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programming

A collection of 73 posts

Ruby On Pains

Have you ever heard about the Rails way? I would like to introduce some pains that I've seen and keep seeing in all the Rails projects due to the Rails way... ActiveRecord How many times do we need to find an object in a Rails project? How many

Learning Programming

Learning Programming

Dealing with failure and frustration I’ve recently finished my apprenticeship program here at 10Pines. The experience was way beyond my expectations. Really. I’ve learned much more than I expected. In order to show some of my experience during my time here, I was asked to write a post

Caring about coding

Caring about coding

The Broken Window Theory states that how much people care about something is an important factor in how much you care about the same thing. Can it be applied to our code?

Organizational Debt and The Romantic Dev

Organizational Debt and The Romantic Dev

Introduction While thinking what I could write about, I remembered a distant sunny afternoon, back at the beginning of my professional experience. I left writings about what is now a possible future post and began to write these words... In my early days on one of the first companies that

How to gently upgrade your Java application

How to gently upgrade your Java application

When I think about getting an upgrade I usually picture myself like this: But… as the time passes… I feel like Homer applying for the university, something like: Since in 10Pines we reached a successful migration I want to share with you our experience on the road. Also, I want

Java Interface Default Methods. What?

metaprogramming

Java Interface Default Methods. What?

In my last post I've presented both traits and mixins, with the promise of identifying the Java 8 Interface Default Methods. So, let's get on it. First of all, if you don’t know what I’m talking about, read my previous post -and please ignore

Essence-driven Development

Essence-driven Development

Something that has always seemed motivating is the feeling that my way of doing things generally maintained good adaptability. Throughout my years of study at the University, and later in 10pines, I realized the type of programmer who I want to be. Many aim to learn Object-Oriented Programming, Functional Programming,

Java generics and inheritance (part 2)

Java generics and inheritance (part 2)

Learn more about java generics and inheritance with Dario!

Java generics and inheritance (part 1)

Java generics and inheritance (part 1)

Learn about java generics and inheritance with Dario!

Trust in objects. They have the right to decide.

object design Featured

Trust in objects. They have the right to decide.

"Real devs don't use if". Why would somebody want to eliminate the if clause? What's wrong about it? Here I tell you why and an example on how to do it.

metaprogramming

Mixins or Traits? That is the Question

A couple of days ago, a discussion came up in an uqbar foundation[1] mailing list about the Java 8 Interfaces Default Methods. They were named as «mixins», but I corrected them and called «traits without flattening». After sending the mail, that last sentence kept ringing in my head, so

Symbols: the new return codes? (Pt. 2)

Symbols: the new return codes? (Pt. 2)

Flow control with exceptions and closures In this previous post we've considered the benefits and inconveniences of using nil and symbols as return values in a method. Now we’ll evaluate the possibility of throwing an exception, and yet another alternative: using a closure. So, before jumping in,

Two ways we understand code: Unitary vs Integral understanding

Two ways we understand code: Unitary vs Integral understanding

There is an often unresolved question in software about comments and documentation. It is said that code should be "self-documenting", thus comments can be a sign of a lack of clarity in the code.

Is Java Dead?

The answer is: of course not!!, but now that I got your attention surely due to the title that mimics the lately hot "Is TDD Dead?" discussion started by @dhh, I would like to concentrate on the real objective of this post that I think it is really

Rock Your Ruby: The Value of Value

Rock Your Ruby: The Value of Value

Go ahead and ask the developer sitting next to you what is the thing that loves the most about Ruby. It should come as no surprise that simplicity, flexibility and expressiveness are the main reasons Ruby junkies just can't get enough of it.

Refactoring legacy code story

software design

Refactoring legacy code story

Is the following story familiar? A client knocks to your door, asking for help with a software developed by another vendor. He complains about developers always being late to deadlines and every time a new version is delivered there are plenty of things that are not working properly.

Collecting Collections - Day 37

Collecting Collections - Day 37

Learn more and more about collections with Dario!

Collecting Collections - Day 32

Collecting Collections - Day 32

Learn more about collections with Dario!

Collecting Collections - Day 20

Collecting Collections - Day 20

Learn about collections with Dario!

Parallel tests on Travis

Parallel tests on Travis

Since the last post, a lot of things happened: some things were fixed, some tests got faster and I learned that some aspects of JRuby are just slow (for now). First of all, the author of parallel_tests was very kind to not only accept my pull requests, but to

Parallel tests for JRuby

Parallel tests for JRuby

Recently, we've been porting one of our projects from Ruby 1.9.3 (MRI) to JRuby 1.7.3. There was a fair amount of work involved, mainly about Ruby gems and (in)compatibility with C extensions (which JRuby dropped support), but that will be left for another

Benefits of agile software development

Benefits of agile software development

Incremental deployment: minimize time-to-market Since agile processes deliver working software at the end of each iteration (typically around 1-4 weeks) and requirements are prioritized by business value, the organization might choose to release a version of the product as soon as a Minimum Marketable Feature (MMF) has been completed. This

About inheritance as means of reuse

About inheritance as means of reuse

When talking about Smalltalk, there is definitively an over use on the possibility to add messages to Object class. It is so easy to do it, that people usually do it just to get something working fast, even if the coding is poor. There are a lot of messages (mainly