Java EE 8 Design Patterns and Best Practices

Explaining the business-object pattern

As the name suggests, a business object represents something in the real world and something associated with the business of the application. A business object is like an actor in an application use case. Examples of business objects include bank accounts, car insurance, college professors, students, employees, purchase orders, and payable or receivable accounts.

When it comes to simple applications with very little business complexity, that is, with few (or no) business rules, there may not be a need for a BO in the system. Better yet, a POJO entity that represents a database entity can be considered a BO. It is important to see the difference here. An entity or a POJO representative of an entity ...