Class ByteIntScatterMap

java.lang.Object
com.carrotsearch.hppc.ByteIntHashMap
com.carrotsearch.hppc.ByteIntScatterMap
All Implemented Interfaces:
ByteIntAssociativeContainer, ByteIntMap, Preallocable, Cloneable, Iterable<ByteIntCursor>

@Generated(date="2024-02-21T00:00:00+0000", value="KTypeVTypeScatterMap.java") public class ByteIntScatterMap extends ByteIntHashMap
Same as ByteIntHashMap 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

    • ByteIntScatterMap

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

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

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

    • hashKey

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

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

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