Class CharIntScatterMap

java.lang.Object
com.carrotsearch.hppc.CharIntHashMap
com.carrotsearch.hppc.CharIntScatterMap
All Implemented Interfaces:
CharIntAssociativeContainer, CharIntMap, Preallocable, Cloneable, Iterable<CharIntCursor>

@Generated(date="2023-09-14T00:00:00+0000", value="KTypeVTypeScatterMap.java") public class CharIntScatterMap extends CharIntHashMap
Same as CharIntHashMap 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

    • CharIntScatterMap

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

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

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

    • hashKey

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

      The default implementation mixes the hash of the key with CharIntHashMap.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 CharIntHashMap
    • from

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