This goal of this post is to walk you through an awesome business intelligent framework named “Pentaho”. I believe the philosophy of “Learn by Practice”. So, I will show you the steps to get pentaho up and run for a fictitious company. Along with this exercise, you should be able to understand how Pentaho works [...]

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Introduction to Hibernate 
Hibernate is the most popular ORM tool in the market. To summarize, it provides the following key features:

Support its own object query language HQL
Transparent persistence - keep track of all loaded objects and automatic change detection through snapshot comparison. To do that, it uses CGLIB to create runtime proxies for persistent objects through dynamic [...]

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How Spring MVC works?
Many people suggest me to use Spring MVC instead of Struts. I decide to take a quick look at that. Before I give you a comparsion chart, I think it is good to outline the core mechanism that Spring MVC uses to achieve the goal. Here it is:

A dispatcher servlet, which will intercept incoming requests.
A configuration that instructs the web container [...]

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How can you implement the page flow for airline booking system with Struts alone? Before we go deep on the new technology, lets try to tackle it the old way. First, take a look at the page flow below first.
To implement a multi-step page flow in Struts,  we can chain individual actions together through the various views. Action [...]

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I am looking into Pentaho currently for my project. It looks very promising so far. Here is the video that talks about the architecure of it. Enjoy.

Continue reading " Pentaho Reporting Framework - Architecture "

There are different kinds of events in the Flex world. An event can be generated from user gesture, return of requests and component lifecycle. Use event is a two step process, (1) You need to write the handler (2) You need to register the handler to the event hook. To register event, there are two [...]

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Have you ever used [Bindable] in Flex? Do you know it is metatag? Apart from this, there are 12 more documented metatag in Flex framework. I will list them all out here for your reference:
ArrayElementType
Data type restriction like Java Generic
[ArrayElementType("String")]
public var arrayOfStrings:Array;
Bindable
Allows for easy data synchronization within the components. Bindable can be used to [...]

Continue reading " Flex - Looking into Metatag "