Class ShortByteScatterMap

java.lang.Object
com.carrotsearch.hppc.ShortByteHashMap
com.carrotsearch.hppc.ShortByteScatterMap
All Implemented Interfaces:
Preallocable, ShortByteAssociativeContainer, ShortByteMap, Cloneable, Iterable<ShortByteCursor>

@Generated(date="2023-10-26T04:33:09+0000", value="KTypeVTypeScatterMap.java") public class ShortByteScatterMap extends ShortByteHashMap
Same as ShortByteHashMap 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

    • ShortByteScatterMap

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

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

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

    • hashKey

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

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

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