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Java User Groups

Very soon, it will be time for the annual Java One conference in San Francisco, California. Thousands of Java-fanatics will make the journey to my favorite city "by the bay" (and my home town). Thousands more Java-fanatics will not attend (including me) and wish they could. I hope all attendees will have a great and productive time at Java One 2013. My general advice to attendees is, "Make the...
on Aug 25, 2013
Cassandra is an open source column oriented nosql database. It was born to solve problems with persistence and high performance. Cassandra has been used by many companies in many industries for a wide variety of use cases. In addition it has a strong and thriving community supporting it. We will be having a special series of events throughout Brazil in the first week of September. Each day...
on Aug 21, 2013
Grails in Action, Second Edition MEAP Update + 44% off Save 44% on Grails in Action, Second Edition with Promotional code mlgsmith2jn at manning.com What’s new? Chapter 9, “Building reliable applications”. We have now introduced all the core elements that make up a standard Grails application. The question now is how to further develop the application while ensuring that we don’t introduce bugs...
on Aug 20, 2013
Apache Thrift’s Role in Distributed Applications By Randy Abernethy, authors of The Programmer's Guide to Apache Thrift Apache Thrift helps programmers build high performance cross-language services to address the growing need for multilanguage integration. In this article, based on chapter 1 of The Programmer’s Guide to Apache Thrift, author Randy...
on Aug 1, 2013

Java Tools

Spring is an open source framework whose goals is facilitate the Java developer's life, it began with dependency injection and nowadays works on many plug-ins. Plug-ins such Spring Social, to connects social media like twitter and facebbok, Spring security beyond control inversion. The goal of this post is talk about Spring Data working with Cassandra. Spring Data does part of Spring plug-in,...
on Aug 25, 2013
In the recently completed Java.net poll on Continuous Integration (CI), a majority of voters declared that they don't know what Continuous Integration is. A total of 280 votes were cast in the poll, which ran for two weeks. The exact question and results were: Does your company utilize Continuous Integration (CI) in its software development projects? 30% (85 votes) - Yes 9% (25 votes) - CI...
on Aug 12, 2013
Over the next few months, I will be running a new advanced TDD/BDD workshop in cities around Australia, including Sydney, Melbourne, Perth, Canberra and Brisbane (I also travel internationally a lot, so if you are interested but not in Australia, get in touch!). Here is the outline of the new course:   Learn TDD/BDD from the author of BDD in Action Test Driven Development (TDD) is an...
on Aug 7, 2013

Java Desktop

In the most recently completed Java.net poll, a large majority of developers stated that they have not yet done any development using JavaFX. Java.net polls are not scientific, of course, but it's unusual for the polls to produce such a decisive result. Participation in the poll was high: 2120 votes were cast, and three comments were posted. The exact question and results were: Have you done...
on Aug 24, 2013
According to research, most complex report development work can be simplified by performing the data source computation in advance. For example, find out the clients who bought all products in the given list, and then present the details of these clients. In developing such reports, it is the “computation” part and not the “presentation” part that brings about major difficulties. In which stage...
on Aug 20, 2013
Save 44% on CoffeeScript in Action, by Patrick Lee with Promotional code mlleejn at manning.com. What’s new? • Chapter 11, “In the Browser,” has been added. • The Table of Contents has been updated. It’s important to learn the challenges of the browser environment that your CoffeeScript programs live in. Chapter 11 shows you how to write CoffeeScript programs in a web browser and explains the...
on Aug 16, 2013
Java Persistence with Hibernate, Second Edition MEAP Update + 44% savings! To save 44% on the pBook and eBook use Promotional code mlbauer3jn at http://www.manning.com/bauer3/. Offer valid until Aug 21, 2013. What’s new? •Chapter 11, “Implementing conversations” •Chapter 12, “Fetch plans, strategies, and profiles” •Chapter 13, “Filtering” We have three new chapters for you. In chapter 11, you’...
on Aug 16, 2013
In Java development, the typical data computation problems are characterized with: Long computation procedure requiring a great deal of debugging Data may from database, or Excel/Txt Data may from multiple databases, instead of just one. Some computation goals are complex, such as relative position computation, and set-related computation Just suppose a sales department needs to make statistics...
on Aug 13, 2013
In report development, we may need to present the data from multiple databases in one report, such as data from MSSQL database for CRM and Oracle database for ERP. If the reporting tool like iReport only supports single data source, then we need to consolidate the multiple data sources into a single data source. The Crystal, BIRT, and other so-called reporting tools for multiple data source can...
on Aug 6, 2013
The data computation layer in between the data persistent layer and the application layer is responsible for computing the data from data persistence layer, and returning the result to the application layer. The data computation layer of Java aims to reduce the coupling between these two layers and shift the computational workload from them. The typical computation layer is characterized with...
on Jul 31, 2013
Recently, I read Why Big Data Projects Fail by Stephen Brobst. I can’t agree more with his opinions which exposed the problem I’ve been worried about. In this article, I am going to further discuss this topic to remind the enterprises to beware of falling into such pitfall of failure. Let’s have a look on a positive example. As a successful enterprise in leveraging big data, how does Google make...
on Jul 24, 2013

Java Enterprise

Java API for WebSocket is a new JSR to Java EE 7. It provides a stardard Java API for creating WebSocket applications. This gives web applications the ability to push data. In Java EE 6 samples, we added a chat room sample to illustrate how to use of Servlet 3.0 asynchronous operation. In that sample, the servlet code did the following: keep track of AsyncContext in a Queue create a thread to...
on Aug 13, 2013
WebSocket is a bi-directional, full-duplex, TCP based messaging protocol. It is originally proposed as part of HTML5 and is a IETF-defined Protocol (RFC 6455). And W3C has defined JavaScript API for WebSocket which is in candidate recommendation since 2012-09-20. JSR 356: Java API for WebSocket provides a standard Java API for creating WebSocket Applications. The specification provides an API for...
on Aug 7, 2013
Introduction Larry Fernandez is a Principle Software Developer at Amway Corp in Ada, Michigan. He has been in IT software development since 1981, and was named an IBM Champion in 2012 and 2013. Larry's team is currently working on its second major Java/J2EE application using WebSphere Application Server technology. In this fifth Java.net "Lightning Interview" we ask Larry to share some of the...
on Aug 4, 2013

Global Education and Learning

The 15th anniversary of OSCON showed its interest in diversity, and continuing to broaden the market for open source technology. I saw a lot of discussions on how to get people interested, and keep people involved. It was remarkably open to all sorts of ideas on how to keep open source going into the future. I started with Tim Berglund’s GitHub Power Tools, which was filled with people who had...
on Jul 30, 2013

Open JDK

Lambda Expressions (JSR 335) are perhaps the most significant innovation in Java 8. Many consider Lambdas (or 'closures') a game-changing technology for the Java language. Our most recently completed Java.net poll asked the community for its take on the significance of Lambda Expressions as they pertain to company decisions on how quickly to migrate to and adopt Java 8. A total of 490 votes...
on Jul 27, 2013