Generate JavaBean instance from Interfaces using CGLIB

test-generator-javabean.groovy

/**
 * Dynamically create a Javabean from Interfaces.
 * It's ugly, but works ;)
 * 
 */
@Grapes(@Grab(group='cglib', module='cglib', version='3.1'))
import net.sf.cglib.beans.*
import net.sf.cglib.proxy.*

interface Test {
	String getStr() 
	void setStr(String str) 
}
// create a class implement the interfaces
ClassLoader cl = this.getClass().getClassLoader()
Class concreteClass = Proxy.getProxyClass(cl, [Test.class] as Class[])
// create a super class implement the interfaces
Enhancer eh = new Enhancer()
eh.setInterfaces([Test.class] as Class[])
eh.setCallbackType(NoOp.class)
Class t1 = eh.createClass()
// put all together
BeanGenerator bg = new BeanGenerator()
BeanGenerator.addProperties(bg, concreteClass)
bg.setSuperclass(t1)
Test t = bg.create()
t.setStr("Hello")

println t.getStr()