How to set the property of Bean by constructor injection

This tip shows the way to set the property of the bean by constructor injection.

Code:

---

public class sample{
    String name;
    public sample(String a)
    {
        name = a;
    }   
}

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The following code is used for setting the property.

Code:

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<bean id="bean1"  class="sample">
<constructor-arg>
  <value>Sample Bean Value</value>
  </constructor-arg> 
</bean>

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But, it is not acceptable.
spring advised to set the value using setters and not by constructor :)