Class StringToLongConverter

Constructor Detail

• StringToLongConverter

  public StringToLongConverter​(String errorMessage)

  Creates a new converter instance with the given error message. Empty strings are converted to null.

  Parameters:

  errorMessage - the error message to use if conversion fails

• StringToLongConverter

  public StringToLongConverter​(Long emptyValue,
                               String errorMessage)

  Creates a new converter instance with the given empty string value and error message.

  Parameters:

  emptyValue - the presentation value to return when converting an empty string, may be null

  errorMessage - the error message to use if conversion fails

• StringToLongConverter

  public StringToLongConverter​(ErrorMessageProvider errorMessageProvider)

  Creates 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

  Since:

  8.4

• StringToLongConverter

  public StringToLongConverter​(Long emptyValue,
                               ErrorMessageProvider errorMessageProvider)

  Creates a new converter instance with the given empty string value and error message provider.

  Parameters:

  emptyValue - the presentation value to return when converting an empty string, may be null

  errorMessageProvider - the error message provider to use if conversion fails

  Since:

  8.4

Method Detail

• getFormat

  protected NumberFormat getFormat​(Locale locale)

  Returns the format used by Converter.convertToPresentation(Object, ValueContext) and convertToModel(String, ValueContext).

  Overrides:

  getFormat in class AbstractStringToNumberConverter<Long>

  Parameters:

  locale - The locale to use

  Returns:

  A NumberFormat instance

• convertToModel

  public Result<Long> convertToModel​(String 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.

  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