this.getResult().setModifyedByAndDate();
this.getResult().setModifiedByAndDate();
    public void setRole(ResultParticipationRole role) {	if (role==null) {	    throw new DomainException("error.researcher.ResultEventAssociation.role.null");	}	if(!this.getRole().equals(role)) {	    if (!this.getResult().hasPersonParticipationWithRole(this.getPerson(), role)) {		super.setRole(role);		this.getResult().setModifyedByAndDate();	    } else {		throw new DomainException("error.researcher.ResultEventAssociation.association.exists",			this.getPerson().getName(), this.getRole().toString());	    }	}    }