Support different programming models

Current service implementation is based on strategy pattern extending different framework base action classes.
It would be great to support other programming models that allow to instantiate services by other means (for example annotated methods in a class)

Suggested by @bessemHmidi

Start by reviewing the current service implementation, strategy pattern, and framework base action classes. Determine how an alternative model such as annotated methods would be instantiated and exposed, then define the supported programming models and verify that existing service behavior remains compatible.

Written by the indexing model from the issue text.