Spring-managed Hibernate Listeners with JPA
Update: now there’s a better way to do that. A standard use-case – you need an entity listener in order to execute some code on every update/insert/delete. For auditing, forContinue reading
Error pages and chunked encoding – it’s harder than you think
The other day I realized that my Tomcat is using chunked Transfer-Encoding (HTTP 1.1) by default. I don’t know about other servers/containers/frameworks/languages, but it is not uncommon to send pagesContinue reading
First Experience with the Google+ API
So, Google released an API for Google+. Sort of. It only has three methods – People.get, Activities.list and Activities.get. But let’s assume we can build something with this. Not somethingContinue reading
The Logging Mess
Every application needs logging. And right now there are a lot of options on what exactly to use for logging in Java. The most famous frameworks are: log4j, logback, commons-logging,Continue reading
How to Map Dates with Hibernate – Use joda-time
This is always a question – how to map temporal data in our hibernate entities – whether to use java.util.Date, java.util.Calendar or simply long. The correct answer is: neither ofContinue reading
Google App Engine and Maven
I created a small project that I wanted to host somewhere for free. Amazon free tier or Google App Engine? I already have experience with AWS, so I decided toContinue reading
How to Handle Project Configuration
Every web project needs some environment-specific configurations. Database credentials, root url, smtp settings, to name a few. It’s a recurring question on stackoverflow, and I’ve seen a lot of variationsContinue reading
What to Do With IDE Project Files
Each IDE generates its specific project/config/build files. Eclipse generates .project and .classpath, and also the .settings directory. IntelliJ IDEA has its .iml files. And it is always a question whatContinue reading
Describe Concepts in Comments
It’s common knowledge that commenting your code is a must. But that’s where the wrong interpretations come. “// incrementing i” above “i++” is one extreme example of useless comments, butContinue reading
Making Spring and Quartz Work Together Smoothly
Spring has quartz support. But as you can see it requires a lot of old-style xml mappings for each of the jobs you want to run. And it looks moreContinue reading