List of Figures

Chapter 1: Basic Concepts in JDO

Figure 1-1: The application's view of JDO

Figure 1-2: Transient relationship in memory created by the application

Figure 1-3: The relationship re-created in memory by JDO

Figure 1-4: Two application data objects referring to the same persistent state

Chapter 2: Queries

Figure 2-1: The class diagram of the Extent interface

Figure 2-2: The class diagram of the Query interface

Figure 2-3: Object model for a simple library

Chapter 3: The Persistence Manage

Figure 3-1: The class diagram of the PersistenceManager interface

Chapter 4: Transactions and Caching

Figure 4-1: The class diagram of the Transaction interface

Figure 4-2: The class diagram of the Synchronization interface

Figure 4-3: State transitions outside a transaction when NTR is true and NTW is false

Figure 4-4: State transitions outside a transaction when both NTR and NTW are true

Figure 4-5: State transitions common to all transactions

Figure 4-6: State transitions unique to datastore transactions

Figure 4-7: State transitions unique to optimistic transactions

Figure 4-8: State transitions upon commit when RetainValues is false

Figure 4-9: State transitions upon commit when RetainValues is true

Figure 4-10: State transitions upon rollback when RestoreValues is false

Figure 4-11: State transitions upon rollback when strong RestoreValues is true

Figure 4-12: State transitions upon rollback when weak RestoreValues is true

Figure 4-13: Additional state transitions when JDO supports the transient-transactional feature

Chapter 5: Enhanced Classes and Managed Fields

Figure 5-1: An inheritance tree that mixes enhanced and unenhanced classes

Figure 5-2: The XML elements of the JDO metadata

Chapter 6: Factories that Produce Persistence Managers

Figure 6-1: The class diagram of the PersistenceManagerFactory interface

Chapter 7: Helpers, Callbacks, and Exceptions

Figure 7-1: The class diagram of the JDOHelper class

Figure 7-2: The class diagram of the InstanceCallbacks interface

Figure 7-3: The class diagram of the JDOException class

Figure 7-4: The class hierarchy for JDO exceptions

Chapter 8: Using JDO to Learn More

Figure 8-1: The classes and interfaces of the StateTracker program

Chapter 9: Using JDO in a Swing Application

Figure 9-1: The Swing client on startup

Figure 9-2: The Swing client viewing available rentals

Figure 9-3: Jim and Mary with nonconflicting reservations

Figure 9-4: Mary's view after optimistic transaction failure

Figure 9-5: The class diagram of the prototype Customer class

Figure 9-6: The class diagram of the prototype Week class

Figure 9-7: The class diagram of the prototype Lighthouse class

Figure 9-8: The class diagram of the prototype Rental class

Figure 9-9: The class diagram of the ReservationService

Figure 9-10: The class diagram of the ReservationClientModel

Figure 9-11: The architecture of the rental Swing application

Chapter 10: Using JDO in a Web Application

Figure 10-1: The rental Web page when the customer is unknown

Figure 10-2: The rental Web page when the customer is Jim

Figure 10-3: Page showing Jim about to cancel one reservation and make another

Figure 10-4: Page showing Mary about to cancel one reservation and make another

Figure 10-5: Page showing an error after Mary attempted to reserve Nubble for the third week

Figure 10-6: Mary's Web page after recovering from the error

Figure 10-7: The MVC pattern in the rental Web application

Chapter 11: Using JDO in Enterprise JavaBeans

Figure 11-1: The deployed reservation service EJB

Appendix A: Large UML Diagrams

Figure 1-1: The application's view of JDO

Figure 2-1: The class diagram of the Extent interface

Figure 2-2: The class diagram of the Query interface

Figure 3-1: The class diagram of the PersistenceManager interface

Figure 4-1: The class diagram of the Transaction interface

Figure 4-2: The class diagram of the Synchronization interface

Figure 6-1: The class diagram of the PersistenceManagerFactory interface

Figure 7-1: The class diagram of the JDOHelper class

Figure 7-2: The class diagram of the InstanceCallbacks interface

Figure 7-3: The class diagram of the JDOException class

Figure 9-5: The class diagram of the prototype Customer class

Figure 9-6: The class diagram of the prototype Week class

Figure 9-7: The class diagram of the prototype Lighthouse class

Figure 9-8: The class diagram of the prototype Rental class

Figure 9-9: The class diagram of the ReservationService class

Figure 9-10: The class diagram of the ReservationClientModel class

Figure 10-7: The MVC pattern in the rental Web application

Figure 11-1: The deployed reservation service EJB