Class ShortLongScatterMap

java.lang.Object
com.carrotsearch.hppc.ShortLongHashMap
com.carrotsearch.hppc.ShortLongScatterMap
All Implemented Interfaces:
Preallocable, ShortLongAssociativeContainer, ShortLongMap, Cloneable, Iterable<ShortLongCursor>

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

    • ShortLongScatterMap

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

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

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

    • hashKey

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

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

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