What Is Enterprise JavaBeans (EJB)?

In the old days, a man who was working on the computer to get some work done had to work for hours on end to get just one output from the computer. Thank God! The good old days are gone, and we can rely on beans. Not quite literally, but you will read on to understand what we mean, won't you? When you desired to build an extensive distributed application, you had to code it yourself. No big deal, you were a pro! You'd write the code and send it off to customers, and they'd put it on their servers, and then… nothing. The code was only compatible with a specific server type, so if your customer wanted to switch to another server type or another hosting provider, they would have had to rewrite all of your code. That wasn't an option since they'd probably already paid for your work! Enter: Enterprise JavaBeans (EJB). EJB is a way of packaging up your code to be more easily deployable across multiple platforms. It ensures your code will work wherever it's deployed, providing a standard API for Java Platform Enterprise Edition (Java EE) applications. EJB is the Easy-to-Build, Just-as-Easy-to-Program, and Never-Needs-a-Refactor way to build a web application. You don't have to worry about security, transactional integrity, or other technical details. The EJB container handles everything for you. All you have to do is write your business logic and let the EJB container take care of everything else. It's like having your assistant who knows exactly how to get things done right every time! If that's not enough, EJB makes it easy for clients (like mobile devices) to communicate with servers without worrying about business logic or security issues. That means thinner clients! Thinner clients tell faster load times and less data usage on small devices like smartphones and tablets, which is excellent for those users who are always on the go!