Create your own maven archetype

Maven is a great build automation tool. It describes how software is built and of course it describes its dependencies. The only problem that arises from its use is the limited variety of its archetypes and the existence of old dependency versions inside the poms of these archetypes. I am using a couple of web […]

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Vaadin Framework

Vaadin framework is a java web framework for building web applications rapidly. The final outcome is really nice and the coding style resembles java swing. You can even find a recent comparison of the most popular java web frameworks here. So in this article we will see how we can build a vaadin web application […]

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Spring Aop (Part 1)

Spring is an open source application framework and IoC (inversion of control) container for the Java platform. More details and a detailed explanation of IoC or Dependency Injection (as IT community decided to call it) can be found in this article by Martin Fowler. In this article I want to talk about how spring uses […]

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Hibernate caching feature and how to use it

Hibernate is a really cool ORM tool that can be used from a Java project , as an intermediate layer between our project and the underlying database. In this example I will use MySql as the underlying database, although any database can be used to support our application. The IDE that I will use is […]

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Run Arch-Linux from a flash drive

Many users have a single operating system installed at their laptops and they don’t want to risk loosing their job by installing a second operating system (especially these users that rely on one single internal hard drive). So here is a way to install a popular linux distribution called arch-linux , on a usb flash […]

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NetBeans tips

NetBeans is a really great tool that can help on the rapid development of Java Web Applications or Java Desktop Applications, with a great community and many fans (mostly Java Developers). This article discusses upon a specific flow that I have found, that seems to be a bug inherited from earlier versions of Netbeans IDE. […]

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Perl tips

– Variable Interpolation This is a classic between many programming languages. When we use a double quoted string, for every variable that we put inside the string , we get variable’s value as part of the output when we execute our script. For example : #!/usr/bin/perl #script1 use 5.012; my $name = “Stavros”; print “My […]

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Mac OS Lion 10.7.2 memory problems

As I was working using firefox I noticed the appearance of the well known ‘beach ball’ that shows that the operating system is struggling to acquire resources. Immediately I ran Activity Monitor to see what is going on. Here is the table with the processes that I’ve got after running Activity Monitor Utility: (The picture […]

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