Summary

If today was your first exposure to EJB fundamentals, it probably seems theoretical and a bit overwhelming. Don't be alarmed. You'll be using these concepts for the rest of this book, and they will become familiar as you gain more experience using them.

Here is the summary of terms and concepts covered today.

A session bean executes a particular business task on behalf of a single client. An entity bean is a persistent business object. A message-driven bean allows clients to asynchronously invoke business logic.

Clients use the home interface to create, remove, and find Enterprise JavaBean instances. A client calls the methods defined in the component interface to invoke the business logic implemented by the Enterprise JavaBean.

The ...

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