VolatileOverview.md

Volatile Implementation Overview

• Author: Sébastien Mosser mosser@i3s.unice.fr

• Reviewer: Anne-Marie Déry pinna@polytech.unice.fr

• Version: 02.2016

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Interfaces are defined in the main package, as classical Java interfaces. Components are implemented in the components sub-package, in classes with Bean postfixed names. When a component refers to another one according to a provides/requires association, the component implementation refers to the associated Interface instead of the concrete implementation to ensure decoupling.

The Cart component is implemented twice, first as a Stateful bean, and then as a Stateless one (in the cart sub-package).

As there is no persistent backend, we mocked the persistence layer using a Singleton bean named Database. It stores all the necessary data in static maps. We'll se in the next section how to remove this mock and use a real persistence layer thanks to EJB Entities.

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