com.vaadin.flow.data.converter

Class StringToUuidConverter

java.lang.Object

com.vaadin.flow.data.converter.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 Summary

Constructors

Constructor and Description
StringToUuidConverter(ErrorMessageProvider errorMessageProvider) Constructs a new converter instance with the given error message provider.
StringToUuidConverter(String errorMessage) Constructs a converter for String to UUID and back.

Method Summary

Modifier and Type	Method and Description
Result<UUID>	convertToModel(String value, ValueContext context) Converts the given value from presentation type to model type.
String	convertToPresentation(UUID value, ValueContext context) Converts the given value from model type to presentation type.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.vaadin.flow.data.converter.Converter

chain, from, from, identity

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