Use toPlainString()
BigDecimal d = new BigDecimal("600.0").setScale(2, RoundingMode.HALF_UP).stripTrailingZeros();
System.out.println(d.toPlainString()); // Printed 600 for me
I’m not into JSF (yet), but converter might look like this:
@FacesConverter("bigDecimalPlainDisplay")
public class BigDecimalDisplayConverter implements Converter {
@Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
throw new BigDecimal(value);
}
@Override
public String getAsString(FacesContext context, UIComponent component, Object value) {
BigDecimal bd = (BigDecimal)value;
return bd.setScale(2, RoundingMode.HALF_UP).stripTrailingZeros().toPlainString();
}
}
and then in xhtml:
<h:inputText id="bigDecimalView" value="#{bigDecimalObject}"
size="20" required="true" label="Value">
<f:converter converterId="bigDecimalPlainDisplay" />
</h:inputText>