What are the core interfaces of Hibernate framework?

3. What is the core interfaces of hibernate?

• Session interface -this is the primary interface used by hibernate applications.
• SessionFactory interface-this is a factory that delivers the session objects to hibernate application.
• Configuration interface-this interface is used to configure and bootstrap hibernate.

What are the important interfaces used in hibernate?

The core interfaces of Hibernate framework are: Configuration. SessionFactory. Session.

Which of the following are not core interfaces of Hibernate framework?

Which of the following is not a core interface of Hibernate? Explanation: SessionManagement is not a core interface of Hibernate. Configuration, Criteria, SessionFactory, Session, Query and Transaction are the core interfaces of Hibernate.

What are the extension interfaces that are there in hibernate?

Extension interfaces

• Primary key generation ( IdentifierGenerator interface)
• SQL dialect support ( Dialect abstract class)
• Caching strategies ( Cache and CacheProvider interfaces)
• JDBC connection management ( ConnectionProvider interface)

What is N 1 Select problem hibernate?

N+1 problem is a performance issue in Object Relational Mapping that fires multiple select queries (N+1 to be exact, where N = number of records in table) in database for a single select query at application layer. Hibernate & Spring Data JPA provides multiple ways to catch and address this performance problem.

What is Threadsafe in Hibernate framework in Java?

Originally Answered: How do I make hibernate session thread safe? SessionFactory is Hibernates concept of a single datastore and is threadsafe so that many threads can access it concurrently and request for sessions and immutable cache of compiled mappings for a single database.

What is proxy object in hibernate?

A proxy is a subclass implemented at runtime. Hibernate creates a proxy (a subclass of the class being fetched) instead of querying the database directly, and this proxy will load the “real” object from the database whenever one of its methods is called.

Which of the following is not a core component of Hibernate *?

JDBC is not a core component of Hibernate.

Does Hibernate support polymorphism?

Ans :Yes ,Hibernate support polymorphism. Polymorphism queries and association is supported through mapping strategies.

What is SessionFactory in hibernate?

SessionFactory is an Interface which is present in org. hibernate package and it is used to create Session Object. It is immutable and thread-safe in nature. buildSessionFactory() method gathers the meta-data which is in the cfg Object.

What is Hql in hibernate?

Hibernate Query Language (HQL) is an object-oriented query language, similar to SQL, but instead of operating on tables and columns, HQL works with persistent objects and their properties. HQL queries are translated by Hibernate into conventional SQL queries, which in turns perform action on database.

What are the core interfaces used in hibernate?

Hibernate Core Interfaces. The five core interfaces are used in just about every Hibernate application. Using these interfaces, you can store and retrieve persistent objects and control transactions. The Configuration object is used to configure hibernate. The application uses a Configuration instance to specify the location…

What is session interface in hibernate?

Session Interface – This is the primary interface used by hibernate applications. The instances of this interface are lightweight and are inexpensive to create and destroy. Hibernate sessions are not thread safe. ii. SessionFactory Interface – This is a factory that delivers the session objects to hibernate application.

What isquery and criteria interface in hibernate?

Query and Criteria interface : The queries from the user are allowed by this interface apart from controlling the flow of the query execution. What are the core interfaces of Hibernate framework?

What is configuration in hibernate?

1. Configuration: The Configuration object is used to configure hibernate. The application uses a Configuration instance to specify the location of mapping documents and Hibernate-specific properties and then create the SessionFactory. 2. Transaction: A transaction represents a unit of work.