Session Bean Concepts
As stated earlier, the EJB specification defines a standard component-based architecture for performing the two primary server-side activities: business logic processing and data logic processing. To perform business logic processing, the EJB architecture defines a component model to develop transactional server-side components that can be easily deployed on any application server that supports the EJB architecture.
A session bean is a reusable piece of code residing on the server that performs processing on behalf of a client application. In a three-tier application, session beans reside on the middle tier and contain the business logic to process data residing in the back-end tier.
As you have seen in previous days, transaction ...
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