beans.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-3.0.xsd">
 
    <bean id="apple" class="Apple" />
    <bean id="juicer" class="Juicer">
        <constructor-arg ref="apple" />
        <constructor-arg ref="peeler" />
    </bean>
    <bean id="peeler" class="Peeler">
        <constructor-arg ref="apple" />
    </bean>
</beans>

beans_prototype.xml

<!-- ... -->
<bean id="juicer" class="Juicer" scope="prototype">
<!-- ... -->

Classes.java

public interface Fruit {
    void eat();
    String getName();
}

public interface Peelable {
    void peel();
}

public class Apple implements Fruit, Peelable {
    public void peel() { }
    public void eat() { }
    String getName() { return "apple"; }
}

public class Peeler {
    private final Peelable peelable;
 
    public Peeler(Peelable peelable) {
        this.peelable = peelable;
    }
}

public class Juicer {
    private final Peelable peelable;
    private final Peeler peeler;
 
    public Juicer(Peelable peelable, Peeler peeler) {
        this.peelable = peelable;
        this.peeler = peeler;
    }
}

MainAppPrototype.java

public class MainAppPrototype {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("beans_prototype.xml");
        Juicer j1 = context.getBean(Juicer.class);
        Juicer j2 = context.getBean(Juicer.class);
        System.out.println(j1 == j2);
    }
}

MainAppSingleton.java

public class MainAppSingleton {
    public static void main(String[] args) {
        ApplicationContext context = new ClassPathXmlApplicationContext("beans.xml");
        Juicer j1 = context.getBean(Juicer.class);
        Juicer j2 = context.getBean(Juicer.class);
        System.out.println(j1 == j2);
    }
}