Session Beans

Stateless session beans: InterestCalculator allows us to test the following:

• Using and deploying a stateless session bean

• Calling a business method for calculations

Stateful session beans: BankTeller allows us to test the following:

• Looking up various interfaces using JNDI and initial contexts

• Using JDBC to perform database queries

• Using various transactional attributes on bean methods

• Using container-demarcated transactions

• Maintaining conversational state between calls

• Business methods acting as front-ends to entity beans (e.g., the “getAccountSummary()” method)