code: @Override
  	public SqlEntityQuery<E> desc(final String... cols) {
  		for (String col : cols) {
  			this.sortOrders.add(new SortOrder(col, Order.DESCENDING));
  		}
  		return this;
  	}
docs: {@inheritDoc}
  
  @see jp.co.future.uroborosql.fluent.SqlEntityQuery#desc(java.lang.String[])