First, a very basic introduction before we get into code. Drools is a Business Logic integration platform which offers an integrated platform for Rules, workflow, event processing etc. Drools started off as a Rete based rule…

One of the common principles in the bouquet of SOLID principles is the Open Closed Principle (OCP) which states that software entities should be open for extension but closed for modification. This means that if we have to add any new…

Drools Flow provides workflow capabilities and can easily integrate rules with processes. You can easily define the series of steps that would be followed in a workflow using the flowchart based approach to get a rule file. All this…

SpringSource have recently released the first milestone of Spring Data JPA project. What are its features? and how can we use them. Spring framework already provides support to build a JPA based data access layer. So, what does Spring Data adds to it. I used it for one small…

Scala Test is an open source Test framework for the java platform. With Scala test we can either test java or Scala code. It integrates with popular existing tools like JUnit, TestNG and it is designed to do different styles of testing like Behavior Driven Design for example.

Google Script UI services enables to create rich UI in Google Sites. There is a bug where there is no way to find out directly where Google Apps Script is embedded in Sites. If you are faced with similar dilemma and need a workaround read on. This a…

In my last post, we had seen how easy it was to create REST based services with Spring and Jersey. In this post we would quickly see how we can unit test them. Ok, this is not entirely a unit test in the strict sense because we are not testing the…