using @Required and @Autowired and @Qualifier

[pavand]

Can we use @Required and @Autowired and @Qualifier on the same setter method.

When I try to use in the below mentioned way I have getting compile time error saying "The annotation @Qualifier is disallowed for this location"

public class Customer
{
    private Person person;
    private int type;
    private String action;

    @Qualifier("PersonBean1")
    @Autowired()
    @Required()
    public void setPerson(Person person)
    {
	this.person = person;
    }

//setter and getters for type,action
}

My configuration file is

<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
	xsi:schemaLocation="http://www.springframework.org/schema/beans 
	    http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
		http://www.springframework.org/schema/context 
		http://www.springframework.org/schema/context/spring-context-2.5.xsd">

	<context:annotation-config/>

	<bean id="CustomerBean" class="Customer">
		<property name="action" value="buy" />
		<property name="type" value="1" />
	</bean>

	<bean id="PersonBean" class="Person">
		<property name="name" value="mkyong" />
		<property name="address" value="address 123" />
		<property name="age" value="28" />
	</bean>

	<bean id="PersonBean1" class="Person">
		<property name="name" value="mkyong" />
		<property name="address" value="address 123" />
		<property name="age" value="28" />
	</bean>
</beans>

Could anyone explain why this cannot be done ?

[Marten Deinum]

Because @Qualifier is only allowed on fields and attributes not methods (you need to put it on the method attribute). This is also explained in the reference guide (which I suggest as a must read).