Class LongByteScatterMap

java.lang.Object
com.carrotsearch.hppc.LongByteHashMap
com.carrotsearch.hppc.LongByteScatterMap
All Implemented Interfaces:
LongByteAssociativeContainer, LongByteMap, Preallocable, Cloneable, Iterable<LongByteCursor>

@Generated(date="2023-09-14T00:00:00+0000", value="KTypeVTypeScatterMap.java") public class LongByteScatterMap extends LongByteHashMap
Same as LongByteHashMap 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

    • LongByteScatterMap

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

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

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

    • hashKey

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

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

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