Annotation Overview

under construction

The annotations are useful generally to write least possible, this type of configuration is base on DRY principle.

DRY = Don't Repeat Yourself.

This means that the existing code is used as much possible to avoid a repetition in the configuration.
This type of configuration is very useful in case of hierarchy of classes.
For understand the power under this feature will be proposed a possible real case.

We will go to analyze this hierarchy:

                                     ________
                                     |      |
                                     | Role |
                                     |______|
                        ________________|_________________
                    ____|____        ___|____        ____|____
                    |       |        |      |        |       |
                    | Admin |        | User |        | Guest |  
                    |______ |        |______|        |_______|
               ________|_________           
         ______|_____    _______|_____
         |          |    |           |
         | DB Admin |    | Web Admin |
         |__________|    |___________|