March 2002
Intermediate to advanced
464 pages
8h 51m
English
book
Enterprise JavaBeans™ Component Architecture: Designing and Coding Enterprise Applications
by Gail Anderson, Paul Anderson
Content preview from Enterprise JavaBeans™ Component Architecture: Designing and Coding Enterprise Applications
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4.1. Session Beans and JDBC
Suppose a record store wants to provide users with a way to display recordings from their Music Collection database. If the database is accessible from an EJB, recordings could be available on the web and from computers in the store. The Music EJB will be similar to our Loan EJB from the previous chapter. Using the J2EE architecture, Figure 4-1 shows the design approach.
Figure 4-1. Architectural Overview of the Music Collection Enterprise Application
On the database server machine, the Music EJB accesses the Music Collection database in read-only mode. Music EJB is a stateless session bean because it does not perform ...
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