how to provide constructor argument of class type

[sumurthy]

I am trying to use org.apache.mina.core.service.SimpleIoProcessorPool which takes IoProcessor type as argument like this.
SimpleIoProcessorPool<NioSession> pool =
new SimpleIoProcessorPool<NioSession>(NioProcessor.cla ss);

I don't know how to provide constructor arg for this class in my application context file. If I give class name as value, it is a String and is wrong.

<bean id="simpleIoProcessorPool" class="org.apache.mina.core.service.SimpleIoProces sorPool">
<constructor-arg value="NioProcessor.class"/>
</bean>

At the same time, if I give ref="nioprocessor" and define bean id with Executor service like below [ except I did not provide Executor in constructor arg to keep it short], then it is injecting the new instance of NioProcessor which is not what I want.
<bean id="simpleIoProcessorPool" class="org.apache.mina.core.service.SimpleIoProces sorPool">
<constructor-arg ref="nioProcessor"/>
</bean>

<bean id="nioProcessor" class="org.apache.mina.transport.socket.nio.NioPro cessor">
<constructor-arg></constructor-arg>
</bean>

thank you,

[pratikbhavsar]

The following works:

ClassConstructor.java

public class ClassConstructor {

	public ClassConstructor(Class clazz)
	{
		System.out.println(clazz.getCanonicalName());
	}
	
}

DefaultClass.java

public class DefaultClass {

}

applicationContext.xml

<bean id="classConstructor" class="com.example.ClassConstructor">
		<constructor-arg type="java.lang.Class" value="com.example.DefaultClass"></constructor-arg>
	</bean>

[sumurthy]

Thank you, that works very well.