Basic HTML version of Foils prepared July 6 99

Foil 17 Component-View / Container Responsibilities

From Object Web Computing Technologies CPS714 Computational Science Information Track -- June 16 99. by H. Timucin Ozdemir
1 The responsibilities of container are:
  • implementing persistence for entity beans with container-managed persistence,
  • providing javax.ejb.SessionContext for session beans and javax.ejb.EntityContext for entity beans. Context interfaces are used to obtain information from the container,
  • providing the JNDI context to keep the environment information for beans, and
  • handling transaction, security, and exceptions.
2 Beans are packaged and deployed with an ejb-jar file. This file includes class files for the implementation, remote interfaces and home interfaces. An ejb-jar file includes XML deployment descriptor defining the structural and application assembly information about the beans in the file.
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