Overriding setter on domain class in grails 1.1.2

I have following two domain classes in Grails 1.1.2:

class A implements Serializable {
 MyEnumType myField
 Date fieldChanged

 void setMyField(MyEnumType val) {
  if (myField != null && myField != val) {
   myField = val
   fieldChanged = new Date()
  }
 }
}

class B extends A {
 List children
 void setMyField(MyEnumType val) {
  if (myField != null && myField != val) {
   myField = val
   fieldChanged = new Date()
   children.each { child 开发者_C百科-> child.myField = val }
 }
}

When I set B instance's myField, I get the setter into the cycle... myField = val line calls setter again instead of assiging the new value.

Any hint how to override the setter correctly? Thanks

Use the this keyword to avoid calling the getter or setter:

this.myField = val

See http://groovy.codehaus.org/Groovy+Beans#GroovyBeans-Propertyandfieldrules