Class FloatDoubleScatterMap

java.lang.Object
com.carrotsearch.hppc.FloatDoubleHashMap
com.carrotsearch.hppc.FloatDoubleScatterMap
All Implemented Interfaces:
FloatDoubleAssociativeContainer, FloatDoubleMap, Preallocable, Cloneable, Iterable<FloatDoubleCursor>

@Generated(date="2024-02-21T10:44:44+0000", value="KTypeVTypeScatterMap.java") public class FloatDoubleScatterMap extends FloatDoubleHashMap
Same as FloatDoubleHashMap 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

    • FloatDoubleScatterMap

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

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

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

    • hashKey

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

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

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