Class LongObjectScatterMap<VType>

java.lang.Object
com.carrotsearch.hppc.LongObjectHashMap<VType>
com.carrotsearch.hppc.LongObjectScatterMap<VType>
All Implemented Interfaces:
LongObjectAssociativeContainer<VType>, LongObjectMap<VType>, Preallocable, Cloneable, Iterable<LongObjectCursor<VType>>

@Generated(date="2023-09-14T00:00:00+0000", value="KTypeVTypeScatterMap.java") public class LongObjectScatterMap<VType> extends LongObjectHashMap<VType>
Same as LongObjectHashMap 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

    • LongObjectScatterMap

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

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

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

    • hashKey

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

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

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