Java EE revisits the Factory Pattern | alex.theedom

Java EE revisits the Factory Pattern | alex.theedom

CDI Framework

In Java EE we can take advantage of the CDI framework to create objects without knowing the details of their creation. The decoupling occurs as a result of the way Java EE implements inversion of control. The most important benefit this conveys is the decoupling of higher-level-classes from lower level classes. This decoupling allows the implementation of the concrete class to change without affecting the client: reducing coupling and increasing flexibility.

The CDI framework itself is an implementation of the factory pattern. The container creates the qualifying object during application start up and injects it into any injection point that matches the injection criterion. The client does not need to know anything about the concrete implementation of the object, not even the name of the concrete class is known to the client.

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