A Simple Configuration Manager Architecture

This is a simple configuration architecture I use for my small applications these days. I'm happy with it now.

I have

• A Singleton Application Manager, which represent the business layer of my application information.
• Configuration Manager is also a Singleton class, but not necessary to be Singleton. Application Manager is the only class which would have relationship with Configuration Manager. The later one is a reusable class, providing DAO implementations to XML based Properties accessing to configuration files.
• Configuration items are represented by POJO/JavaBeans, provided annotation on each field.
• Application Manager parses the configuration POJO and retrieve configuration items via Configuration Manager, and saves the POJO as configuration items via Configuration Manager.

Something more:

• A DAO layer.
• Spring
• Apache Configuration