Traditionally, C programmers and Java programmers are accustomed to use the type casting form: (type)variable. C++, instead of that classical type casting form, has various type casting operators, used for different purposes. Each operator is used with different kinds of references, for example, you can not use the static_cast operator with virtual classes. Type casting operators in C++ has a syntax very similar to C++ Templates: cast_operator<type>(variable).

snmptrapd(8) is a SNMP trap daemon, in other words, it captures SNMP notifications from the network and similar devices. In this post I will try to explain how to configure this daemon to allow a network server to process SNMP traps using both, embeded perl handlers for snmptrapd(8) and plain standard input — or stdin — handlers.

Optimizing SQL queries is quite simple task, you just need to follow some rules on how you sort the filtering criteria and how you use your select statements. I will try to explain how you can optimize your queries in this post.

Hello, today I’ve released pyxser-1.4.4r, the publishing message is as follows:

Hello Python Community.

I’m pleased to announce pyxser-1.4.4r, a python extension which contains functions to serialize and deserialize Python Objects into XML. It is a model based serializer. Here is the ChangeLog entry for this release:

Modelling databases is not a simple task. Many times we found some misspelled words, mixed case words and some horrifying things on many databases of third party systems. My rules are simple to follow, and most of them ensures a well designed database, with special care on how do we query that database, creating reliable and optimised for speed table design and queries.

Many people know the Model View Controller architectural pattern. Another interesting pattern is Presentation Abstraction Control architectural pattern. We can implement it using Dependency Injection or similar Inversion of Control patterns. So, when we are modeling solutions, we many times leave the control or business logic on the Controller. This will guide us to a very coupled platform. Remember that any well designed architecture claims for cohesion instead of coupling its components. On this article I will try to analyze the use of IoC on the PAC pattern, so we can have more maintainable software components, mainly on n-tier architectures.

How can we measure the software quality? There are many perspectives on that issue of software development. Matthew Wilson has spotted some evaluations that we can follow to improve the quality of our code and bring us a wide perspective on what does matter when we are evaluating the software quality.