Class LongLongScatterMap

java.lang.Object
com.carrotsearch.hppc.LongLongHashMap
com.carrotsearch.hppc.LongLongScatterMap
All Implemented Interfaces:
LongLongAssociativeContainer, LongLongMap, Preallocable, Cloneable, Iterable<LongLongCursor>

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

    • LongLongScatterMap

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

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

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

    • hashKey

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

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

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