Wednesday, February 28, 2007

Java EE best practices

A recent article in IBM developerworks discusses best practices in Java EE development. This is an update of the 2004 article on J2EE best practices. Here's the complete list:
  1. Always use MVC.
  2. Don't reinvent the wheel.
  3. Apply automated unit tests and test harnesses at every layer.
  4. Develop to the specifications, not the application server.
  5. Plan for using Java EE security from Day One.
  6. Build what you know.
  7. Always use session facades whenever you use EJB components.
  8. Use stateless session beans instead of stateful session beans.
  9. Use container-managed transactions.
  10. Prefer JSPs as your first choice of presentation technology.
  11. When using HttpSessions, store only as much state as you need for the current business transaction and no more.
  12. Take advantage of application server features that do not require your code to be modified.
  13. Play nice within existing environments.
  14. Embrace the qualities of service provided by the application server environment.
  15. Embrace Java EE, don't fake it.
  16. Plan for version updates.
  17. At all points of interest in your code, log your program state using a standard logging framework.
  18. Always clean up after yourself.
  19. Follow rigorous procedures for development and testing.
  1. Top Java EE Best Practices
  2. The top 10 (more or less) J2EE best practices

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