Using Grails without a database
This posting describes the steps necessary to change your Grails project if you’re using Grails for frontend only, without direct database access.
All posts filed under: Software Engineering
Deprecation of ConfigurationHolder in Grails 2
While porting my Grails applications to 2.0 RC1, I recognized that ConfigurationHolder is now deprecated. The new way to access the configuration is through dependency injection of the grailsApplication bean. Before 2.0: With 2.0:
Grails cheat sheet
A little cheat sheet I created for learning purposes. Feel free to add your hints in the comments.
Learning Grails the hard way: Facebook Authentication
This posting shows how to implement Facebook authentication with Grails in two slightly different flavors.
Android Application Development Tips: Disabling scrollbars for WebView
Scrollbars for a WebView can be easily disabled from XML using the scrollbars attribute.
arcadiaCharts public alpha released
The wait has come to an end and it’s quite a relief to finally be able to write about (and promote) something I’ve been involved in my spare time, mainly in 2009 and partly in 2010 as well. In December 2008 I had the pleasure to meet members of the management board of element5, one of the world’s largest outsourcing partners for the software industry, who were just kicking off a new little project: a charting library for JavaScript and Java. My colleague Oliver created the GWT Canvas project which was used for the rendering and I designed most of the project architecture and laid grounds for the available chart types. Unfortunately I had to reduce my involvement in late 2009 due to other personal projects and more responsibilities in my day job and made way for Joern and Andreas as the current main developers, but I’m still part of the development team and a little proud to see the first alpha come to light. The first public release is an alpha version for testing …
Android Application Development Tips: Pull screenshot with ADB
For some reason, pulling screenshots in the DDMS view in Eclipse doesn’t always work. In that case, the following calls became handy (tested with HTC Hero): adb pull /dev/graphics/fb0 fb0 dd bs=1920 count=800 if=fb0 of=fb0b ffmpeg -vframes 1 -vcodec rawvideo -f rawvideo -pix_fmt rgb565 -s 320×480 -i fb0 -f image2 -vcodec png image.png More examples available at the source.
Android Application Development Tips: ADB server didn't ACK
If you’re working on Windows and have HTC Sync installed, you may run into this error message. I hardly develop under Windows anymore, but since the Android plugin was a little buggy on OSX, I had to. This message drove me nuts and I did a little research: with netstat -o I could see which process ID was occupying the port and with Process Explorer I could see that HTC Sync itself was the culprit. I killed it but this didn’t help until I hindered it completely from auto-starting and restarted my machine afterwards.
GWT 2.1 compilation issues on OSX
Today I experienced a compilation problem with GWT 2.1 and the Maven GWT plugin: I couldn’t really identify the origin of the problem, but scrapping the whole gwt Maven repository subdirectory and redownloading the 2.1.0 dependencies resolved the issue for me.
Facebook/Flattr/… Clickjacking Examples And How To Avoid It
This blog article discusses the risk of clickjacking when using social one-click-functionality established through embedded IFRAMEs, including two minimal examples for Facebook and flattr and an advice how to minimize the risk of getting clickjacked.