Basic HTML version of Foils prepared May 19 99

Foil 9 EJB Components

From Enterprise Javabeans Basic Information Track Computational Science Course CPS616 -- Spring Semester 1999. by Nancy McCracken
1 Database is source of potential objects
2 EJB technology takes these objects to a multi-tier environment
3 Two models for building enterprise applications:
  • Session model: the client begins a session with an object that acts like an application, executing a unit of work on behalf of the client, possibly including multiple database transactions.
  • Entity model: the client accesses an object that represents an entity in the database.
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