Uso de Scope Basico en Spring

Muestra el uso del scope singleton y prototype en spring

Librerias

 spring.jar
 commons-logging.jar

Interface IPrototype

package org.dracof.spring.scope;

public interface IPrototype {}

Interface ISingleton

package org.dracof.spring.scope;

public interface ISingleton {}

Implementacion de IPrototype

package org.dracof.spring.scope.impl;

import org.dracof.spring.scope.IPrototype;

public class ClasePrototypeImpl implements IPrototype{
 public ClasePrototypeImpl() {
  System.out.println("Creando nueva instancia de ClasePrototypeImpl!");
 }
}

Implementacion de ISingleton

package org.dracof.spring.scope.impl;

import org.dracof.spring.scope.ISingleton;

public class ClaseSingletonImpl implements ISingleton {
 public ClaseSingletonImpl() {
  System.out.println("Creando nueva instancia de ClaseSingletonImpl!");
 }
}

applicationContext.xml

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

<!DOCTYPE beans PUBLIC "-//SPRING/DTD BEAN/EN" "http://www.springframework.org/dtd/spring-beans-2.0.dtd">

<beans>

 <!-- Por default es singleton -->
 <bean id="claseSingleton" 
  class="org.dracof.spring.scope.impl.ClaseSingletonImpl"
   scope="singleton"/>
 
 <bean id="clasePrototype" 
  class="org.dracof.spring.scope.impl.ClasePrototypeImpl"
  scope="prototype"/>

</beans>

Clase de prueba

package org.dracof.spring.test;

import org.dracof.spring.scope.IPrototype;
import org.dracof.spring.scope.ISingleton;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class PruebaScope {
 public static void main(String[] args) {
  ApplicationContext context = new ClassPathXmlApplicationContext("applicationContext.xml");
  
  ISingleton claseSingleton1 = (ISingleton)context.getBean("claseSingleton");
  ISingleton claseSingleton2 = (ISingleton)context.getBean("claseSingleton");
  ISingleton claseSingleton3 = (ISingleton)context.getBean("claseSingleton");

  IPrototype clasePrototype1 = (IPrototype)context.getBean("clasePrototype");
  IPrototype clasePrototype2 = (IPrototype)context.getBean("clasePrototype");
  IPrototype clasePrototype3 = (IPrototype)context.getBean("clasePrototype");
 }
}  

Salida

Creando nueva instancia de ClaseSingletonImpl!
Creando nueva instancia de ClasePrototypeImpl!
Creando nueva instancia de ClasePrototypeImpl!
Creando nueva instancia de ClasePrototypeImpl!

Descargar proyectito
ScopeSpring.zip

Suerte.