I have an interface that returns a class containing common classes. But where do I define the class? What I want is something like: public interface Foo { String getName(); FooType getFoo(int a ...

Enabling frameworks to define classes as non-discoverable implementation details of the framework, so they cannot be linked against by other classes, or discovered via reflection.

The core idea behind JPA as opposed to JDBC, is that for the most part, JPA lets you avoid the need to “think relationally.” In JPA, you define your persistence rules in the realm of Java code ...

Over time, they will better understand which functions to group together in a single Java class, and which components to separate through an easily integrated interface. When you correctly balance ...