4.2.2.3 EJB: Enterprise
Java Beans
The EJB specification intends to provide a standard way to
implement the back-end 'business' code typically found in enterprise
applications. Enterprise JavaBeans were intended to handle such common concerns
as persistence, transactional integrity, and security in a standard way,
leaving programmers free to concentrate on the particular problem at hand.
Accordingly, the EJB specification details how an
application
server provides:
Transaction
processing, Integration with the
Persistence services
offered by the
Java Persistence
API (JPA),
Events using
Java Message
Service,
Deployment of
software
components in an application server, Exposing business methods as
Web Services...
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