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Time *not* to refactor the JobDispatcher class

Published on Wednesday, February 11, 2009 In Programming Tags #async

The JobDispatcher has to tasks to perform: keeping track of the dispatched jobs and executing them.

So, at one point, Marc and I discussed about adding a virtual Execute(IJob job) method that would Execute the job. This way, inheritors could add tracking or exception handling.

Time to refactor the IJob interface and JobDispatcher class

Published on Tuesday, February 10, 2009 In Programming Tags #async

The JobDispatcher and the Jobs are a nice architecture because they follow two important principles of OO design, separation of concerns and inversion of control:

• The jobs only do their job.
• The jobs yield the responsability of decided where and when they should be executed to the dispatcher.
• The dispatcher only decide where and when the job should be executed.

To go even further with the inversion of control, we could...

First steps in the asynchronous world

Published on Saturday, February 7, 2009 In Programming Tags #async#components

A while ago, a friend of mine blogged on commands and command dispatchers. After a "sure, why not" phase, I decided to give it a try for implementing a small application.

IComparable & IComparer

Published on Friday, January 2, 2009 In Programming Tags #dotnet#architecture

In most cases, comparing two instances of the same time is considered to be an intrinsic feature of the type. This is true for int or DateTime. But what about a Person? Should we compare the Name or the DateOfBirth?

This is when the Comparer becomes handy. You can create one on your type for each scenario.