Rinat Abdullin

Generator pattern in C# .NET

Rinat Abdullin — Sat, 19 Jul 2008 06:37:58 +0000

Boo language has nice code pattern called Generator: // Generator expressions are defined through the pattern: <expression> for <declarations> in <iterator> [if|unless <condition>] // Generator expressions can be used as return values: def GetCompletedTasks(): return t for t in _tasks if t.IsCompleted // Generator expressions can be stored in variables: oddNumbers = i for i in [...]

Linq queries with parameters for your ORM IRepository

Rinat Abdullin — Fri, 18 Jul 2008 06:28:53 +0000

Ricardo Cavalcanti has raised question on fluent passing of parameters into the queries encapsulated by the QueryFor (specification) pattern. Let’s talk about the easiest option of passing parameters, first. It requires no new code at all and is just about chaining queries: var list = customers .Find<ImportantCustomers>() .Where(c => c.City == "Ufa"); Where comes from the in line extension method [...]

What is common between Autofac, Castle and MEF?

Rinat Abdullin — Thu, 17 Jul 2008 04:56:09 +0000

Ok, now it is official. The father of Autofac .NET IoC Container, Nicholas Blumhardt, has joined the team of Krzysztof Cwalina at Microsoft. He will be the Program Manager in a team that’s building the Managed Extensibility Framework Additionally Hamilton Verissimo (founder of the Castle project) will be joining the same team. Congratulations and good luck, [...]

The power of simplicity

Rinat Abdullin — Tue, 15 Jul 2008 20:29:42 +0000

Answer to a comment by Jeremy Gray has started getting really long, so I’m putting the primary idea in a separate post. As we all know, NUnit is one of the first unit testing frameworks for .NET. It is old, stable and quite conservative. At the same time, it’s feature set is inferior to the functionality [...]

NUnit introduces the concept of row tests

Rinat Abdullin — Tue, 15 Jul 2008 17:35:48 +0000

Latest version of NUnit unit-testing framework for .NET has finally got support for the row tests. They are implemented by Andreas Schlapsi as an extension that now comes bundled with the NUnit 2.4.7. Basically, row test is a test that could be run multiple times with different parameters (in other words, it is a simple data-driven [...]

Options of separating queries from the ORM Repository

Rinat Abdullin — Mon, 07 Jul 2008 06:17:43 +0000

Let’s get back to the discussion from XPO+ORM+IOC series on Implementing ORM-independent Linq queries. As you can see from the previous post, there are 3 options to abstract away queries in a testable manner (and we will add one theoretical one for the Boo): 1. Put queries right into some domain-specific repository implementation (i.e.: CustomerRepository.FindImportantCustomers) and ask [...]

Implementing ORM-independent Linq queries

Rinat Abdullin — Sun, 06 Jul 2008 09:38:58 +0000

We’ll get back from the Boo + Business + DSL to the XPO + ORM + IOC series for a little bit. Nicholas Blumhardt has just written an interesting and extremely thorough article on Implementing the Specification Pattern via Linq. Let’s try to play with the idea and take it a one step down the road. [...]