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John Cook09/07/12
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The Limits of Statistics

When statisticians analyze data, they don’t just look at the data you bring to them. They also consider hypothetical data that you could have brought.

Simon Metson09/07/12
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"Schemas" in CouchDB

CouchDB is a schema-less document store, but there are times when a schema is a good thing to have around, one way or another. So can you have your cake and eat it too?

Jos Dirksen09/07/12
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Getting Started with Scala and Scalatra

Scalatra is a lightweight scala based micro-web framework that can be used to create high performance websites and APIs. In this tutorial we'll get started with the installation of scalatra and import our test project into Eclipse.

Dmitriy Setrakyan09/07/12
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10 Useful Performance Tuning Tips for GridGain

I have been getting many questions of how to tune GridGain, so I decided to create a brief manual which covers most important tuning properties.

Mike Stonebraker09/07/12
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VoltDB's End of Summer Engineering Update

It's been a busy summer here at VoltDB! Since spring the VoltDB Engineering team has released VoltDB four times (we're operating on 3 week sprints) and delivered numerous product and performance enhancements.

Antonio Goncalves09/07/12
11 replies

Shouldn’t we Standardize a Java Logging API?

A few months ago I was struggling (again) with logging configuration in JBoss 7.x. I was so depressed that I wrote to the Java EE 7 expert group : Logs. Should we finally do something? As a developer I’ve used all the possible logging Java frameworks for the last 12 years and I still struggle with logging in 2012.

Pierre - Hugues...09/06/12
2 replies

Java 7: HashMap vs ConcurrentHashMap

This article will revisit this classic thread safety problem and demonstrate, using a simple Java program, the risk associated with a wrong usage of the plain old java.util.HashMap data structure involved in a concurrent threads context.

Stephen Chin09/06/12
0 replies

JavaFX in Spring Day 3 – Authentication and Authorization

Welcome to Day 3 of the JavaFX in Spring blog series. In this post we are going to finish off the Customer Data application by taking advantage of the Spring Security APIs on the client.

Mikio Braun09/06/12
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Levels of Abstraction in Big Data

How do you weigh abstractions when working with existing infrastructure in Big Data? Prioritize flexibility.

Allen Coin09/06/12
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Android UI in Action: Layout Animations

A frame animation is one of the simplest and most straightforward types of animations. This type of animation is implemented by displaying a succession of slightly changing images one after another.

Juhani Lehtimaki09/06/12
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Tips for Android Tabs

Tabs are one of the most used and also most useful UI components of mobile UIs. They provide quick and easy access to different parts of the app. On Android apps tabs come in many forms.

Peter Pilgrim09/06/12
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Building ScalaFX 1.0 with Gradle 1.1

After becoming a little disenchanted with the SBT for Scala, I wanted an alternative that was more logical, simpler to understand and had a better user experience. After all, the whole point of a domain specific language is to make the writing of the script, formulae or grammar to be affordable to the users.

Erich Styger09/06/12
1 replies

Removing Blank Lines in Eclipse

Many times I end up using source files from somebody else. And such files might have a lot of empty lines in it I want to get removed. The question is: how to get rid of empty or blank lines in the Eclipse Editor view? Or even better: how to merge multiple empty lines into one?

Brent Stineman09/06/12
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Do You Really Need an SLA?

I sit to talk with clients about cloud and one of the first questions I always get is, "What is the SLA?" And I hate it.

Peter Zaitsev09/06/12
0 replies

6-year-old MySQL Bug is Finally Fixed in MySQL 5.6

I got the message in the morning today about the bug being fixed in MySQL 5.6.6…. which I reported in Early 2006 (while still being with MySQL) and running MySQL 4.1.