public class CreatePro 
{
     String ProductId;
     public CreatePro(String ProductId)	
     this.ProductId = ProductId;
}
 
public static Product creation_Product(String productId) 
{	
     System.out.println("Bean Created");
     if ("aaa".equals(productId)) 
     {
        return new Battery("AAA", 2.5);
     } 
     else if ("cdrw".equals(productId)) 
     {
	return new Disc("CD-RW", 1.5);
     }
 
}
 
  <beans ...>
	<bean id="aaa" class="CreatePro"
	factory-method="createProduct">
	<constructor-arg value="aaa" />
	</bean>
	<bean id="cdrw" class="CreatePro"
	factory-method="createProduct">
	<constructor-arg value="cdrw" />
	</bean>
  </beans>
  slight change in XML file:-
 
<bean id="aaa" factory-bean="productCreator"
factory-method="createProduct">
<constructor-arg value="aaa" />
</bean>
<bean id="cdrw" factory-bean="productCreator"
factory-method="createProduct">
<constructor-arg value="cdrw" />
</bean>

A)

      public abstract class Product {
	public static final Product AAA = new Battery("AAA", 2.5);
	public static final Product CDRW = new Disc("CD-RW", 1.5);
	...
      }
      <beans ...>
	<bean id="aaa" class="org.springframework.beans.factory.config.
	FieldRetrievingFactoryBean">
	<property name="staticField">
	<value>com.shop.Product.AAA</value>
	</property>
	</bean>
	<bean id="cdrw" class="org.springframework.beans.factory.config.
	FieldRetrievingFactoryBean">
	<property> name="staticField"
	valuecom.shop.Product.CDRW/value
	</property>
	</bean>
     </beans>
 
   B) Product aaa = com.shop.Product.AAA;
      Product cdrw = com.shop.Product.CDRW;