xenoterracide

Moose Interface Pattern with parameter enforcement

2013-05-25T10:30:48-07:00

Moose interfaces are problematic, for 2 reasons. 1. They are compile time, but runtime features such as attribute delegation could provide the interface (role ordering is the real problem here) 2. They don't ensure anything other than the method name. I think this problem can be solved better by using around instead of requires Package Interface::Create; use Moose::Role; use Type::Params qw( compile ); use Types::Standard qw( slurpy HashRef); around create => sub { my...

...

Inversion of Control Principle

2013-01-03T18:00:04-08:00

If you're not familiar with the term "Inversion of Control"( IoC ) or "Dependency Injection" ( DI )you may wish to start with Martin Fowler's post on the subject. If you're looking for a way to do it with Perl, Bread::Board is the way to go. This post however is about the theory behind it, and a path to grokitude if you're finding the concepts challenging. I should advise that I am not yet a buddha on implementation. What is it? Now that you're familiar with an understanding of the terms...

...

Override DNS on a Linux system without root

2012-12-06T18:00:02-08:00

I had this problem for a long time, and no one ever proposed a good solution. Recently I got a new answer on my, almost 2 year old, Unix and Linux StackExchange question. This information seems very obscure and so I thought I'd share it, if you too have had this problem and were unable to find this, or at least found finding it hard, consider upvoting the answer. Problem You're using a Linux system that you don't have root on, you need to override the DNS of the system. You usually want to do...

...

Business::CyberSource API is stabilizing as of 0.7.x

2012-11-11T02:38:04-08:00

Business::CyberSource (BC) has been going through API changes for a while now. If you're using it you've probably noticed this and wondered why? The reason behind it was when I first made it I wanted it to be extremely simple to use, and I was realistically a Junior programmer. Over the past year I learned a lot about API design and Object Oriented Programming, as well as payment gateways and credit card transaction processing. From the first production ready release I knew that it had design...

...

Interface Driven Design

2013-05-25T10:30:35-07:00

What is Interface Driven Design? Interface Driven Design simply means that you should design your software around a flexible, easy to use, easy to understand interface. This is easy to achieve if your objects are of SOLID design. There is a simple table and reference link if you're not familiar with the principles. My Work is SOLID already Then you're on the right track but it's not enough if you don't fully marry the concept to best practices. I've seen quite a bit of work that's SOLID...

...