5
Application Service Layer
If your application were considered a living organism, the Service layer would be its beating heart. Regardless of how the environment and the things that interact with it change over time, it must remain strong and be able to adapt. In this chapter, we begin our journey with the three coding patterns – Service, Domain, and Selector – that were introduced in Chapter 4, Apex Execution and Separation of Concerns.
In this chapter, we will review the Service layer pattern as set out by Martin Fowler and then review how this has been applied to the Salesforce Platform in Apex, describing design guidelines born from the separation of concerns we defined in the previous chapter.
One concern of this layer is interacting with ...
Get Salesforce Platform Enterprise Architecture - Fourth Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
