Archive for May 2010
Announcing the Salesforce Handbook
Recently, Jeff Douglas and I saw the potential for a beginner’s book – aimed at business owners, analysts and developers, that comprehensively documents Salesforce and Force.com. There is a tonne of documentation out there and we thought “Wouldn’t it be nice to have a handbook that lightly summarised the most important areas of the platforms as well as offering some best practise advice”. We mulled it over for a time, and today we’d like to announce that we’re currently writing:
The Salesforce Handbook
A newcomer’s guide to building applications on Salesforce.com and the Force.com Platform.
Hand-in-hand with the book we’ll be publishing content from the book on a WordPress site. Here you can expect to find excerpts from the book, but also content that supplements the book e.g. areas that’ll serve as best-practice hubs with links to official documentation, blog posts that rock the party, and even superb discussion forum threads.
We’d love to get your feedback on the book as it progresses, but for now you can checkout the announcement and let us know what you think of the idea.
GWT: Common Exceptions – NoClassDefFoundError
This seems to be a problem that nearly everyone hits when starting with GWT. It causes confusion because the code is error free at compile time, yet throws a java.lang.NoClassDefFoundError exception at runtime. The problem is simple to correct.
The JAR-file(s) must be in the correct directory and listed in the build path.
You’ll probably have included the required library into your build path already and that’s why you’re not getting compile time errors. The additional step that is to have the JAR-file(s) that contain the required libraries be copied to your project’s war/WEB-INF/lib directory. Note that your JAR-files must exist in the root of this directory, and not in any sub-directories.
Salesforce: Using basic email templates from Apex code
A few weeks ago I noticed a number of questions in the forums around how to use email templates from Apex classes. I Googled a few keywords and come up with very little. I then trawled the documentation but came up empty-handed. Eventually it was Eclipse that provided the knowledge required, and I thought I’d share it with the good ol’ developer community.
One part of the process is discovering that Salesforce stores all sorts of items as records in objects; some of them being email templates, user information and even Apex class bodies (scandalous). All you have to do is query them. The other major part is finding that the method you need is missing from the Apex documentation.
Force.com vs GAE + GWT
Salesforce could be regarded as the cloud computing leader but history tells us that many-a-giant has fallen before. Apple has; Microsoft has; IBM has. I think Salesforce is still on the up ‘n up, but there are contenders out there and some of them are noteworthy; probably the most obvious of these is Google. Over the past few months I’ve dug into the Google cloud platform and I thought it was time to attempt a side-by-side comparison of my two favourite PaaS providers.
The bigger they are ...
Some quick definitions are probably in order:
Force.com is a cloud computing platform as a service offering from Salesforce, the first of its kind allowing developers to build multi tenant applications that are hosted on their servers as a service.
Google App Engine is a platform for developing and hosting web applications in Google-managed data centers.
Google Web Toolkit (GWT) is an open source set of tools that allows web developers to create and maintain complex JavaScript front-end applications in Java. Read the rest of this entry »
The Silver Lining 