ControlsFX complex validation - validation

Question

I need to validate simple JavaFX form with password and password confirmation.
validationSupport.registerValidator(passwordInput,
Validator.createEmptyValidator("Password required!"));
validationSupport.registerValidator(confirmPasswordInput,
new EqualsToValidator(passwordInput.textProperty(),
"Password differs from confirmation"));
In EqualsToValidator I simply compare property.getValue() and value passed to validator.
If I change only password EqualsToValidator is not called because it is listening to confirmPasswordInput not passwordInput.
I have only found ugly solution:
passwordInput.textProperty().addListener((observable, oldValue, newValue) -> {
String oldText = confirmPasswordInput.getText();
confirmPasswordInput.setText(null);
confirmPasswordInput.setText(oldText);
});
How to invalidate one field when another field changes?

Answer 1

My implementation
Validator.java - base class for validator.
TextValidator.java and PasswordValidator.java - implementations.
ValidationSupport.java tracks all validators.
Usage:
validationSupport.addValidator(new TextValidator(usernameInput, "Username is required!"));
validationSupport.addValidator(new TextValidator(passwordInput, "Password is required!"));
validationSupport.addValidator(new PasswordValidator(passwordInput, confirmPasswordInput, "Password differs from confirmation"));

Answer 2

This worked for me. I simply copied the ValidationSupport class and added the folowing code.
#SuppressWarnings("unchecked")
public <T> void reaplyValidator(Control target){
if(!controls.containsKey(target)){
throw new NullPointerException("The given control was not registered");
}
ValueExtractor.getObservableValueExtractor(target).map( e -> {
ObservableValue<T> observable = (ObservableValue<T>) e.call(target);
Validator<T> validator = (Validator<T>) controls.get(target);
Platform.runLater(() -> validationResults.put(target, validator.apply(target, observable.getValue())));
dataChanged.set(true);
return e;
});
}
public void revalidate(){
for(Control c : getRegisteredControls()){
reaplyValidator(c);
}
}
You also need to change the controls Set to a Map in order to keep the validator.
private ObservableMap<Control, Validator<?>> controls = FXCollections.observableMap(new HashMap<>());