title: How to format table values in vaadin?
body: <p>If I have an object with <code>BigDecimal</code> property, I want to display it in a <code>Table</code> with a specific formatting: 2 fractions, and a "+" or "-" sign according to the amount.</p>
  
  <p>Eg: <code>+10.50</code>, <code>-3.20</code></p>
  
  <p>How can this be achieved in a vaadin table? There is a method <code>table.setConverter(..)</code>, but this would actually force to convert between eg a <code>BigDecimal.class</code> and a <code>String.class</code>. What I'm more after is just a view formatter that just displays the object data differently.</p>