code: public CrosstabBuilder addRow(String title, String property, String className, boolean showTotal) {
  		DJCrosstabRow row = new CrosstabRowBuilder()
  			.setProperty(property,className)
  			.setShowTotals(showTotal)
  			.setTitle(title)
  			.build();
  		addRow(row);
  		return this;
  	}
docs: {@linkplain CrosstabBuilder#addRow(DJCrosstabRow)}
  @param title
  @param property
  @param className
  @param showTotal
  @return