public FormInputValidator fileExists (VisValidatableTextField field, String errorMsg) {
		FileExistsValidator validator = new FileExistsValidator(errorMsg);
		field.addValidator(validator);
		add(field);
		return validator;
	}
public FormInputValidator fileExists ( VisValidatableTextField field , String errorMsg ) { FileExistsValidator validator = new FileExistsValidator ( errorMsg ) ; field . addValidator ( validator ) ; add ( field ) ; return validator ; }
Validates if absolute path entered in text field points to an existing file.