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Hibernate is a Java framework that simplifies the development of Java application to interact with the database. It is an open source, lightweight, ORM (Object Relational Mapping) tool. Hibernate implements the specifications of JPA (Java Persistence API) for data persistence.
Web Application with Hibernate (using XML) Example to create web application using hibernate. Here, we are going to create a web application with hibernate. For creating the web application, we are using JSP for presentation logic, Bean class for representing data and DAO class for database codes.
The Hibernate architecture is categorized in four layers. Java application layer; Hibernate framework layer; Backhand api layer ; Database layer; Let's see the diagram of hibernate architecture: This is the high level architecture of Hibernate with mapping file and configuration file.
Hibernate Lifecycle for beginners and professionals with inheritance mapping, collection mapping, HQL, HCQL, Named Query, Caching and Integration of Hibernate with other frameworks.
Hibernate Annotations are based on the JPA 2 specification and supports all the features. All the JPA annotations are defined in the javax.persistence package. Hibernate EntityManager implements the interfaces and life cycle defined by the JPA specification.
For creating the first hibernate application, we need to follow the following steps: Create the Persistent class. Create the mapping file for Persistent class. Create the Configuration file. Create the class that retrieves or stores the persistent object. Load the jar file.
Hibernate and Spring Integration. We can simply integrate hibernate application with spring application. In hibernate framework, we provide all the database information hibernate.cfg.xml file. But if we are going to integrate the hibernate application with spring, we don't need to create the hibernate.cfg.xml file.
Hibernate Inheritance Mapping Tutorial. There are three stategies for mapping inheriance relation in hibernate, table per class hierarchy, table per concrete class and table per subclass. Let's see the examples of all the strategies.
Hibernate Configuration File for beginners and professionals with inheritance mapping, collection mapping, component mapping, HQL, HCQL, Named Query, Caching and Integration of Hibernate with other frameworks.
Hibernate Query Language (HQL) is same as SQL (Structured Query Language) but it doesn't depends on the table of the database. Instead of table name, we use class name in HQL. So it is database independent query language.
