Spring with Generics Collection

[deepak carter]

Hi All,

I have written a small program for list using spring framework.This is what i have written

Context file

<?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="collectionspring" class="org.springtest.SpringCollection">
		<property name="address1">
			<list>
				<ref bean="address12" />
				<value>dehradun</value>
				<value>Uttarakhand</value>
			</list>
		</property>
	</bean>
	<bean id="address12" class ="org.springtest.Address">
			<property name="address1" value="Bangalore" />
	</bean>
	</beans>

two files are there for address setting

package org.springtest;

public class Address
{
	private String address1;

	public String getAddress1() {
		return address1;
	}

	public void setAddress1(String address1) {
		this.address1 = address1;
	}
	
}

package org.springtest;

import java.util.List;

public class SpringCollection
{
	List<Address> address1;

	public List<Address> getAddress1() {
		return address1;
	}

	public void setAddress1(List<Address> address1) {
		this.address1 = address1;
	}

}

and my MAIN CLASS..

package org.springtest;

import java.util.Iterator;
import java.util.List;

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

public class SpringCollectionTest
{
	public static void main(String[] args)
	{	List i;
		ApplicationContext context=new ClassPathXmlApplicationContext("bean.xml");
		SpringCollection sc=(SpringCollection)context.getBean("collectionspring");
		System.out.println(sc.getAddress1());
		
		

	}

}

However its throwing an error


Can anyone help me in this regard

[Mark Spritzler]

Yes, you are trying to add two Strings to a Collection that only takes Address objects. This would throw an exception in Java without Spring.

<value>someString</value>

Why would you expect otherwise?

Mark