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Force.com Enterprise Architecture

You're reading from   Force.com Enterprise Architecture Architect and deliver packaged Force.com applications that cater to enterprise business needs

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Product type Paperback
Published in Mar 2017
Publisher Packt
ISBN-13 9781786463685
Length 504 pages
Edition 2nd Edition
Languages
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Author (1):
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Andrew Fawcett Andrew Fawcett
Author Profile Icon Andrew Fawcett
Andrew Fawcett
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Table of Contents (15) Chapters Close

Preface 1. Building, Publishing, and Supporting Your Application FREE CHAPTER 2. Leveraging Platform Features 3. Application Storage 4. Apex Execution and Separation of Concerns 5. Application Service Layer 6. Application Domain Layer 7. Application Selector Layer 8. User Interface 9. Lightning 10. Providing Integration and Extensibility 11. Asynchronous Processing and Big Data Volumes 12. Unit Testing 13. Source Control and Continuous Integration Index

Chapter 4. Apex Execution and Separation of Concerns

When starting to write Apex, it is tempting to start with an Apex Trigger or Apex Controller class and start placing the required logic in these classes to implement the desired functionality. This chapter will explore a different starting point, one that gives the developer focus on writing application business logic (the core logic of your application) in a way that is independent of the calling context. It will also explain the benefits that it brings in terms of reuse, code maintainability, and flexibility, especially when applying code to different areas of the platform.

We will explore the ways in which Apex code can be invoked, the requirements and benefits of these contexts, their commonalities, their differences, and the best practices that are shared. We will distill these into a layered way of writing code that teaches and embeds Separation of Concerns (SOC) in the code base from the very beginning. We will also introduce...

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