Class CharLongScatterMap

java.lang.Object
com.carrotsearch.hppc.CharLongHashMap
com.carrotsearch.hppc.CharLongScatterMap
All Implemented Interfaces:
CharLongAssociativeContainer, CharLongMap, Preallocable, Cloneable, Iterable<CharLongCursor>

@Generated(date="2024-02-21T10:44:44+0000", value="KTypeVTypeScatterMap.java") public class CharLongScatterMap extends CharLongHashMap
Same as CharLongHashMap but does not implement per-instance key mixing strategy and uses a simpler (faster) bit distribution function.

Note: read about important differences between hash and scatter sets.

  • Constructor Details

    • CharLongScatterMap

      public CharLongScatterMap()
      New instance with sane defaults.
    • CharLongScatterMap

      public CharLongScatterMap(int expectedElements)
      New instance with sane defaults.
    • CharLongScatterMap

      public CharLongScatterMap(int expectedElements, double loadFactor)
      New instance with sane defaults.
  • Method Details

    • hashKey

      protected int hashKey(char key)
      Description copied from class: CharLongHashMap
      Returns a hash code for the given key.

      The default implementation mixes the hash of the key with CharLongHashMap.keyMixer to differentiate hash order of keys between hash containers. Helps alleviate problems resulting from linear conflict resolution in open addressing.

      The output from this function should evenly distribute keys across the entire integer range.

      Overrides:
      hashKey in class CharLongHashMap
    • from

      public static CharLongScatterMap from(char[] keys, long[] values)
      Creates a hash map from two index-aligned arrays of key-value pairs.