Best practices for developing enterprise beans

Use the following guidelines when designing and developing enterprise beans:

• Use a stateless session bean to act as the entry point for business logic. For more information about using session facades, see "Resources for learning."

• Entity beans should use container-managed persistence.

• In an Enterprise JavaBeans (EJB) V2.0 environment, use local interfaces to improve communication between enterprise beans in the same Java virtual machine.

  Local calls avoid the overhead of RMI/IIOP and use pass-by-reference semantics instead of pass-by-value. For each call, the caller and callee beans share the state of arguments. EJB 2.0 beans can have both a local and remote interface but more typically have one or the other.

• For communicating with remote clients, provide remote and remote home interfaces. For communicating with local clients like servlets, entity beans, and message-driven beans, provide local and local home interfaces.

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Batch commands for container managed persistence
Deferred Create for container managed persistence
Explicit invalidation in the Persistence Manager cache

Using enterprise beans in applications

Enterprise beans: Resources for learning
    

 

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