Java Code Geeks

High performance libraries in Java

Published on 2012-02-12 17:35:00

There is an increasing number of libraries which are described as high performance and have benchmarks to back that claim up. Here is a selection that I am aware of. Disruptor library...

Big Data analytics with Hive and iReport

Published on 2012-02-11 08:37:00

Each J.J. Abrams' TV series Person of Interest episode starts with the following narration from Mr. Finch one of the leading characters: “You are being watched. The government has a secret system--a...

Embedded Jetty, Vaadin and Weld

Published on 2012-02-10 12:33:00

When I develop web applications I like to be able to quickly start them from Eclipse without having to rely on all kinds of heavy-weight tomcat or glassfish plugins. So what I often do is just create...

Problems with ORMs Part 2 – Queries

Published on 2012-02-10 07:34:00

In my previous post on Object-Relational Mapping tools (ORMs), I discussed various issues that I’ve faced dealing with the common ORMs out there today, including Hibernate. This included issues...

What's Cooking in Java 8 - Project Lambda

Published on 2012-02-10 04:26:00

What is project lambda: Project lambda is the project to enable lambda expressions in java language syntax. Lambda expressions are major syntax in functional programming languages like lisp. Groovy...

Growing hairy software, guided by tests

Published on 2012-02-09 17:26:00

Software grows organically. One line at a time, one change at a time. These changes soon add up. In an ideal world, they add up to a coherent architecture with an intention revealing design. But...

Apache Camel 2.9 Released - Top 10 Changes

Published on 2012-02-09 11:42:00

On the last day of 2011 the Apache Camel artifacts just managed to be pushed to the central maven repo, just shy 1.5 hours before champagne bottles was cracked and we entered 2012. The 2.9...

Properties with Spring

Published on 2012-02-09 07:08:00

Spring has always tried to be as transparent as possible when it comes to working with properties. Before Spring 3.1 however, the mechanism of both adding new sources of properties into Spring as...

What is behind System.nanoTime()?

Published on 2012-02-09 04:49:00

In java world there is a very good perception about System.nanoTime(). There is always some guys who says that it is fast, reliable and, whenever possible, should be used for timings instead of...

PopupMenu in JavaFX 2

Published on 2012-02-08 17:25:00

Creating Popup Menus To create a Popupmenu in JavaFX you can use the ContextMenu class. You add MenuItems to it and can also create visual separators using SeparatorMenuItem. In the...