hibernate

CRUD Operations in Hibernate 4.3

CRUD operations are Create(save), Read(select), Update(update) and Delete(delete).

Examples discussed here need to be tried out on top of the lab done @  http://javajee.com/lab-your-first-hibernate-43-program.

 

Session

Select, Save, update and delete operations in hibernate should be called within a session:

 SessionFactory sessionFactory = new Configuration().configure().buildSessionFactory();

[Lab] Your First Hibernate 4.3 Program

We will write a simple hibernate application to get started with hibernate.

Before starting, you should:

Downloading Hibernate 4.3 Jar Files

Hibernate 4 jars can be downloaded from the SourceForge web site at http://sourceforge.net/projects/hibernate/files/hibernate4 or from http://hibernate.org/orm/downloads/.  If this url doesn’t work or get changed, just search ‘hibernate 4 jars download sourceforge’ in Google.  The distribution version downloaded here is 4.3.11. Except for the version numbers, the jar names and folder structure should be same across any version of hibernate4 distribution.  

 

Hibernate 4.3 Essentials

This note book will help you to get started with Hibernate 4 like setting up environment, inheritance, mappings, HQL and the Criterial API. 

All the examples in this book is tested with Hibernate version 4.3.11.

Please refer to the hibernate references section to see the reference books that we use for learning and training purposes.

Querying Using Criteria API in Hibernate

Hibernate provide Criteria Queries as an object-oriented alternative to HQL. Criteria Query is used to modify the objects and provide restriction for the objects. Many complex queries in HQL or even SQL may become larger over a period of time and spread over many lines; and will be difficult to update and maintain. We have already seen HQL in http://www.javajee.com/introduction-to-hibernate-query-language-hql-0.

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