Now we know, in some depth, about the injections of the Java components and how to use them in WildFly. All Java enterprise components work with CDI to be injected or built. CDI Implementations are a good standalone framework, but they also provide a base to work with the other Java enterprise components. This chapter has introduced you to components that we will see in all of the following chapters. We are now ready for the next chapter, where we will see the Java persistence.