Spring Set Factory

In this tutorial you will learn about spring set factory and also see the how set is used in spring framework.

In this tutorial you will learn about spring set factory and also see the how set is used in spring framework.

Spring Set Factory

Ths SetFactoryBean is a simple factory for shared Set instance. The set element is defined in the xml bean definitions. The setSourceSet method set the source Set which is written in xml list element. The SetTargetSetClass method set the class to use target Set.

Week.java

package list.factory.example;

import java.util.Set;

public class Week {
	private Set days;

	public List getDays() {
		return days;
	}

	public void setDays(Set days) {
		this.days = days;
	}

	@Override
	public String toString() {
		return "Days [lists=" + days + "]";

	}
}

AppMain.java

package list.factory.example;

import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class AppMain {
	public static void main(String[] args) {
		ApplicationContext context = new ClassPathXmlApplicationContext(
				new String[] { "context.xml" });
		Week weekday = (Week) context.getBean("week");
		System.out.println(weekday);
	}
}

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" xmlns:aop="http://www.springframework.org/schema/aop"

  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">



  <bean id="week" class="set.factory.example.Week">

    <property name="days">

      <bean class="org.springframework.beans.factory.config.SetFactoryBean">

        <property name="targetSetClass">

          <value>java.util.HashSet</value>

        </property>

        <property name="sourceSet">

          <list>

            <value>Monday</value>

            <value>Tuesday</value>

            <value>Wednesday</value>

            <value>Thursday</value>

            <value>Friday</value>

            <value>Saturday</value>

            <value>Sunday</value>

          </list>

        </property>

      </bean>

    </property>

  </bean>



</beans>

When you run this application it will display message as shown below:

Days [lists=[Saturday, Thursday, Monday, Tuesday, Wednesday, Friday, Sunday]]

Download this example code

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