For my example, I have provided a palette from which to drag & drop into, or alternatively use the File chooser, to select image files off your local file system. For this example, please select image files only, as I have not built in any filtering or error detection for non-graphical files.

In this article, I show you how to combine the dependency injection of the Spring framework effectively with aspects written using AspectJ 5. I assume you have a basic knowledge of AOP (although if you don't, you'll find some good starting points in the Resources section), so I'll begin my discussion by analyzing the key roles and responsibilities involved in a dependency injection-based solution. From there, I'll show you how to configure singleton aspects via dependency injection.