apex-enterprise-patterns

Salesforce Apex applications are structured using fflib enterprise patterns that separate logic into Service, Domain, Selector, and UnitOfWork layers, enabling scalable architecture and consistent domain-driven behavior across multiple sObjects.

Mocking Apex classes for unit testing is achieved through the fflib Application factory, which wires dependencies and allows test classes to inject mock implementations of Domain, Selector, and Service layers.

You need fflib patterns for complex Salesforce deployments requiring scalable architecture, structured layering, testability, and consistent DML batching orchestration across multiple sObjects.

The Apex UnitOfWork pattern manages DML by orchestrating consistent database transactions and batching operations, ensuring that record updates across domain layers are committed or rolled back together.

Yes, Apex enterprise patterns can be applied to existing Salesforce implementations by progressively wiring services with the Application factory, Domain constructors, and Selector base to refactor logic into structured layers.