. If a subclass has been defined for $driver, then the object will be of that class. Otherwise it will be an instance of the driver base class.
Instance Methods
ping
$driver->ping($dbh);Calls $dbh->ping. Override if for some reason the DBI driver doesn't do it right.
begin_work
$driver->begin_work($dbh);Calls $dbh->begin_work. Override if for some reason the DBI driver doesn't do it right.
commit
$driver->commit($dbh);Calls $dbh->commit. Override if for some reason the DBI driver doesn't do it right.
rollback
$driver->rollback($dbh);Calls $dbh->rollback. Override if for some reason the DBI driver doesn't do it right.
savepoint
$driver->savepoint($dbh, $name);A no-op. Override if your database does in fact support savepoints. The driver subclass should create a savepoint with the given $name. See the implementations in DBIx::Connector::Driver::Pg and DBIx::Connector::Driver::Oracle for examples.
release
$driver->release($dbh, $name);A no-op. Override if your database does in fact support savepoints. The driver subclass should release the savepoint with the given $name. See the implementations in DBIx::Connector::Driver::Pg and DBIx::Connector::Driver::Oracle for examples.
rollback_to
$driver->rollback_to($dbh, $name);A no-op. Override if your database does in fact support savepoints. The driver subclass should rollback to the savepoint with the given $name. See the implementations in DBIx::Connector::Driver::Pg and DBIx::Connector::Driver::Oracle for examples.
Authors
This module was written and is maintained by:
It is based on code written by:
Copyright and License
Copyright (c) 2009-2013 David E. Wheeler. Some Rights Reserved.
This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.