Inject Spring inner bean as Constructor parameter

Spring - Injecting Inner Beans as constructor parameter

package com.rk.inner;

public class Person {

      private String name;

      private Address address;

      public Person(Address address) {

            this.address = address;

      }

      @Override

      public String toString() {

            return name +" lives at "+ address;

      }

     

      // setters and getters

}

public class Address {

      private String area;

      private String city;

      @Override

      public String toString() {

            return "area : "+area+" city: "+city;

      }

     

      // setters and getters

}

Use inner class as property:

Spring-Person-Constructor.xml

<beans xmlns="http://www.springframework.org/schema/beans"

      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

      xsi:schemaLocation="http://www.springframework.org/schema/beans

      http://www.springframework.org/schema/beans/spring-beans-2.5.xsd">

      <bean id="PersonBean" class="com.rk.inner.Person">

            <property name="name" value="rajesh" />

            <constructor-arg>

                  <bean class="com.rk.inner.Address">

                        <property name="area" value="dempier" />

                        <property name="city" value="mathura" />

                  </bean>

            </constructor-arg>

      </bean>

</beans>

import org.springframework.context.ApplicationContext;

import org.springframework.context.support.

ClassPathXmlApplicationContext;

public class TestInnerClass {

      public static void main( String[] args ) {

            ApplicationContext context =

            new ClassPathXmlApplicationContext(

            new String[] {"com/rk/inner/Spring-Person-Constructor.xml"});

            Person cust = (Person) context.getBean("PersonBean");

            System.out.println(cust);

      }

}

Output: rajesh lives at area : dempier city: mathura