The below code shows the Initialization of criteria object:Ĭriteria criteria=session. The below code shows the initialization of Query object: Criteria objectsĪre also used to retrieve data from databases. Hibernate Query Language (HQL) to get data from the database. The and packageĬontains Query and Criteria interface, respectively. The commit() function is used to close the Transaction t=session.beginTransaction() The below code shows the creation of Transaction object: Provides the instruction to the database for transaction management. The object of the session creates a Transaction object. The below code shows the creation of Session object: It is used to executeĬRUD operations (insert, delete, update, edit). A SessionFactory object is used to create a Session object, which is It takes the JDBC information from cfg object and creates a The below code shows the creation of SessionFactory object: It is a threadsafe object and used by all the threads in the application. The package contains the SessionFactory interface whose object can be obtained by the object of Configuration class. It reads both mapping and configuration file. To activate the Hibernate Framework, we use the following TheĬonfiguration object is created only once during the application The package contains the ConfigurationĬlass, which consists of the properties and function files of Hibernate. Hibernateīefore the creation of the first Hibernate application, we must Previous Topic: Hibernate framework.Hibernate Tutorials Introduction to Hibernate Hibernate History Hibernate Features Hibernate Architecture Hibernate Session Factory Hibernate Session Hibernate Examples Hibernate First Example Hibernate Annotations Example Web Application Example Hibernate GeneratedValue Strategies Hibernate Dialects Hibernate Inheritance Mapping Single Table Strategy Table per Class Strategy Joined Table Strategy Hibernate Mapping Hibernate Mapping Hibernate One To One Mapping Hibernate One To Many Mapping Hibernate Many To One Mapping Hibernate Many To Many Mapping Hibernate Named Query Named Query using XML file Named Query using annotation Hibernate Caching Hibernate Caching First level Cache Second Level Cache Hibernate Query Language (HQL) Hibernate Query Language Hibernate Criteria Query Language (HCQL) Hibernate Criteria Query Language Misc N+1 SELECT problem in hibernate Dirty checking in hibernate Lazy loading Hibernate configuration Cascade in Hibernate Hibernate life cycle Inverse in Hibernate Merge in Hibernate Composite key in Hibernate Load() vs. Next Topic: Hibernate configuration file with example. It is used to define and execute the object oriented criteria queries. The Criteria object is created from the Session object. It uses SQL and HQL to perform database operations. The Query object is created from Session object. A transaction object represents an atomic unit of work. The Transaction object is created from Session object. It acts as a factory for Transaction, Query and Criteria. The session object is created from the SessionFactory object. It maintains the second level cache of the data. It acts as a factory for session objects and client for ConnectionProvider. It is thread-safe object and used by all threads of the application. The SessionFactory object is created from the Configuration object. Configuration object is used to create the object of SessionFactory. It mainly consist the information about database connection () and class mapping (.hbm.xml). Hibernate maps Java classes to database tables and from Java data types. It is a powerful, high performance Object-Relational Persistence and Query service for any Java Application. It is an open source persistent framework created by Gavin King in 2001. The configuration object consist the configuration file used by the hibernate. Hibernate is an O bject- R elational M apping (ORM) solution for JAVA. Core Components of Hibernate architecture:
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