Q. Which concrete exception in the DataAccessException hierarchy should be thrown?

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Q. Error code for The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint.

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Q. How does the Spring JDBC framework know that state 23505 should be mapped to DuplicateKeyException?

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Q. Class which represents a real-world entity and its instances will be persisted to a database.

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Q. Each entity class to be persisted by an ORM framework, a default constructor with no argument is required.

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Q. If the identifier value is null, this entity will be treated as a new and unsaved entity.

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Q. To allow the identifier to be null, you should choose a primitive wrapper type:-

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Q. A set of persistent annotations for you to define mapping metadata.

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Q. For mapping and persisting your objects with Hibernate and JPA.

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Q. Core Programming Elements for Different Data Access Strategies.

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Q. Interface whose instances can be obtained from a SessionFactory instance.

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Q. Interface whose instances can be obtained from an EntityManagerFactory instance.

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Q. The exceptions thrown by Hibernate are of type HibernateException, while those thrown by JPA may be of type PersistenceException.

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Q. To accept a session factory via dependency injection.

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Q. Property for factory bean to load the Hibernate configuration file.

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Q. If you want to use this data source for your session factory, you can inject it into the dataSource property of LocalSessionFactoryBean.

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Q. FactoryBean to create an entity manager factory in the IoC container.

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Q. It allows you to override some of the configurations in the JPA configuration file.

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Q. Spring HibernateTemplate can simplify your DAO implementation by managing sessions and transactions for you.

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Q. An alternative to Spring HibernateTemplate is:-

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