Spring prototype scope

[mallikarjun dontamsetti]

Hi i am learning spring framework i came across the scope in tutorial that i am reading it said that if we declare a scope as prototype spring container create a new object for that class each time. so i have written a program to test it but no luck. could any one please help me. My code is

Main class

public class DrawApp {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		
	
		ApplicationContext factory = new ClassPathXmlApplicationContext("spring.xml");
		
		Shape shape =(Shape) factory.getBean("circle");
		
		Point zeroPoint =(Point) factory.getBean("zeroPoint");
		zeroPoint.setMessage("first message");
		System.out.println(zeroPoint);
		
		shape.draw();
		
		shape.draw();
		Point point2 =(Point) factory.getBean("zeroPoint");
		point2.setMessage("second message");
		System.out.println(point2);
		shape.draw();
		
	}

}

Shape interface has a method draw() which is implemented by Circle class

public class Circle implements Shape {
	
	private Point center;

	public Point getCenter() {
		return center;
	}
	
	
	public void setCenter(Point center) {
		this.center = center;
	}

	@Override	
	public void draw() {
		System.out.println("Circle is drawn");
		System.out.println("Circle drawn at Point (" + center.getX() +", "+center.getY() +" )");
		System.out.println(center.getMessage());
		System.out.println("-----------"+center);
	}
	

}

Point class is fallow

   package org.malli;

public class Point {
	
	private int x;
	private int y;
	String s;
	
	public int getX() {
		return x;
	}
	public void setX(int x) {
		this.x = x;
	}
	public int getY() {
		return y;
	}
	public void setY(int y) {
		this.y = y;
	}
	
	public void setMessage(String s){
	   this.s = s;
	}

	public String getMessage(){
		return s;
	}
}

My spring configuration file is as fallows

<?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 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd" 
			xmlns:context="http://www.springframework.org/schema/context">
  <context:annotation-config /> 
	
<!-- 		<bean id="triangle" class="org.malli.Triangle" >
			<property name="pointA" ref="zeroPoint"/>
			<property name="pointB" ref="point2"/>
			<property name="pointC" ref="point3"/>
		</bean> -->
		
		<bean name="zeroPoint" id="zeroPoint" class="org.malli.Point" scope="prototype">
			<property name="x" value="0" />
			<property name="y" value="0" />
		</bean>
			<!-- <bean id="point2" class="org.malli.Point" >
			<property name="x" value="-20" />
			<property name="y" value="0" />
		</bean>
		<bean id="point3" class="org.malli.Point">
			<property name="x" value="20" />
			<property name="y" value="0" />
		</bean> -->
		<bean id="circle" class="org.malli.Circle" >
			<property name="center" ref="zeroPoint"/>
			
		</bean>
		
		
		
	</beans>

The bean references are printing

same (which should be different because it is prototype)

from sysout. And one more thing how to configure a bean(point) that i set a message specifically to it to the particular class(center).

[Mark Spritzler]

Bean circle is a Singleton, you have

<bean id="circle" class="org.malli.Circle" >
<property name="center" ref="zeroPoint"/>

</bean>

Which means the zeroPoint injected into that circle will be just one zeroPoint and always that same zeroPoint. It won't get a new one each time because Circle is created only once and its center property will only be set once. So therefore the life of the circle, which is the entire application duration will always point to the same zeroPoint assigned when it was created.

Mark