... mapping, changing, 521 – 524 associationsdata binding and, 81– 82 GORM, overview of, 25 2 25 3one -to- many, 24 , 54–56, 521 , 522 – 523 one -to- one, 53–54many -to- many, 523 – 524 many -to- one, 81, 521 performance ... validation, 21 8 22 2dynamic transitions, 23 5 23 6prices for albums, providing, 20 9purchase, 20 8querying about CD purchase, 21 6 21 8recommendations, generating, 22 2 22 7recommendations, showing, 22 7 23 1validating ... tuningassociations, 27 8 28 1batch fetching, 28 1 28 2caching, 28 2 28 4inheritance strategies, 28 5overview of, 27 8querying fromcriteria queries, 25 7 26 1dynamic finders, 25 5 25 6HQL and SQL, 26 1 26 2overview...