Package org.aksw.commons.index.util

Interface ListSupplier

public interface ListSupplier
Helper interface for creating new set instances with automatically inferred types
Author:
Claus Stadler 11/09/2020

  • Method Summary

    Modifier and Type
    Method
    Description
    static ListSupplier
    forceCast(Supplier<Set<?>> listSupplier)
    Force cast to the requested type.
    <V> List<V>
    get()
     
    static ListSupplier
    none()
    A supplier that supplies null instead of set instances.

  • Method Details

    • get

      <V> List<V> get()

    • none

      static ListSupplier none()
      A supplier that supplies null instead of set instances. In nested structures such null values may act as placeholders that are replaced in a post-processing step.
      Returns:
      'null' casted to the appropriate type.

    • forceCast

      static ListSupplier forceCast(Supplier<Set<?>> listSupplier)
      Force cast to the requested type. Useful for e.g. TreeSets: While e.g. HashSet::new can supply set instances for any generic type, TreeSets are dependent on a comparator which may only work with specific types.
      Parameters:
      setSupplier -
      Returns: