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Card 54 / 59: What are 3 advantages of CMP Entity beans
A)
POJO persistence–in JPA, persistent objects are POJOs.
B)
Object-relational mapping is completely metadata-driven.
C)
The persistence API exists as a separate layer form the persistent objects and does not intrude upon them.
D)
CMP Entity beans require programmers to write sql statements specific to the underying database thus offering performance advantages.
E)
You can no longer configure persistence features through the ejb deployment descriptor, but only using annotations.
Answer:
A) POJO persistence–in JPA, persistent objects are POJOs.
B) Object-relational mapping is completely metadata-driven.
C) The persistence API exists as a separate layer form the persistent objects and does not intrude upon them.
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Enterprise JavaBeans
Author:
JavaChamp TeamSenior Java Developer
QuizOver.com
Germany
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Christophoros Lam...
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