Domain-Driven Design Annotations

This project includes a set of useful annotation for Java based Domain-Driven Design projects.

It also provides a Java Annotation Processor to enable compile-time structure verification of Java Code.

Of course it would be easy to create a Unit Test or whatever to enforce such rules, but hey? Why write a Unit Test if the same check can also be enforced at compile time? Fail early, fail fast :-)

Available Annotations

Annotation	Description
de.mirkosertic.ddd.annotation.Aggregate	Used to annotate Aggregates
de.mirkosertic.ddd.annotation.Entity	Used to annotate Entities
de.mirkosertic.ddd.annotation.Events	Used to annotate Events
de.mirkosertic.ddd.annotation.Factory	Used to annotate Factories
de.mirkosertic.ddd.annotation.Repository	Used to annotate Repositories
de.mirkosertic.ddd.annotation.Service	Used to annotate Services
de.mirkosertic.ddd.annotation.ValueObject	Used to annotate Value Objects

Implemented compile time validation

Value Objects

• Fields of Value Objects must be final
• Only classes can be Value Objects
• Only fields of type java.*, enums or other Value Objects are allowed