Standard interceptors ?

intercept.groovy

class Decorated {
  
  @Intercepted(MyInterceptor.class)
  def intercepted(String something) {
    println "within method"
  }
  
}

class MyInterceptor implements Interceptor {
  @Override
  def before(def theObject, Method theMethod, List args) {
    println "before $theMethod.name"
  }
  
  @Override
  def after(def theObject, Method theMethod, List args) {
    println "after $theMethod.name"
  }
}