For one of our projects, we use a GWT client that needs to be updated in near-real time (< 1 second delay) when something relevant happens on the server. There are multiple ways of doing it, but I tried to get it working with the new Servlet 3 feature: Asynchronous Http Request handling. Read on […]
For my Junit test I wanted to make use of Matchers.everyItem so I could easily check if every item of a list machtes a certain matcher. Resulting in a small line of code which is nice to read.
Last saturday, february 5th, FOSDEM 2011 hosted the DataDevRoom where talks were given on topics surrounding data analysis with free and open source software. I was there and gave an introductory talk on clustering with Apache Mahout. In case you missed the conference, read on to learn about some of the talks or checkout the […]
About a week a go I wrote a blog post on gridshore about the NOS open data API. Most of the technical items are explained in that post. In this post I want to tell you about the small library I have created around the NOS open data REST based API. With this client it […]
Every application needs logging, it can help you during development and when debugging those annoying things that do not work in production. One question is where to put the logging events. All linux servers use a system log to log events that take place on the operating system level. You can find logs for the kernel, […]
If you have been happily using Easymock for the past years, this blog post is for you. Because you need to upgrade to Mockito, the new kid on the block in the mocking universe. Why bother about what mocking framework you’re using to create your unittests? Because it will improve you tests, make them more […]
I recently had a chance to actually use the new Bean Validation spec. in one of my projects. As the developer of the Bean Validation Framework for Spring (part of the springmodules project) it of course feels a bit weird to ditch all the work I’ve done, but at the same time, it also feels […]
Having used the Spring MVC 2.5 webframework for a while now, I felt the urge to blog about some of the experiences I had with it. Especially about the part concerning forms, validation, binding and property editors. That’s the part that was usually provided to you by the SimpleFormController (in the ‘old’ Spring MVC). But […]
I was looking a long time on how to set the prefix for a namespace when marshalling an object to xml using JAXB. If you don’t do anything JAXB will write random namespace prefixes (like ns2, ns3).? Note: This is a repost of a blog item that was originally posted in the Func knowledge base […]
EasyMock2 is a library that provides an easy way to create on-the-fly mock objects based on interfaces. It can be used in combination with JUnit to create simple and powerful unit tests. Here’s an overview of the basic EasyMock flow, followed by a brief example that demonstrates a new feature in EasyMock 2.4: capturing arguments passed to MockObjects.