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JPA in Enterprise Applications: Building Domain Models and Entity Operations

Learn Java Persistence API (JPA) for enterprise class applications, creating domain models, performing entity operations, and using Query Language ORM. Explore EntityManager, Metamodel, and best practices. Includes examples and exercises.

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JPA in Enterprise Applications: Building Domain Models and Entity Operations

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Presentation Transcript

  1. Java Persistence API Maciej Adamiak

  2. Agenda Entity, EntityOperations, Query Language

  3. ORM

  4. JPA in anenterpriseclassapplication

  5. Providers

  6. JPA Entity EntityManager EntityManagerFactory PersistenceContext Metamodel

  7. EntityManagerFactory Example Definition

  8. Exercise I - Configuration

  9. Entity

  10. CommonEntityAnnotations

  11. Exercise II – creating a domain model Layer • POI, • AltitudePoint, • PathNode • Car • Polygon (Area) • UrbanArea, • GreenArea • ... Line View

  12. EntityManager Example Definition

  13. Transaction Example Definition

  14. Entityoperations

  15. Exercise III – entityoperations

  16. MetaModel/ CanonicalMetamodel Example Definition

  17. JPQL I

  18. JPQL II Pathvariable @Entity In BNF: select_statement:: = select_clausefrom_clause [where_clause] [groupby_clause] [having_clause] [orderby_clause]

  19. Criteria API Example Definition

  20. Exercise III – entityoperations

  21. FinalExercise

  22. Bibliography Pro JPA 2;Mike Keith, Merrick Schincariol Head First: Design Patterns;Eric Freeman, Elisabeth Freeman JSR 317: JavaTMPersistence API, Version 2.1

  23. www.tt.com.pl

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