Java Persistence API (EJB3.0) versus EJB2.1 Entity Beans – side by side comparison have a great article showing a side by side comparison of the Java Persistence API in EJB3.0 compared with EJB2.1 entity beans.

If you haven’t started coding with EJB3.0 yet, take a look at this article, because with the side by side comparison it really does show how much of a radical change for the better this new API is.

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