Class CharByteScatterMap

java.lang.Object
com.carrotsearch.hppc.CharByteHashMap
com.carrotsearch.hppc.CharByteScatterMap
All Implemented Interfaces:
CharByteAssociativeContainer, CharByteMap, Preallocable, Cloneable, Iterable<CharByteCursor>

@Generated(date="2023-10-26T04:33:10+0000", value="KTypeVTypeScatterMap.java") public class CharByteScatterMap extends CharByteHashMap
Same as CharByteHashMap 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

    • CharByteScatterMap

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

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

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

    • hashKey

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

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

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