Spring -
Injecting Inner Beans as setter injection
package com.rk.inner;
public class Person {
private String name;
private Address address;
public Person() {
}
@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-Inner.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"
/>
<property name="address">
<bean class="com.rk.inner.Address">
<property name="area" value="dempier"
/>
<property name="city" value="mathura"
/>
</bean>
</property>
</bean>
</beans>
Use inner
class as “ref” property:
<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"
/>
<property name="address" ref="addressBean"
/>
</bean>
<bean id="addressBean" class="com.rk.inner.Address">
<property name="area" value="dempier"
/>
<property name="city" value="mathura"
/>
</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-Inner.xml"});
Person
cust = (Person) context.getBean("PersonBean");
System.out.println(cust);
}
}
Output: rajesh lives at area : dempier city: mathura
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