NAME¶
Rose::DB::Object::ConventionManager::Null - A singleton convention manager that
does nothing.
SYNOPSIS¶
package My::Product;
use Rose::DB::Object;
our @ISA = qw(Rose::DB::Object);
# This really sets the convention manager to a
# Rose::DB::Object::ConventionManager::Null object
__PACKAGE__->meta->convention_manager(undef);
...
DESCRIPTION¶
Rose::DB::Object::ConventionManager::Null is a subclass of
Rose::DB::Object::ConventionManager that does nothing. That is, it overrides
every method with no-ops that always return undef or an empty list, depending
on calling context. This class is a singleton.
When a piece of metadata is missing, the convention manager is asked to provide
it. This "null" convention manager class is useful if you do not
want the convention manager to provide any information. In other words, use
this convention manager class if you want to force all metadata to be
explicitly specified.
See the Rose::DB::Object::ConventionManager documentation for more information
on convention managers.
AUTHOR¶
John C. Siracusa (siracusa@gmail.com)
LICENSE¶
Copyright (c) 2010 by John C. Siracusa. All rights reserved. This program is
free software; you can redistribute it and/or modify it under the same terms
as Perl itself.