How to use

setOwningSide

method

in

org.grails.datastore.mapping.model.types.Association

protected void configureOwningSide(Association association) {
  PersistentEntity associatedEntity = association.getAssociatedEntity();
  if(associatedEntity == null) {
    association.setOwningSide(true);
  }
  else {
    if (association.isBidirectional()) {
      if (associatedEntity.isOwningEntity(association.getOwner())) {
        association.setOwningSide(true);
      }
    }
    else {
      if (association instanceof OneToOne) {
        if (associatedEntity.isOwningEntity(association.getOwner()))
          association.setOwningSide(true);
      } else if (!(association instanceof Basic)) {
        if (associatedEntity.isOwningEntity(association.getOwner())) {
          association.setOwningSide(true);
        }
        else {
          association.setOwningSide(false);
        }
      }
    }
  }
}