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Article:
  POJO Application Frameworks: Spring Vs. EJB 3.0
Subject:   Misses the mark on Spring
Date:   2005-07-03 22:49:17
From:   MichaelYuan
Response to: Misses the mark on Spring

Like I said, if you need to assemble your own app services, then Spring is a better choice, as each EJB 3 implementation is optimized for a special app server for better performance and user experience. But I disagree that unit testing is an advantage for Spring -- the new generation of lightweight EJB 3 containers makes in-container testing easier (and of course more accurate) than using mocks -- give it a try!


In the case of your Spring application, yes, you have managed to create Spring-independent "business service" classes (IMHO, EJB 3 session bean POJOs are a lot simpler). But I am sure your application as a whole still has various dependencies on Spring (XML and helper classes). You might be well justified to have faith in Spring vendor. But I am also right in claiming that Spring causes "vendor lock-in". :)

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  • Misses the mark on Spring
    2006-10-05 11:37:52  mrpantsuit [View]

    The whole point of unit testing is to test a single "unit", not "this unit + that unit". The need to test in a container is an indication of a flawed architecture.

    Mock testing w/ EasyMock is...well...easy.

    The only difference between a Spring bean and an EJB3 EJB is the addition of EJBE annotations. How does adding something make it simpler?

    I would recommend Spring2/Hibernate or Spring2/JPA for most apps and reserve EJB3 for very complex apps requiring vast scalability and distribution.