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Learning Apex Programming

You're reading from   Learning Apex Programming Create business applications using Apex to extend and improve the usefulness of the Salesforce1 Platform

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Product type Paperback
Published in Jan 2015
Publisher
ISBN-13 9781782173977
Length 302 pages
Edition 1st Edition
Languages
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Toc

Table of Contents (11) Chapters Close

Preface 1. Apex Assumptions and Comparisons FREE CHAPTER 2. Apex Limits 3. More and Later 4. Triggers and Classes 5. Visualforce Development with Apex 6. Exposing Force.com to the World 7. Use Case – Integration with Google Calendar 8. Creating a Property Management Application 9. Test Coverage Index

An exception to end all exceptions

As we mentioned earlier, when you break an Apex limit, the Salesforce1 Platform throws an exception. It's actually a special type of exception called LimitException. A LimitException is a fatal one that you cannot handle gracefully with a try-catch block. When LimitException is thrown, all processing immediately ceases. The exception is appended to the debug log and an e-mail is sent out to the developer of that Apex class. Have faith though, it might not be possible to catch LimitException, but it is very possible to avoid it.

Apex includes an entire class dedicated to listing and measuring limits. It's no coincidence that the name of this class is Limits. It includes two methods for every limit in Apex. One method is to get the maximum number allowed for a limit, and the other method is to get the number that has already occurred. You can use the combination of both of these types of methods to ensure you never exceed the actual limit. The best...

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