Class::Workflow::Transition - A function over an instance. |
Class::Workflow::Transition - A function over an instance.
package MyTransition; use Moose; with 'Class::Workflow::Transition';
This is the base role for transition implementations.
every transition object must comply to it's interface, and furthermore must
also use the derive_and_accept_instance
method to return a derived instance
at the end of the operation.
$instance->derive
with the attrs, and then calls the
instance accept_instance
on the new instance's state.
%attrs
must contain the key state
, which should do the role
the Class::Workflow::State manpage.
@args are passed (along with the derived instance) to accept_instance in the Class::Workflow::State manpage.
$self->derive_and_accept_instance( $instance, \%attrs, @args )
, with
%attrs
containing the state that the instance is being transferred to (it
doesn't have to be different than the current state).
Class::Workflow::Transition - A function over an instance. |