Comments for Claudio Lassala's Blog

Comment on A Good Example of Liskov Substitution Principle by claudiolassala

claudiolassala — Thu, 04 Apr 2013 23:42:39 +0000

Glad my post helped you!

Comment on A Good Example of Liskov Substitution Principle by Joao Paulo Lindgren

Joao Paulo Lindgren — Wed, 03 Apr 2013 17:20:47 +0000

Excellent post! I was in trouble to understand Liskov Principle, your example open my mind!
thx!

Comment on A Good Example of Liskov Substitution Principle by claudiolassala

claudiolassala — Sun, 17 Mar 2013 17:40:57 +0000

I believe it broke Liskov when SaveAll needed the following:

if (r is SpecialSettings)
return;

In that case, IPersistedResource wasn’t substitutable by a derived class (here, the SpecialSettings class), as calling SaveAll without checking whether we were dealing with SpecialSettings would cause the code to break.

Comment on A Good Example of Liskov Substitution Principle by Andy

Andy — Tue, 12 Mar 2013 14:05:07 +0000

It didn’t break Liskov, it broke Interface Segregation Principle or “Don’t make me implement it” as you later identified. Liskov is not about Interfaces, it is about a base class being substitutable by a derived class without causing unexpected behaviour.

Comment on A Good Example of Liskov Substitution Principle by Govindan

Govindan — Tue, 12 Feb 2013 14:42:06 +0000

Nice post!

Comment on iPhone Development with MonoTouch, by Michael Koby by CraigGaines

CraigGaines — Thu, 07 Feb 2013 10:41:25 +0000

Mono is a free and open source project led by Xamarin to make an Ecma standard compliant .NET Framework-compatible set of tools including, among others, a C# compiler and a Common Language Runtime. MonoTouch allows developers to create C# and .NET based applications that run on the iPhone.

Comment on A Good Example of Liskov Substitution Principle by claudiolassala

claudiolassala — Wed, 09 Jan 2013 16:56:29 +0000

In my case there was no need to manage two different lists; adding/removing items was something done in a single spot, and nobody was supposed to deal with those lists directly, that’s why I only passed IEnumerable around.

Comment on A Good Example of Liskov Substitution Principle by Deepak

Deepak — Wed, 09 Jan 2013 14:20:11 +0000

Good example.Thanks ,But one query-> this leads to use 2 different Lists to be managed right? And add or delete function from the list will bring in more complexity of updating 2 different list at a time

Comment on The Class Designer in Visual Studio: close to useless? by Al

Al — Mon, 26 Mar 2012 05:05:07 +0000

I think it is as close to useless as it is possible to be. Visio is better but still terrible.

Comment on What people who switched to Ruby from .NET have to say by claudiolassala

claudiolassala — Fri, 16 Mar 2012 03:09:58 +0000

I’ve made the full switch to RoR almost a year ago. Like you, I thought I should stick with ASP.NET MVC and C#, thinking I’d be more productive there. But ended up sticking with RoR, and I’m so glad I did. I was able to get productive with it real fast, even though I knew zero Ruby and zero Rails, and had been out of web development for several years. I’m enjoying RoR and whole mindset a lot! Don’t really miss anything from the .net days.