Separating Data Access Concern

In our days most of the applications that have a relational database as storage, use an ORM to access the data. The ORM (Entity Framework, Hibernate, etc.) does most of the data access implementation. Many of them have a modern API for querying data and for creating sessions of editing

Disposable Instances Series

In the past few weeks I have published a set of four posts that deal with disposable instances. These posts describe in detail a working implementation that automatically disposes all the instances that are no longer needed, in a deterministic way. This solution works when we use Dependency Injection or

Disposing Instances when Using Inversion of Control

In the last few posts I have written about how to deal with IDisposable instances when using Dependency Injection. In the Who Disposes Your Repository I talk about the possibilities and challenges of disposing a repository which is injected. Then in the Extending Unity Container for IDisposable Instances (part 1

E-mail Course: Creating a Blog

I have enrolled in John’s Sonmez free e-mail course titled “How to Create a Blog That Boosts Your Career”. I’ve joined this because I wanted to focus more on improving my blog, and because I care about John’s advice on how to do this. I was already

Extending Unity Container for IDisposable Instances (2nd approach)

In my previous blog post I detailed an approach of making the Unity Dependency Injection Container ț̦o automatically call Dispose() on all the IDisposable instances it builds and injects. The implementation described there, makes use of custom lifetime managers and it works fine for most of the cases except

Extending Unity Container for IDisposable Instances (1st approach)

A few weeks ago, in my blog post ‘Who Disposes Your Repository’ I wrote about the challenges of implementing an IDisposable repository, which takes full advantage of the deferred execution of the IQueryable and, which is being injected through Dependency Injection (DI) into the classes that need to read or

Low Coupling by Refactoring Towards Higher Cohesion

Low coupling and high cohesion go hand in hand. In a low coupled design, the modules, classes and functions have a high cohesion. The other way around is also true: making high cohesive modules, classes or functions leads to a loosely coupled design. Why is this useful or interesting? The

Who Disposes Your Repository

Recently, I’ve went again through the discussion of how the Repository Pattern works with Dependency Injection (DI) in one of the projects I’m involved in. Even if these patterns are around for a while and there are many examples on how to use them together, discussing some particular

Unit Testing Training

Unit Testing has been one of the dearest technical subjects for me in the past years. A great influencer was a TDD Workshop lead by J. B. Rainsberger to which I was lucky enough to attend, somewhere in 2010. It was a very good fit with the moment of my

Why I Write Isolated Unit Tests

Most of the times when I talk about unit testing or I ask encourage my colleagues to write unit tests, I emphasis on writing GOOD Unit Tests which are easy to write, they test only one thing and they run in isolation. I always make a clear distinction between these

The Code Design Training

It was few months ago more than a year ago (22nd of February 2013 in my Trello card, Ideas column), when I came up with the thought of developing a training about how to write good code. At that time I was doing a lot of thinking about how to

IT Camp 14

Tomorrow the 4th edition of IT Camp, starts in Cluj-Napoca. It’s a good time to stop from day to day work and look towards the community to share and to learn from the other fellow developer’s experiences. This year I am going to add to the story of

IT Camp – A Great Experience

IT Camp happened at the end of this week in Cluj. I am proud that the town I am living in hosts the biggest premium conference on Microsoft technologies in Romania. It gathered almost 400 participants, from which a significant part were from other cities. My impression was that most

IT Camp 2013

I will speak this year to ITCamp conference on 23rd of May. When I have received the invitation (thanks Mihai and Tudy for inviting me) my first thought was whether I should talk about Unit Testing or something else. Then I started to wander why do I like to talk

Global Day of Code Retreat

On December the 8th, we had the Global Day of Code Retreat in Cluj-Napoca. We have joined the other 150 cities all over the world in a great global event. My first contact with a code retreat was almost a year ago when some friends from iQuest invited me to