New Google App Engine SDK 1.4.0 released with major improvements
Google App Engine team has rolled out a major release for this year. In release of 1.4.0 they have done a lot of improvements and increased limits. I am very…
How to use and retain Twitter4J OAuth access token
I was stuck in a problem that how to re use access token, once user has authenticated by Twitter (on call back URL). I got it working. There was problem…
Useful cheat sheets on Cloud Computing and Google App Engine for Java
Just read cheat sheets (Refcard) by Dzone on Cloud Computing and Google App Engine for Java. They contain a very jumped to the point and quick reference on these things….
Got two books on Google App Engine for Java
Recently I got two books on Google App Engine for Java. Programming Google App Engine by Oreilly and Beginning Google App Engine by Apress. There is less material and comprehensive…
Spoken on Google App Engine at a conference in UET
Today I had delivered a workshop on Developing Java Web Applications In Google App Engine. This workshop was the part of events of 3rd International Conference on Open Source Systems…
Tutorial: JPA on Google App Engine
This project will create and delete an entity record. I have chosen JPA for datastore in app engine. You can also look JDO for this purpose. But my choice to…
Upgrading to Google App Engine Java SDK 1.2.8
I was getting following exception while trying to code my first interaction with JPA in Google App Engine. After some searching I came to know that I should upgrade my…
Determine whether application is running on local server or App Engine
If you are working on developing some application on Google App Engine. You may come up with such situation to switch your production code with your local dev code. Following…
Domain is not working without www prefix in GAE
The current issue I am working on is to make my naked domain http://mydomain.com to redirect to http://www.mydomain.com in Google App Engine. With www prefix I have configured my domain….
How to avoid DeadlineExceededException in Google App Engine
If you are developing web application on Google App Engine for Java. And you dont know what this exception is. You can be in trouble. The container throws this exception…