Chapter 19. Basic EJB Architecture
In the previous chapter, we examined the common problems that all scalable applications must address. Now that you have a firm understanding of the issues at hand, we will begin to demonstrate how EJBs solve these problems. In the three years since we wrote the first edition of Enterprise Java Programming with IBM WebSphere, several things have changed on the Java development landscape. When we wrote the first edition, EJBs were a brand-new technology (the specification was at the 1.0 level). Few developers had encountered EJBs, and even those that had used the technology were not necessarily familiar with all of its capabilities.
Now as we write this, the commonly accepted version of the EJB specification is ...
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