Hibernate Quiz 4, Hibernate Online Test Series 4, Hibernate Mock Test

JDBC stands for Java Database Connectivity and provides a set of Java API for accessing the relational databases from Java program.

The SessionFactory is heavyweight object so usually it is created during application start up and kept for later use. You would need one SessionFactory object per database using a separate configuration file. So if you are using multiple databases then you would have to create multiple SessionFactory objects.

Session.delete() removes a persistent instance from the datastore.

The element maps the unique ID attribute in class to the primary key of the database table.

java.util.Collection property is mapped with a or element and initialized with java.util.ArrayList.

An employee can have multiple certificates and same certificate can be conferred to many employees. Such situation represents many-to-many association.

The first-level cache is the Session cache and is a mandatory cache through which all requests must pass. The Session object keeps an object under its own power before committing it to the database.

Nonstrict-read-write strategy makes no guarantee of consistency between the cache and the database. Use this strategy if data hardly ever changes and a small likelihood of stale data is not of critical concern.

Persistent objects are saved and retrieved through a Session object.