2.5. Validation information
As a validation information carrier, hibernate provide an array of
InvalidValue. Each InvalidValue has many methods describing the individual issues.
getBeanClass() retrieves the failing bean type
getBean()retrieves the failing instance (if any ie not when using getPotentianInvalidValues())
getValue() retrieves the failing value
getMessage() retrieves the proper internationalized error message
getRootBean() retrieves the root bean instance generating the issue (useful in conjunction with @Valid), is null if getPotentianInvalidValues() is used.
getPropertyPath() retrieves the dotted path of the failing property starting from the root bean
