Module jdk.dynalink
Package jdk.dynalink.linker

Interface ConversionComparator

public interface ConversionComparator
Optional interface to be implemented by GuardingTypeConverterFactory implementers. Language-specific conversions can cause increased overloaded method resolution ambiguity, as many methods can become applicable because of additional conversions. The static way of selecting the "most specific" method will fail more often, because there will be multiple maximally specific method with unrelated signatures. In these cases, language runtimes can be asked to resolve the ambiguity by expressing preferences for one conversion over the other.

  • Nested Class Summary

    Nested Classes 
    Modifier and Type Interface Description
    static class  ConversionComparator.Comparison
    Enumeration of possible outcomes of comparing one conversion to another.

  • Method Summary

    Modifier and Type Method Description
    ConversionComparator.Comparison compareConversion​(Class<?> sourceType, Class<?> targetType1, Class<?> targetType2)
    Determines which of the two target types is the preferred conversion target from a source type.

  • Method Details

    • compareConversion

      ConversionComparator.Comparison compareConversion​(Class<?> sourceType, Class<?> targetType1, Class<?> targetType2)
      Determines which of the two target types is the preferred conversion target from a source type.
      Parameters:
      sourceType - the source type.
      targetType1 - one potential target type
      targetType2 - another potential target type.
      Returns:
      one of Comparison constants that establish which - if any - of the target types is preferred for the conversion.