Table BigDecimal column doesn't show numbers after comma


I have a Table with a BigDecimal column

myTable.addContainerProperty("sum", BigDecimal.class,  null);

The problem is that if the value is lets say 100 it shows in the table as 100 but I need it to be 100.00

Changing BigDecimal.class to String.class is not an option because table must be sortable by this BigDecimal column.

Thanks for any help!

is answer for my own question.