Package com.vaadin.flow.data.converter

Class StringToUuidConverter

  • All Implemented Interfaces:
    Converter<String,​UUID>, Serializable
    public class StringToUuidConverter
extends Object
implements Converter<String,​UUID>
    A converter that converts from String to UUID and back.

    Leading and trailing white spaces are ignored when converting from a String.

    The String representation uses the canonical format of 32-characters with a hyphen to separate each of five groups of hexadecimal digits as defined in: RFC 4122: A Universally Unique IDentifier (UUID) URN Namespace http://www.ietf.org/rfc/rfc4122.txt

    Author:
    Vaadin Ltd
    See Also:
    Serialized Form

    • Constructor Detail

      • StringToUuidConverter

        public StringToUuidConverter​(String errorMessage)
        Constructs a converter for String to UUID and back.
        Parameters:
        errorMessage - the error message to use if conversion fails

      • StringToUuidConverter

        public StringToUuidConverter​(ErrorMessageProvider errorMessageProvider)
        Constructs a new converter instance with the given error message provider. Empty strings are converted to null.
        Parameters:
        errorMessageProvider - the error message provider to use if conversion fails

    • Method Detail

      • convertToModel

        public Result<UUID> convertToModel​(String value,
                                   ValueContext context)
        Description copied from interface: Converter
        Converts the given value from presentation type to model type.

        A converter can optionally use locale to do the conversion.

        Specified by:
        convertToModel in interface Converter<String,​UUID>
        Parameters:
        value - The value to convert. Can be null
        context - The value context for the conversion.
        Returns:
        The converted value compatible with the source type

      • convertToPresentation

        public String convertToPresentation​(UUID value,
                                    ValueContext context)
        Description copied from interface: Converter
        Converts the given value from model type to presentation type.

        A converter can optionally use locale to do the conversion.

        Specified by:
        convertToPresentation in interface Converter<String,​UUID>
        Parameters:
        value - The value to convert. Can be null
        context - The value context for the conversion.
        Returns:
        The converted value compatible with the source type