if (rule != null) {
LeftHandSide lhs = rule.getLeftHandSide();
lhstext.setText(lhs.toString());
RightHandSide rhs = rule.getRightHandSide();
classtext.setText(rhs.getAssignmentClassName());
rhstext.setText(rhs.getKeyPath());
if (rhs.getValue() == null) {
valuetext.setText("");
} else {
valuetext.setText(rhs.getValue());
}
prioritytext.setText(rule.getAuthor());
} else {