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Emotional Feelings from the Lead Developer 2016

| July 3, 2016 | 0 Comments
Emotional Feelings from the Lead Developer 2016

Since I move to the Netherlands and start working at Genetwister Technologies I have attended to many conferences, all of them technical. But this year I decide to go to the Lead Developer Conference in London. I had a few concerns about what I could learn but all of them disappear completely since the first […]

Job interviews and programmers

| December 23, 2014 | 0 Comments
Job interviews and programmers

Independently of what is the difference between a programmer, developer, software engineer,… (Engineers vs Programmers) when someone apply for a software related position which involves mostly create code, the standard preparation for the interview involves: Research a little bit (very little in fact) about the company. Go to google and search for  “job interview developer […]

Unit & Integration Test in Cassandra

| November 5, 2014 | 0 Comments
Unit & Integration Test in Cassandra

Cassandra is a distributed database, so it is inherit in the nature of Cassandra that you are going to have more than one node in your cluster. When we run unit test on Mysql there are a few options available and one of them is use an embedded mysql server which is probably the simplest […]

Query data using CQL with a dynamic LIMIT

| October 26, 2014 | 0 Comments
Query data using CQL with a dynamic LIMIT

Apache Cassandra, a top level Apache project born at Facebook and built on Amazon’s Dynamo and Google’s BigTable, is a distributed storage system for managing very large amounts of structured data spread out across many commodity servers, while providing highly available service with no single point of failure. Cassandra aims to run on top of […]

Spring AOP Advice on Annotated Controllers

| April 2, 2013 | 2 Comments
Spring AOP Advice on Annotated Controllers

Spring AOP (Aspect-oriented programming) framework is used to modularize cross-cutting concerns in aspects. If you want a more simple definition you can think of them as a Interceptor but with more options configurations possible.  In Spring there are two different constructs that get called “interceptors”. First, there are Handler Interceptors, which are part of the Spring MVC […]

Round a number to 2 decimal places in Java

| August 8, 2012 | 0 Comments
Round a number to 2 decimal places in Java

When we are working in a software project that uses numeric quantities and in with many different formats, such as financial applications, we have to deal with problems viewing these numbers. For example we can use the float type to represent a given concept non-monetary concept (for monetary concepts is preferable to use BigDecimal object), […]

Quiz abstract classes in Java: call from a concrete method to an abstract one

| June 25, 2012 | 0 Comments
Quiz abstract classes in Java: call from a concrete method to an abstract one

  Understanding how works abstract class and the differences with an interface is very important if you want to make a good OOP design in Java. Basically an abstract class is a class that is declared as abstract, it can include both abstract and not abstract methods. Abstract classes cannot be instantiated but they can […]

The method getTextContent() is undefined for the type Node

| May 3, 2012 | 16 Comments
The method getTextContent() is undefined for the type Node

The method getTextContent() is undefined for the type Node You can get this kind of error when your develop a system that use xml manipulation using library xml-apis. If you try to find a solution by a search in google you can find solutions like: org.w3c.dom.Node.getTextContent() is only available as of Java 1.5 But, you […]

Use separate folder from apache to develop with PHP

| April 29, 2012 | 2 Comments
Use separate folder from apache to develop with PHP

Most of php developers use in their local environments a configuration similar to: Apache + PHP + Mysql. It´s very common the use of integrated solutions such us XAMPP. IDE such us Eclipse (eclipse PDT), Zend Studio,etc.. A debugger: Zend Debugger is the most recommended.   Install XAMPP (or similar solutions) and the IDE is […]

Development environment for wordpress: instant wordpress

| April 4, 2012 | 0 Comments
Development environment for wordpress: instant wordpress

Development environment for wordpress is a thing that you have to use sooner or later. Instant WordPress is a complete standalone, portable development environment for wordpress. It turns any Windows machine into a WordPress development server and can even run from a USB key. If you’re a Windows user, you may be wondering how Instant WordPress […]