Class IntLongScatterMap

java.lang.Object
com.carrotsearch.hppc.IntLongHashMap
com.carrotsearch.hppc.IntLongScatterMap
All Implemented Interfaces:
IntLongAssociativeContainer, IntLongMap, Preallocable, Cloneable, Iterable<IntLongCursor>

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

    • IntLongScatterMap

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

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

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

    • hashKey

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

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

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