Package com.carrotsearch.hppc
Class ObjectScatterSet<KType>
- java.lang.Object
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- com.carrotsearch.hppc.AbstractObjectCollection<KType>
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- com.carrotsearch.hppc.ObjectHashSet<KType>
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- com.carrotsearch.hppc.ObjectScatterSet<KType>
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- All Implemented Interfaces:
ObjectCollection<KType>
,ObjectContainer<KType>
,ObjectLookupContainer<KType>
,ObjectSet<KType>
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<ObjectCursor<KType>>
@Generated(date="2024-05-16T12:00:00+0000", value="KTypeScatterSet.java") public class ObjectScatterSet<KType> extends ObjectHashSet<KType>
Same asObjectHashSet
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.
- See Also:
ObjectHashSet
, HPPC interfaces diagram
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Nested Class Summary
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Nested classes/interfaces inherited from class com.carrotsearch.hppc.ObjectHashSet
ObjectHashSet.EntryIterator
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Field Summary
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Fields inherited from class com.carrotsearch.hppc.ObjectHashSet
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt
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Constructor Summary
Constructors Constructor Description ObjectScatterSet()
New instance with sane defaults.ObjectScatterSet(int expectedElements)
New instance with sane defaults.ObjectScatterSet(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static <KType> ObjectScatterSet<KType>
from(KType... elements)
Create a set from a variable number of arguments or an array ofObject
.protected int
hashKey(KType key)
Returns a hash code for the given key.-
Methods inherited from class com.carrotsearch.hppc.ObjectHashSet
add, addAll, addAll, addAll, allocateBuffers, allocateThenInsertThenRehash, clear, clone, contains, ensureCapacity, equals, forEach, hashCode, indexExists, indexGet, indexInsert, indexOf, indexReplace, isEmpty, iterator, rehash, release, remove, removeAll, removeAll, shiftConflictingKeys, size, toArray, verifyLoadFactor, visualizeKeyDistribution
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Methods inherited from class com.carrotsearch.hppc.AbstractObjectCollection
equals, removeAll, retainAll, retainAll, toArray, toString
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Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface com.carrotsearch.hppc.ObjectCollection
removeAll, retainAll, retainAll
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Methods inherited from interface com.carrotsearch.hppc.ObjectContainer
toArray
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Constructor Detail
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ObjectScatterSet
public ObjectScatterSet()
New instance with sane defaults.
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ObjectScatterSet
public ObjectScatterSet(int expectedElements)
New instance with sane defaults.
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ObjectScatterSet
public ObjectScatterSet(int expectedElements, double loadFactor)
New instance with sane defaults.
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Method Detail
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hashKey
protected int hashKey(KType key)
Description copied from class:ObjectHashSet
Returns a hash code for the given key. The default implementation mixes the hash of the key withObjectHashSet.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 classObjectHashSet<KType>
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from
@SafeVarargs public static <KType> ObjectScatterSet<KType> from(KType... elements)
Create a set from a variable number of arguments or an array ofObject
. The elements are copied from the argument to the internal buffer.
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