Answers to Self-Review Exercises

27.1

  1. False. Table components are used to display data from databases.

  2. True.

  3. False. The CachedRowSetDataProvider is a property of the page bean. It wraps a CachedRowSet, which is stored in the SessionBean and executes SQL queries.

  4. False. The XMLHttpRequestObject is an object that allows asynchronous exchanges with a web server.

  5. True.

  6. False. You must call method refresh on the data provider to re-execute the SQL command.

  7. True.

27.2

  1. Asynchronous JavaScript and XML.

  2. commitChanges, CachedRowSetDataProvider.

  3. Geocoding Service Object.

  4. participants.

  5. Java BluePrints Ajax component library.

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