{
cmp = compareLists(textNodeStep1.getPredicates(), textNodeStep2.getPredicates());
}
break;
case TYPE_UNARY_EXPR:
UnaryExpr unaryExpr1 = (UnaryExpr)o1;
UnaryExpr unaryExpr2 = (UnaryExpr)o2;
cmp = compare(unaryExpr1.getExpr(), unaryExpr2.getExpr());
break;
case TYPE_UNION_EXPR:
if (true)
throw new RuntimeException("Not yet implemented!");
break;