If you don't want to write the accessors yourself as in dragonchild's example, you can use Class::Data::Inheritable, which lets you declare and override class variables on a per-class and even per-object basis.

package abstracted;
use base qw(Class::Data::Inheritable);

# Set up DataFile as inheritable class data.
__PACKAGE__->mk_classdata('name');
__PACKAGE__->name('I call myself the abstracted class');

package abstracted::versionA;
use base 'abstracted';
__PACKAGE__->name('vA');

package abstracted::versionB;
use base 'abstracted';
__PACKAGE__->name('vB');

[download]

If you want to override the name of abstracted::versionA, you can also call the accessor at runtime.

In reply to Re: Accessing class/subclass variables by Corion
in thread Accessing class/subclass variables by nmerriweather

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