| Package::New(3pm) | User Contributed Perl Documentation | Package::New(3pm) |
Package::New - Simple base package from which to inherit
package My::Package;
use base qw{Package::New}; #provides new and initialize
The Package::New object provides a consistent constructor for objects.
I find that I always need these two methods in every package that I build. I plan to use this package as the base for all of my CPAN packages.
I recommend that you have sane default for all of your object properties. I recommend using code like this.
sub myproperty {
my $self=shift;
$self->{"myproperty"}=shift if @_;
$self->{"myproperty"}="Default Value" unless defined $self->{"myproperty"};
return $self->{"myproperty"};
}
I recommend to always use strict, warnings and our version.
package My::Package;
use base qw{Package::New};
use strict;
use warnings;
our $VERSION='0.01';
I recommend Lazy Loading where you can.
sub mymethod {
my $self=shift;
$self->load unless $self->loaded;
return $self->{"mymethod"};
}
my $obj = Package::New->new(key=>$value, ...);
You can override this method in your package if you need to do something after construction. But, lazy loading may be a better option.
Log on RT and contact the author.
DavisNetworks.com provides support services for all Perl applications including this package.
Michael R. Davis CPAN ID: MRDVT DavisNetworks.com http://www.DavisNetworks.com/
This program is free software licensed under the...
The BSD License
The full text of the license can be found in the LICENSE file included with this module.
base, parent
Package::Base, Class::Base, Class::Easy, Object::Tiny, Badger::Base
VSO, Class::Accessor::Fast, Class::Accessor, Moose, (as well as Moose-alikes Moo, Mouse), Class::MethodMaker, Class::Meta
Spiffy, mixin, SUPER, Class::Trait, Class::C3, Moose::Role
| 2020-02-22 | perl v5.30.0 |