[jboss-user] [JBoss Seam] - Re: f:converter and maxdigits

[damianharvey]

I had a similar problem today but was getting IllegalArgumentExceptions and ClassCastExceptions. For anyone interested below is a basic Float Currency converter. You use it like this:
  | <h:inputText id="myvalue" converter="#{floatCurrencyConverter}" value="#{mybean.myFloatValue}"/>

  | import java.text.NumberFormat;
  | 
  | import javax.faces.component.UIComponent;
  | import javax.faces.context.FacesContext;
  | 
  | import org.jboss.seam.annotations.Name;
  | import org.jboss.seam.annotations.faces.Converter;
  | import org.jboss.seam.annotations.intercept.BypassInterceptors;
  | 
  | @Name("floatCurrencyConverter")
  | @BypassInterceptors
  | @Converter
  | public class FloatCurrencyConverter implements javax.faces.convert.Converter {
  | 
  | 	public Object getAsObject(FacesContext context, UIComponent cmp, String value) {
  | 		NumberFormat nf = NumberFormat.getCurrencyInstance();
  | 
  | 		try {
  | 			return new Float(nf.parse(value).floatValue());
  | 		} catch(java.text.ParseException e) {
  | 			e.printStackTrace();
  | 			return null;
  | 		}
  | 	}
  | 
  | 	public String getAsString(FacesContext context, UIComponent cmp, Object value) {
  | 
  | 		NumberFormat nf = NumberFormat.getCurrencyInstance();
  | 		return nf.format(value);
  | 	}
  | }
  | 
Cheers,

Damian.

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