What are the Core Interfaces are of Hibernate Framework

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The core interfaces are used in just about every Hibernate application. Using these interfaces, you can store and retrieve persistent objects and control transactions.

  • Session interface
  • SessionFactory interface
  • Transaction interface
  • Query and Criteria interfaces

Hibernate is a popular object-relational mapping (ORM) framework for Java, and it provides several core interfaces that play key roles in its functionality. Here are some of the core interfaces of the Hibernate framework:

  1. Session: The Session interface is a runtime interface between a Java application and Hibernate. It provides methods for CRUD (Create, Read, Update, Delete) operations, as well as other operations like querying the database.
  2. SessionFactory: The SessionFactory interface is used to create sessions. It is a heavyweight object and should be instantiated once per application. The SessionFactory is responsible for managing the Hibernate Session objects.
  3. Configuration: The Configuration interface is used to configure and bootstrap Hibernate. It represents a configuration settings and properties that Hibernate will use to connect to the database.
  4. Transaction: The Transaction interface represents a single unit of work and abstracts the code from the underlying transaction management system (JTA or JDBC). It allows developers to control the boundaries of transactions.
  5. Query and Criteria: Hibernate provides two interfaces for querying the database – Query and Criteria. The Query interface allows you to execute HQL (Hibernate Query Language) queries, while the Criteria interface allows you to create and execute queries using a programmatic and type-safe approach.

These are some of the core interfaces in Hibernate, and understanding their roles and usage is crucial for working effectively with the framework.