Class StringConverter.IdentityConverter

  • Enclosing class:
    StringConverter

    public static class StringConverter.IdentityConverter
    extends StringConverter
    Converter that does nothing - it returns the input unchanged
    • Constructor Detail

      • IdentityConverter

        public IdentityConverter()
    • Method Detail

      • convert

        public ConversionResult convert​(AtomicValue input)
        Description copied from class: Converter
        Convert an atomic value from the source type to the target type
        Overrides:
        convert in class StringConverter
        Parameters:
        input - the atomic value to be converted, which the caller guarantees to be of the appropriate type for the converter
        Returns:
        the result of the conversion, as an AtomicValue, if conversion succeeds, or a ValidationFailure object describing the reasons for failure if conversion is not possible. Note that the ValidationFailure object is not (and does not contain) an exception, because it does not necessarily result in an error being thrown, and creating exceptions on non-failure paths is expensive.
      • convertString

        public ConversionResult convertString​(java.lang.CharSequence input)
        Description copied from class: StringConverter
        Convert a string to the target type of this converter.
        Specified by:
        convertString in class StringConverter
        Parameters:
        input - the string to be converted
        Returns:
        either an AtomicValue of the appropriate type for this converter (if conversion succeeded), or a ValidationFailure if conversion failed.
      • isAlwaysSuccessful

        public boolean isAlwaysSuccessful()
        Description copied from class: Converter
        Ask if this converter will always succeed
        Overrides:
        isAlwaysSuccessful in class Converter
        Returns:
        true if this Converter will never return a ValidationFailure
      • validate

        public ValidationFailure validate​(java.lang.CharSequence input)
        Description copied from class: StringConverter
        Validate a string for conformance to the target type, without actually performing the conversion
        Overrides:
        validate in class StringConverter
        Parameters:
        input - the string to be validated
        Returns:
        null if validation is successful, or a ValidationFailure indicating the reasons for failure if unsuccessful