Class LongIntScatterMap

java.lang.Object
com.carrotsearch.hppc.LongIntHashMap
com.carrotsearch.hppc.LongIntScatterMap
All Implemented Interfaces:
LongIntAssociativeContainer, LongIntMap, Preallocable, Cloneable, Iterable<LongIntCursor>

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

    • LongIntScatterMap

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

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

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

    • hashKey

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

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

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