Package joptsimple

Interface ValueConverter<V>

Type Parameters:
V - constraint on the type of values being converted to
All Known Implementing Classes:
ConstructorInvokingValueConverter, DateConverter, EnumConverter, InetAddressConverter, MethodInvokingValueConverter, PathConverter, RegexMatcher

public interface ValueConverter<V>
Instances of this interface are used to convert arguments of options into specific Java types.
  • Method Summary

    Modifier and Type
    Method
    Description
    convert(String value)
    Converts the given string value into a Java type.
    Gives a string that describes the pattern of the values this converter expects, if any.
    Class<? extends V>
    Gives the class of the type of values this converter converts to.
  • Method Details

    • convert

      V convert(String value)
      Converts the given string value into a Java type.
      Parameters:
      value - the string to convert
      Returns:
      the converted value
      Throws:
      ValueConversionException - if a problem occurs while converting the value
    • valueType

      Class<? extends V> valueType()
      Gives the class of the type of values this converter converts to.
      Returns:
      the target class for conversion
    • valuePattern

      String valuePattern()
      Gives a string that describes the pattern of the values this converter expects, if any. For example, a date converter can respond with a date format string.
      Returns:
      a value pattern, or null if there's nothing interesting here