Hierarchical BeanFactory Demo : Xml Bean Factory « Spring « Java Tutorial

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Java Tutorial » Spring » Xml Bean Factory 
28.6.7.Hierarchical BeanFactory 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\nAge: %d\nAge in Seconds: %d\nHeight: %g\nIs Programmer?: %b",
        this.name, this.age, this.ageInSeconds, this.height, this.isProgrammer);
  }
}
  Download:  Spring-HierarchicalBeanFactoryDemo.zip( 2,600 k)
28.6.Xml Bean Factory
28.6.1.Xml Bean Factory Demo
28.6.2.Static Factory
28.6.3.Compare Beans From Factory Bean
28.6.4.Create XmlBeanFactory from ClassPathResource
28.6.5.BeanFactory Aware
28.6.6.Non Static Factory
28.6.7.Hierarchical BeanFactory Demo
28.6.8.Add BeanFactory PostProcessor To XmlBeanFactory
28.6.9.Add addBeanPostProcessor To XmlBeanFactory
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