Inversion of Control - Implementation Techniques

Implementation Techniques

Implementation techniques are influenced by the computer language used.

In Java there are several basic techniques to implement inversion of control. These are:

1. using a factory pattern
2. using a service locator pattern
3. using a dependency injection, for example:
   1. a constructor injection
   2. a setter injection
   3. an interface injection
4. using a contextualized lookup

In an original article by Martin Fowler, the first three different techniques are discussed. In a description about inversion of control types, the last one is mentioned. Often the contextualized lookup will be accomplished using a service locator.

More important than the applied technique, however, is the optimization of the purposes.