Updating Composite-id Object

Before continuing, I use appfuse-spring-hibernate, FYI. Ok, I already had Financial object with composite keys that I generate directly from my Pojo, now I get error if I update a record of it.

It's just said that it failed to convert from String to FinancialPk. And when I debug it, in FinancialFormController, it never enter the onSubmit method, there's same error when in processFormSubmission method.

This error is happened for two days, I already browse the net, asked some people, but still don't get the answer, so I encourage myself to ask to JUG, thank's I've got little and expensive clue: PropertyEditor, so here's the steps, because it make me easier when I wrote it in walktrough style :

• I need bind the id type in initBinder method in FInancialFormController, that error says that system cannot convert String to FinancialPk type. So I add it together with Date type and numbers type.
• Before that I need to override the getAsText and setAsText, methods from PropertyEditor.
  
• First I made FinancialPk implements PropertyEditor and add those methods, and I wrote in initBinder: binder.registerCustomEditor(FinancialPk.class, new FinancialPk()); but it results an error.
• So, I browse the net and I need new class called FinancialPkSupport that extends PropertyEditorSupport which is an adapter of PropertyEditor interface, make a constructor that have one parameter: Class pkClass. And ofcourse, override those to methods.
• And then in inintBinder in FinancialFormController I add this line: binder.registerCustomEditor(FinancialPk.class, new FinancialPkSupport(FinancialPk.class));

Here's my FinancialPkSupport:

public class FinancialPkSupport extends PropertyEditorSupport {
private Class pkClass;

public FinancialPkSupport() {}
public FinancialPkSupport(Class pkClass) {
this.pkClass = pkClass;
}

public String getAsText() {
Object value = getValue();
return value == null ? "" : ((FinancialPk) value).dimChartaccount.getAccountKey() + "," +
((FinancialPk) value).dimCurrency.getCurrencyKey() + "," +
((FinancialPk) value).dimLocation.getLocationKey() + "," +
((FinancialPk) value).dimTime.getDimensionKey();
}

public void setAsText(String string) throws IllegalArgumentException {
FinancialPk f = new FinancialPk();
StringTokenizer token = new StringTokenizer(string);
f.setDimChartaccount(new DimChartaccount(Long.valueOf(token.nextToken(","))));
f.setDimCurrency(new DimCurrency(token.nextToken(",")));
f.setDimLocation(new DimLocation(token.nextToken(",")));
f.setDimTime(new DimTime(Long.valueOf(token.nextToken(","))));
if (f == null) {
throw new IllegalArgumentException("FinancialPk is null: " + string);
}
setValue(f);
}
}

And here's my initBinder:
protected void initBinder(HttpServletRequest request, ServletRequestDataBinder binder) {
binder.registerCustomEditor(FinancialPk.class, new FinancialPkSupport(FinancialPk.class));

SimpleDateFormat specFormat = new SimpleDateFormat(Constants.DATE_FORMAT);
binder.registerCustomEditor(Date.class, new CustomDateEditor(specFormat,true));

NumberFormat nf = NumberFormat.getNumberInstance(request.getLocale());
nf.setMaximumFractionDigits(Integer.parseInt(Constants.MAX_FRAX_DIGITS));
binder.registerCustomEditor(Double.class, null,new CustomNumberEditor(Double.class, nf, true));
binder.registerCustomEditor(Long.class, null,new CustomNumberEditor(Long.class, true));
}

And good bye frustating error!!