Component Mapping In Hibernate with XML

If we want to store one class object at a value of another class object, then we use component mapping.

To use Component mapping the two classes should  have 'has-a' relation between
them.

In hbm file to map a Component to a table of a database then we have
<Component> tag.

Ex : public class Employee{
     
int id;
String name;
Address address;
                  }

class Address{
int hno;
String street;
String city;
}


hbm file:

======================================
<hibernate-mapping>
    <class name="hibernate1.Student" table="finalst">
        <id name="id"></id>
        <property name="name"></property>
        <component name="address">
            <property name="hno"/>
  <property name="street"/>
            <property name="city"/>
        </component>
      
    </class>
 </hibernate-mapping>
=====================================