Registering new bean classes in grails application programmatically by registerBeanDefinition

As part of amazing goodies of grails is the ability to extend your applications - registering new classes problematically is a breeze

GenericApplicationContext context = new GenericApplicationContext();

context.setParent(applicationContext);
/* OR */
context.setParent(grailsApplication.mainContext);

// Create class from string
Class clazz = new GrailsAwareClassLoader().parseClass(classString);

// First create a bean definition
def myBeanDef = new GenericBeanDefinition()

// Set bean class
myBeanDef.setBeanClass(clazz)

// Set scope
myBeanDef.setScope(BeanDefinition.SCOPE_SINGLETON)

context.registerBeanDefinition("beandefName", myBeanDef);