Class ShortObjectScatterMap<VType>

java.lang.Object
com.carrotsearch.hppc.ShortObjectHashMap<VType>
com.carrotsearch.hppc.ShortObjectScatterMap<VType>
All Implemented Interfaces:
Preallocable, ShortObjectAssociativeContainer<VType>, ShortObjectMap<VType>, Cloneable, Iterable<ShortObjectCursor<VType>>

@Generated(date="2023-10-26T04:33:09+0000", value="KTypeVTypeScatterMap.java") public class ShortObjectScatterMap<VType> extends ShortObjectHashMap<VType>
Same as ShortObjectHashMap 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

    • ShortObjectScatterMap

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

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

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

    • hashKey

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

      The default implementation mixes the hash of the key with ShortObjectHashMap.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 ShortObjectHashMap<VType>
    • from

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