Does Pivotal' Spring Certification helps in Job and Career? 5 Reasons to Become a Certified Spring Developer

One of the frequently asked question among Java and Spring developer is whether Spring certification is valuable? or does Spring Certification help you in Job and Career? These questions are not very different from what Java developer ask about Oracle's Java certification (see here). The short answer to these question is Yes, Spring Certifications are very valuable and it not only provides Industry recognition for your knowledge, experience, and skill but also set you apart from the millions of Java and Spring developer who are not certified. Of course, as with any certification, the most valuable part, apart from recognition is the learning process and this is true for Spring certifications as well.

Spring Security Concurrent Session Control Example Tutorial - How to limit number of User Session in Java JEE Web Application

If you don't know, Spring security can limit the number of sessions a user can have. If you are developing a web application especially a secure web application in Java JEE then you must have come up with the requirement similar to online banking portals have e.g. only one session per user at a time or no concurrent session per user. Even though you can also implement this functionality without using spring security but with Spring security, its just piece of cake with coffee :).  You just need to add a couple of lines of XML in your spring security configuration file and you are done. In order to implement this functionality, you can use the <concurrency-control> tag.

How to setup JNDI Database Connection pool in Tomcat - Spring Tutorial Example

Setting the JNDI Database Connection pool in Spring and Tomcat is pretty easy. Tomcat server documentation gives enough information on how to setup connection pool in Tomcat 5, 6 or 7. Here we will use Tomcat 7 along with spring framework for creating a connection pool in Tomcat server and accessing them in Spring using JNDI code. In our last article, we have seen how to setup database connection pool in Spring for core Java application which doesn't run on a web server or application server and doesn't have managed J2EE container. but if you are developing a web application than its better to use server managed connection pool and access them using JNDI. Spring configuration will be generic and just based on JNDI name of Datasource so it will work on any J2EE Server e.g. Glassfish, WebLogic, JBoss or WebSphere until JNDI name is same. 

Top 5 Apache Kafka Courses to learn Online - Best of Lot

Hello guys, you might have heard about Apache Kafka, the next generation, Big Data messaging system which is handling billions of messages per day on companies like LinkedIn, Uber, Airbnb, Twitter etc. In past, I have shared some awesome courses on Big Data, Spark, and Hadoop and many of my readers requested me to share similar suggestions for Apache Kafka. If you are interested in Apache Kafka and looking for some awesome courses to learn online then you have come to the right place. In this article, I am going to share some of the best Apache Kafka courses to learn online. If you know about Big Data then there is a good chance that you have also heard about Apache Kafka, the software which handles data feed for any organization. It's a distributed streaming platform developed by Apache foundation for building real-time data pipelines.

Top 10 Popular Programming languages and their Creators

There are many programming languages out there in the software world and they are still coming like Scala, Go, Closure etc, but the only handful of them have managed to survive to date. These are the ones who have contributed immensely to software development. Since programming language is a single most important thing in software development world, it's often discussed, criticized and improved over the years. Programmers and developers, who those programming languages are icons of programming world and sometimes I feel sad when a guy using a programming language doesn't know, who is behind that.

Top 5 Hadoop Courses to Learn Online - Best of Lot

If you are learning Big Data and want to explore Hadoop framework and looking for some awesome courses then you have come to the right place. In this article, I am going to share some of the best Hadoop courses to learn Hadoop in depth. In last a couple of articles, I have shared some Big Data and Apache Spark resources which are well received by my readers. After that, a couple of my reader emailed me and asked about some Hadoop resources e.g. books, tutorials, and courses, which they can use to learn Hadoop better. This is the first article in the series of Hadoop, I am going to share a lot more about Hadoop and some excellent resources in coming month e.g. books and tutorials. Btw, If you don't know, Hadoop is an open source distributed computing framework for analyzing Big data and it's been around for some time.