Hibernate Mock Test Series 2, Hibernate Quiz, Hibernate Online Test

JDBC is not a core component of Hibernate.

SessionFactory object configures Hibernate for the application using the supplied configuration file and allows for a Session object to be instantiated. The SessionFactory is a thread safe object and used by all the threads of an application.

A new instance of a a persistent class which is not associated with a Session and has no representation in the database and no identifier value is considered transient by Hibernate.

Session.get returns the persistent instance of the given named entity with the given identifier, or null if there is no such persistent instance.

The element within the id element is used to automatically generate the primary key values. Set the class attribute of the generator element is set to native to let hibernate pick up either identity, sequence or hilo algorithm to create primary key depending upon the capabilities of the underlying database.

element is used to define one-to-one association.

query level cache is an optional cache.

All of the above are true with respect to ORM vs JDBC.

Persistent objects are saved and retrieved through a Session object.

Hibernate supports named parameters in its HQL queries. HQL supports a range of aggregate methods, similar to SQL.