0
votes
1answer
97 views

How does dependency inversion principle work in languages without interfaces?

In C#/Java, the dependency inversion principle is often demonstrated by high-level classes that depends on an interface/abstraction (that it owns). Low-level classes will implement the interface, thus ...
2
votes
1answer
113 views

Attempt at understanding the double-dispatch pattern

I've been trying to grok the double-dispatch pattern and having a hard time. I finally attempted a sample program to help myself understand. Here's the gist. But then I decided to attempt it without ...
0
votes
1answer
69 views

Online stores service design

I am designing an online store service app with rails. Everyone who wants to make his/her own store can do it with this app by just signing up and choosing a domain. I want to make it as SaaS as it ...
20
votes
6answers
864 views

How to avoid giant glue methods?

In my current job, I've been tasked with cleaning up old code a few times. Often the code is a labyrinth and the data behind it is even more tangled. I find myself combing out things into nice, ...
2
votes
1answer
112 views

Does it make sense to create a Ruby wrapper to reference a Java object that does exactly the same thing?

I am using JRuby. In my Java code, I have a class called Texture, capable of doing some graphic manipulation stuff. In my Ruby code, I will usually need to draw things, so though I should simply ...
6
votes
2answers
397 views

Do Ruby (and other dynamic language) programmers use IoC / Dependency Injection?

I'm primarily an ASP.NET developer and the single thing i've been introduced to in recent years that has had the most dramatic impact on the quality of the code I write has learning how to use IoC ...