By Andrew Lee Rubinger
Find out how to code, package deal, install, and try out sensible firm JavaBeans with the most recent variation of this bestselling consultant. Written via the builders of JBoss EJB 3.1, this e-book not just brings you up to the mark on each one part style and box carrier during this implementation, it additionally presents a workbook with numerous hands-on examples that will help you achieve fast adventure with those parts.
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Extra info for Enterprise JavaBeans 3.1, 6th Edition
Definitions EJBs are composed from the following. Bean implementation class (session and message-driven beans) This class, written by the bean provider, contains the business logic for a session or message-driven bean. MessageDriven. } is all that’s needed to declare an SLSB. Bean instance (session and message-driven beans) The EJB Container internally contains one or more instances of the bean implementation class to service session or message-driven invocations. These are not exposed to the client, but are instead abstracted out by way of the client view.
1 Specification, page 29): The Enterprise JavaBeans architecture is a [sic] architecture for the development and deployment of component-based business applications. Applications written using the Enterprise JavaBeans architecture are scalable, transactional, and multi-user secure. These applications may be written once, and then deployed on any server platform that supports the Enterprise JavaBeans specification. More simply rewritten: Enterprise JavaBeans is a standard server-side component model for distributed business applications.
This is especially useful for performing system-wide initialization or governing a process from a sole authority.