List the key components of Hibernate.
Hibernate is a popular Object-Relational Mapping (ORM) framework for Java that simplifies database interactions. Here are the key components of Hibernate:
Configuration:
Configuration
class is used to configure Hibernate settings, including database connection properties and mapping files.SessionFactory:
SessionFactory
is a thread-safe object that is created once and used to create Session
instances. It is responsible for creating Session
objects and managing the connection to the database.Session:
Session
is a single-threaded, short-lived object that represents a conversation between the application and the database. It is used to perform CRUD operations and manage the persistence context.Transaction:
Transaction
interface is used to manage database transactions. It allows you to begin, commit, and roll back transactions.Query:
Query
interface is used to create and execute HQL queries.Criteria API:
Entity:
Mapping:
Interceptor:
Event System:
Caching:
Batch Processing:
These components work together to provide a robust framework for managing database interactions in Java applications, making it easier to work with relational data in an object-oriented manner.