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Mastering Apex Programming

You're reading from   Mastering Apex Programming A Salesforce developer's guide to learn advanced techniques and programming best practices for building robust and scalable enterprise-grade applications

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Product type Paperback
Published in Nov 2023
Publisher Packt
ISBN-13 9781837638352
Length 394 pages
Edition 2nd Edition
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Author (1):
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Paul Battisson Paul Battisson
Author Profile Icon Paul Battisson
Paul Battisson
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Toc

Table of Contents (28) Chapters Close

Preface 1. Section 1: Triggers, Testing, and Security
2. Chapter 1: Common Apex Mistakes FREE CHAPTER 3. Chapter 2: Debugging Apex 4. Chapter 3: Triggers and Managing Trigger Execution 5. Chapter 4: Exceptions and Exception Handling 6. Chapter 5: Testing Apex Code 7. Chapter 6: Secure Apex Programming 8. Section 2: Asynchronous Apex
9. Chapter 7: Utilizing Future Methods 10. Chapter 8: Working with Batch Apex 11. Chapter 9: Working with Queueable Apex 12. Chapter 10: Scheduling Apex Jobs 13. Section 3: Integrations
14. Chapter 11: Integrating with Salesforce 15. Chapter 12: Using Platform Events 16. Chapter 13: Apex and Flow 17. Chapter 14: Apex REST and Custom Web Services 18. Chapter 15: Outbound Integrations – REST 19. Chapter 16: Outbound Integrations – SOAP 20. Chapter 17: DataWeave in Apex 21. Section 4: Apex Performance
22. Chapter 18: Performance and the Salesforce Governor Limits 23. Chapter 19: Performance Profiling 24. Chapter 20: Improving Apex Performance 25. Chapter 21: Performance and Application Architectures 26. Index 27. Other Books You May Enjoy

Common Apex Mistakes

In this chapter, we will cover common mistakes made when writing Apex code and the appropriate defensive programming techniques to avoid them. Before we begin to move into more advanced topics within the Apex language, it is important that first we ensure a common grounding by removing any common errors within our code. For some of you, this material may simply be a refresher or a reiteration of some practices. In general, these mistakes form the basis of many of the common exceptions and errors that I have seen in my time working with the Salesforce platform and so are worth addressing upfront. By the end of this chapter, you will hopefully be more aware of when these mistakes may occur within your code and be able to develop in a defensive style to avoid them.

In this chapter, we will cover the following topics:

  • Null pointer exceptions
  • Bulkification of Apex code to avoid governor limits
  • Hardcoding references to specific object instances
  • Patterns to deal with managing data across a transaction
You have been reading a chapter from
Mastering Apex Programming - Second Edition
Published in: Nov 2023
Publisher: Packt
ISBN-13: 9781837638352
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