Configuration class

To load configuration xml, we need to create object of Configuration class, which is given in

org.hibernate.cfg.*; package and we need to call configuration() method in that class, by passing xml configuration file name as parameter in that method

Configuration (org.hibernate.cfg.Configuration)

The Configuration class object is the first Hibernate object you create in any Hibernate

application and usually created only once during application initialization

Configuration configurationObj = new Configuration();

configurationObj.configure(“hibernate.cfg.xml”);

Here our configuration file name is your choice, but by default we have been given hibernate.cfg.xml, so once this configuration file is loaded in our java app, then we can say that hibernate environment is started in our program.

So once we write the line configurationObj.configure(“hibernate.cfg.xml”),

configuration object configurationObj will reads this xml file

hibernate.cfg.xml, actually internally configurationObj will uses DOM parsers to read the file.

About the job of configurationObj

configurationObj will reads data from hibernate.cfg.xml

Stores the data in different variables

All these variables are grouped and create one high level hibernate object we can call as

SessionFactory object.

So Configuration class only can create its SessionFactory object