Source Code : HierarchicalBeanFactory Demo

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HierarchicalBeanFactory Demo

       
File: injectdemo2-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.xsd">

    <bean id="name" class="java.lang.String">
        <constructor-arg value="My Value 1"/>
    </bean>

    <bean id="injectSimpleParent" class="InjectSimpleDemo">
        <property name="name" ref="name"/>
        <property name="age" value="2"/>
        <property name="height" value="0.8"/>
        <property name="isProgrammer" value="false"/>
        <property name="ageInSeconds" value="63072000"/>
    </bean>

</beans>


File: injectdemo3-context.xml

<?xml version="1.0" encoding="UTF-8"?>
<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.xsd">

    <bean id="name" class="java.lang.String">
        <constructor-arg value="My value"/>
    </bean>

    <bean id="injectSimpleChild" class="InjectSimpleDemo">
        <property name="name" ref="name"/>
        <property name="age" value="2"/>
        <property name="height" value="0.8"/>
        <property name="isProgrammer" value="false"/>
        <property name="ageInSeconds" value="63072000"/>
    </bean>

    <bean id="injectSimpleChild2" class="InjectSimpleDemo">
        <property name="name">
            <ref parent="name"/>
        </property>
        <property name="age" value="2"/>
        <property name="height" value="0.8"/>
        <property name="isProgrammer" value="false"/>
        <property name="ageInSeconds" value="63072000"/>
    </bean>

</beans>


File: Main.java

import org.springframework.beans.factory.xml.XmlBeanFactory;
import org.springframework.core.io.ClassPathResource;

public class Main {

  public static void main(String[] args) {
    XmlBeanFactory parent = new XmlBeanFactory(new ClassPathResource("injectdemo2-context.xml"));
    XmlBeanFactory child = new XmlBeanFactory(new ClassPathResource("injectdemo3-context.xml"), parent);

    System.out.println(parent.getBean("injectSimpleParent"));
    System.out.println(child.getBean("injectSimpleChild"));
    System.out.println(child.getBean("injectSimpleChild2"));  }
}

class InjectSimpleDemo {
  private String name;

  private int age;

  private float height;

  private boolean isProgrammer;

  private Long ageInSeconds;

  public void setAgeInSeconds(Long ageInSeconds) {
    this.ageInSeconds = ageInSeconds;
  }

  public void setIsProgrammer(boolean isProgrammer) {
    this.isProgrammer = isProgrammer;
  }

  public void setAge(int age) {
    this.age = age;
  }

  public void setHeight(float height) {
    this.height = height;
  }

  public void setName(String name) {
    this.name = name;
  }

  @Override
  public String toString() {
    return String.format("Name: %s
Age: %d
Age in Seconds: %d
Height: %g
Is Programmer?: %b",
        this.name, this.age, this.ageInSeconds, this.height, this.isProgrammer);
  }
}




           
       

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