Overview of Persistence Technologies

The second main topic for today is persistence options and a look at some of the Java technologies available in this space. At this point, you might be thinking that this is a moot point; after all, you saw yesterday and on Day 6 how to develop Entity beans, so what else is there to address?

In response to that question, consider the following two points. First, on Day 6 you saw that BMP Entity beans used JDBC to access the database. However, there are other technologies that may involve less work and could even lend themselves to automatic code generation, or indeed, support persistence transparently. Second, many J2EE applications will not use EJBs. There are many successful J2EE enterprise applications ...

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