There is no language yet available to replace Java!

January 7, 2010

There is a perception created in the software development industry that Java is out-dated and Ruby, Python, Scala, etc. are going to take over Java’s position. Some “hyper-enthusiasts” are already left Java platform. Sun’s profit model collapse, Applet, Jini, EJB and JSF heavyweight framework failures added fuel to these campaigns. I still believe no language yet available in the market to replace Java. I don’t have to talk why Java is better because it is proven solution for more than a decade but I would like to talk about how false campaigns are created by “hyper-enthusiasts”. It is easy to fall into these false campaigns because as a developer we want new challenges and something new to learn. Read the rest of this entry »

4 Comments | Critic, Java, Java EE, Open Source, Web | Tagged: , , , , , , | Permalink
Posted by Venkat

Wicket in OC4J / OracleAS

November 22, 2009

Recently I tried deploying wicket framework based web application in OC4J container it didn’t work, whereas the same code works well in Tomcat. While googling found a few solution which recommends to use wicket servlet configuration instead of servlet filter to resolve the issue. I did the same but no luck. Then I tried associating a bookmarkable page for the homepage then it works well. Here is the code snippet: Read the rest of this entry »

Leave a Comment » | Java, Java EE, Open Source, Web | Tagged: , , , , | Permalink
Posted by Venkat

JRebel – a productive tool for Java developers

November 15, 2009

Java Rebel – a very useful productive tool
One of my friend told me about JavaRebel. Later I tried with eclipse it worked well. The installation and setups are very simple and easy. It saves a lot of time for enterprise class projects. Now you don’t have to restart Tomcat for each changes. Try out today, enjoy the productivity.
Reference:
http://www.zeroturnaround.com
http://www.zeroturnaround.com/blog/configuring-ide-debugging-with-javarebel/
http://www.zeroturnaround.com/update-site/

Leave a Comment » | Java | Tagged: , , | Permalink
Posted by Venkat

Java – Object XML Mapping

November 11, 2009

Have you written 1000s of buggie lines of code to parse XML? Generating an XML is easy but when it comes to XML parsing/import it is hard. We have to think about many scenarios and deal with many combinations. I use to prefer XPath API for XML import because I can fetch required values as they way/order I want rather than iterating all nodes in DOM structure. XPath is better than DOM coding but is not the best solution. So I started looking for a solution similar to Hibernate for XML to Object translation. Read the rest of this entry »

1 Comment | Java | Tagged: , , , | Permalink
Posted by Venkat

Single-Sign-On (SSO) in Java Platform using Active Directory

August 29, 2009

Sorry guys it been long time writing in my blog.

Nowadays single-sign-on became a hot selling feature for all desktop and web-based products. In this article I talk about single-sign-on implementation in Java platform with Active Directory server. Since Microsoft Windows has become one of the most common corporate network platforms it is worth integrating with your product. Starting from Windows 2000 Microsoft supports Kerberos protocol. It is unusal that Microsoft support open-standard protocol, but they do in this case; good for us :-) Read the rest of this entry »

27 Comments | Java, Java EE, Open Source, Web | Tagged: , , , , , , , | Permalink
Posted by Venkat

GWT an innovative framework

May 19, 2009

After the birth of Struts “framework” became hot buzz word in the software development industry. Now almost all languages, technologies and methodologies have tons of frameworks. Recently I was trying to figure out what is latest in the market and what are the different frameworks are available. Read the rest of this entry »

1 Comment | Web | Tagged: , , , , , , | Permalink
Posted by Venkat

Handling currency calculations in Java business application

March 29, 2009

Recently I saw a weird floating issue in Java application which made our currency calculation wrong. Can you guess what would be the output of the below code?

System.out.println(38.0 - 26.6);

Read the rest of this entry »

5 Comments | Java | Tagged: , , , , | Permalink
Posted by Venkat

A JSP code to debug class loader issues

March 15, 2009

Class Loader is one of the complex concept/design to understand in Java programming. On the initial days working with Tomcat and Desktop application there is not much class loading issues. From EJB days class loading became complex by specification and implementation. Seems JavaEE 5 tries to simplify the class loading specification but I don’t know much about that. Read the rest of this entry »

Leave a Comment » | Java EE | Tagged: , , , , , | Permalink
Posted by Venkat

Is UML dead? & What is the future of UML?

March 9, 2009

Once upon a time UML is a hot buzz word in software development industry. If you know what is aggregation, abbreviation, etc. you will get job easily as an architect. Tools like Rational Rose are costly only a few company had that tools. Read the rest of this entry »

6 Comments | Critic, Software Engineering | Tagged: , , , , | Permalink
Posted by Venkat

Is design pattern teaches how to design an application?

March 8, 2009

Many of them think that if a person knows design pattern (the theory), he/she can design an application; due to this misunderstanding many stupid questions been asked in interviews about design pattern in a meaningless way. Read the rest of this entry »

Leave a Comment » | Critic, Software Engineering | Tagged: , , , | Permalink
Posted by Venkat

JDBC performance tuning with optimal fetch size

February 1, 2009

Tuning performance using fetch size is an old technique some of you might already be using this technique; some may knew about this but may not have implemented. Recently I implemented in my current project, would like to share my experience. In a typical production environment database and application will be running on different physical server. Even if you have high-end server class machine the network traffic between application and database server is one of the key factor of your application performance. Read the rest of this entry »

7 Comments | Java | Tagged: , , , , | Permalink
Posted by Venkat