Programming

LINQ – choosing between Concat() and Union()

In Linq To Objects, there are two ways you can join two sequences together, using either Concat() or Union(), and as I was wondering how the two differs I came across this post: http://weblogs.asp.net/fbouma/archive/2009/03/04/choose-concat-over-union-if-possible.aspx The main thing to take away from this article is: “If you care about the duplicates, Union() is necessary. However, in …

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Buzzword Buster – AOP

Definition: Aspect Oriented Programming (AOP) is a programming paradigm where each application can focus on its primary functions and core concerns by encouraging greater modularity and increasing separation of cross-cutting concerns (such as logging and authentication). Purpose: In any real-world applications, when you’re writing code to address the problem domain (say, booking an order) you …

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Less is MORE

Just finished watching an interesting seminar video by the guys from Object Mentor (a consultant company founded by Robert C Martin, the father of agile development) at: http://www.infoq.com/presentations/polyglot-polyparadigm-programming The video is about an hour long and covered a large number of topics around using different languages (polyglot) and different programming paradigms (poly-paradigm) to simplify and …

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Buzzword Buster – Cross-Cutting Concern

Definition: A Cross-Cutting Concern is a concern your application needs to address that is unrelated to your application’s problem domain, and ‘cuts across’ other concerns. Typical examples include: logging persistence security error handling They are usually difficult to decompose from the rest of the system and result in tangled code. Addressing these cross-cutting concerns will …

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