Hi All,
"This report provides an overview of Enterprise JavaBeans (EJB)
technology, enabling readers to gain a quick understanding of essential
concepts."
Part 1: The history and goals of EJB architecture
"Part 1 looks at the history of EJB technology and some of the goals,
advantages, and technologies. In the interest of brevity and clarity,
this report presents selected key elements of EJB technology. Note that
while EJB components rely on several underlying Java services, such as
the Java Transaction Service, knowledge of these related technologies is
not necessary to use EJB components and realize their benefits."
http://www-106.ibm.com/developerworks/java/library/what-are-ejbs/part1/index.html
Part 2: EJB programming model
"Part 2 of this article explains the role of the Java interfaces and
classes that are needed to create an Enterprise JavaBean component. In
addition to coding the bean class itself, EJB developers must define a
home interface and a remote interface for the bean. Implementation
classes for these interfaces are typically generated by the container,
so deploying an EJB component is a cooperative effort between the
developer and the EJB container. Part 2 also differentiates the two
primary types of enterprise beans, session beans and entity beans, and
describes the relationship between the EJB container and the EJB server."
http://www-106.ibm.com/developerworks/java/library/what-are-ejbs/part2/index.html
Part 3: Deploying and using Enterprise JavaBeans components
"Part 3 of this article describes the deployment process for
Enterprise JavaBeans components, which is more than installation because
code generation is typically involved. Deployment also uses a special
deployment descriptor file, which supports parameters that govern
enterprise bean behavior, such as whether a bean requires transactions.
This feature of bean deployment supports the EJB goal of declarative, as
well as programmatic, specification of bean behavior. Part 3 also
contrasts the two primary types of persistence, bean-managed and
container-managed, and discusses the relationship of EJB components to
CORBA. A simple three-tier EJB application is also presented."
http://www-106.ibm.com/developerworks/java/library/what-are-ejbs/part3/index.html
Enjoy ... []�s
Spock
---------------------------------------------------------------------
Para cancelar a subscri��o, envie mensagem para: [EMAIL PROTECTED]
Para comandos adicionais, envie mensagem para: [EMAIL PROTECTED]
