Class ByteLongScatterMap

java.lang.Object
com.carrotsearch.hppc.ByteLongHashMap
com.carrotsearch.hppc.ByteLongScatterMap
All Implemented Interfaces:
ByteLongAssociativeContainer, ByteLongMap, Preallocable, Cloneable, Iterable<ByteLongCursor>

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

    • ByteLongScatterMap

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

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

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

    • hashKey

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

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

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