Expression Language (EL) was first introduced as part of JSTL 1.0, was then moved JSP 2.0 and was unified with JSF 1.2 in JSP 2.1. In Java EE 7, EL is a new separate JSR, JSR 341. Many new features are introduced in EL 3.0.
This blog shows how to use new following new features of EL 3.0:
Lambda expression (section 1.20 of EL 3.0 spec)
The new operator ; to separate...
Most voters in the just-completed Java.net poll on Java EE 7 believe that Java EE 7 will be the most widely used version of Java EE within the next few years. A total of 354 votes were cast in the poll, which ran for three weeks...
Over the last few years we've been busily writing the latest and greatest version of Magnolia. After all of this focus on new and (we hope) great, it seemed like time to focuse on something old and great.
If you are old enough to remember the ZX Spectrum, the Commodore 64 or their various competitors, or if you like any kind of games, please keep on reading.
You might have heard of the qaop...
Last week, I attended the global live launch of Java EE 7, a webcast I wrote about earlier, titled "Introducing Java EE 7." The live webcast happened twice, thus enabling every Java developer in the world to attend the live session at some point during non-sleeping hours...
Asynchronous operation was introduced in Servlet 3.0. ServletRequest#startAsync is used to put the request into asynchronous mode. A thread need to be created implicitly or explicitly (see here for an example).
Servlet 3.1, JSR 340 includes clarifications in asynchronous area. Besides Servlet 3,1, Concurreny Utilities for Java EE 1.0, JSR 236 is introduced in Java EE 7. JSR 236 provides a...
Java User Groups
So we thought we’d get to know more about the man behind the book itself!
As a developer, when you are building and/or designing a Java application;
the first (or one of the first) question you might ask is...
"What are the objects?"
This seems to be a very simple question. But it is not.
There probably is no single "right" answer to this question.
Nevertheless, careful consideration given to this question will contribute to
a good start to one's Java development...
In this article, based on chapter 8 of Redis in Action, author Josiah Carlson talks about Twitter user and status objects, which are the basis of almost all of the information in our application, and then deleting posts, which involves manipulating followers/following lists.
When we started building our first Java application, at my company Amway Corp, many years ago;
we learned our first lesson.
In spite of all the formal training we received, in spite of all the literature at our disposal;
we still needed help with our Java development on a regular basis.
Where would this assistance come from?
At the time, we had no in-house Java subject-matter experts.
In this article, based on chapter 1 of OCP Java SE 7 Programmer II Certification Guide, author Mala Gupta explains how to define methods that throw exceptions, the different combinations of defining overriding methods, and when the overridden or overriding methods throw checked exceptions.
Learning Java (or any programming language) can be a great challenge.
Any group of developers, learning Java, will bring with them a variety of backgrounds and experiences.
In our case, our first Java project began with developers that had COBOL language experience.
Our second Java project, began with developers that had RPG language experience.
Even though COBOL and RPG don't "look" like Java,...
Behavior Driven Development (BDD) is a software engineering practice designed to help teams build and deliver more valuable, higher quality software faster. In this article, based on chapter 1 of BDD in Action, author Samuel Breed explains how Backbone helps to solve this problem in a way that is lightweight and flexible.
Today, we are being inundated with data. So much so, that IBM estimates that in 2012, 2.5 quintillion bytes of information are generated every day. That's a million trillion bytes of data, more data than we can fathom and considerably more than we can easily process. Online, every web-page we visit, every link we click, every phrase we search, every photo or video we upload, every "like," every purchase we make, and every comment we write generates some amount of data online with associated metadata (data about that data, such as date and time, and other useful information). Our online footprints generate not only large quantities of data, but equally large amounts of insight as this data can lead to real value if processed appropriately. This modern data deluge has been called Big Data, and it's only getting bigger. In this article based on chapter 1 of Pig in Action, author Tim Jones talks about how Pig democratizes Big Data.
The results of the most recently completed Java.net poll suggest that awareness of the Adopt-a-JSR effort within the Java developer community continues to increase, albeit at a perhaps modest pace. Still, growing awareness is a strong positive for any long-term effort. And the Adopt-a-JSR program is certainly intended as...
We thought we'd get to know a little more about the author!
Acteur is a pattern for pipelining work - a little DI functional goodness for Java. I might have been speaking Swahili when I wrote about Acteur last month. So here's a simple explanation of the design pattern behind it, with a simple sample project.
Global Education and Learning
Writing a DSL for writing exactuable spec with Java 8. Yes, it's easy.
Java Web Services and XML
Following the development of Java EE 7 has required reading lots of different posts about the different JSRs that are part of Java EE 7. On Wednesday, June 12 (or Thursday, depending on where you live), you'll have an opportunity to familiarize yourself with Java EE 7 in one sitting, by attending "Introducing Java EE 7," a live global interactive webcast...