April 2003
Intermediate to advanced
750 pages
16h 53m
English
Understanding what you as a bean developer would have to do to develop a meaningful entity bean means understanding the callback and life-cycle methods of the bean, and how this bean-container contract is enforced. This section describes various callback methods and the very basic life cycle of bean activation.
One of the fundamental concepts of entity beans is that they are pooled objects, that is, they are a type of enterprise bean that may be pooled, and reused by the EJB container. Instance pooling is a service of the container that allows the container to reuse bean instances, as opposed to creating new ones every time a request for a bean is made. This is a performance optimization that is done ...
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