Class ByteCharScatterMap

java.lang.Object
com.carrotsearch.hppc.ByteCharHashMap
com.carrotsearch.hppc.ByteCharScatterMap
All Implemented Interfaces:
ByteCharAssociativeContainer, ByteCharMap, Preallocable, Cloneable, Iterable<ByteCharCursor>

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

    • ByteCharScatterMap

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

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

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

    • hashKey

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

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

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