spring el example

The spring Expression Language can be used to set properties to the beans. Note that we can do this also using xml method. Lets see an example.

@Component
public class Computer{

          @Value("#{motherBoard}")// motherBoard bean is referenced to this variable
          private MotherBoard motherBoard;// mother board is a dependency to the computer
}

@Component("motherBoard")//this bean can be taken using name motherBoard in getBean method
public class MotherBoard{

           @Value("asus")//asus is assigned as the property for the variable type in MotherBoard class.
           private String type;
}

This can be also done using Bean declaration in xml files also.