Package com.carrotsearch.hppc
Class ObjectByteIdentityHashMap<KType>
- java.lang.Object
-
- com.carrotsearch.hppc.ObjectByteHashMap<KType>
-
- com.carrotsearch.hppc.ObjectByteIdentityHashMap<KType>
-
- All Implemented Interfaces:
ObjectByteAssociativeContainer<KType>
,ObjectByteMap<KType>
,Preallocable
,java.lang.Cloneable
,java.lang.Iterable<ObjectByteCursor<KType>>
@Generated(date="2021-05-28T03:45:42+0000", value="KTypeVTypeIdentityHashMap.java") public class ObjectByteIdentityHashMap<KType> extends ObjectByteHashMap<KType>
An identity hash map ofObject
tobyte
.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from class com.carrotsearch.hppc.ObjectByteHashMap
ObjectByteHashMap.KeysContainer
-
-
Field Summary
-
Fields inherited from class com.carrotsearch.hppc.ObjectByteHashMap
assigned, hasEmptyKey, keyMixer, keys, loadFactor, mask, orderMixer, resizeAt, values
-
-
Constructor Summary
Constructors Constructor Description ObjectByteIdentityHashMap()
New instance with sane defaults.ObjectByteIdentityHashMap(int expectedElements)
New instance with sane defaults.ObjectByteIdentityHashMap(int expectedElements, double loadFactor)
New instance with sane defaults.ObjectByteIdentityHashMap(int expectedElements, double loadFactor, HashOrderMixingStrategy orderMixer)
New instance with the provided defaults.ObjectByteIdentityHashMap(ObjectByteAssociativeContainer<? extends KType> container)
Create a hash map from all key-value pairs of another container.
-
Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description boolean
equals(java.lang.Object v1, java.lang.Object v2)
static <KType> ObjectByteIdentityHashMap<KType>
from(KType[] keys, byte[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.int
hashKey(KType key)
Returns a hash code for the given key.-
Methods inherited from class com.carrotsearch.hppc.ObjectByteHashMap
addTo, allocateBuffers, allocateThenInsertThenRehash, clear, clone, containsKey, ensureCapacity, equalElements, equals, forEach, get, getOrDefault, hashCode, indexExists, indexGet, indexInsert, indexOf, indexReplace, isEmpty, iterator, keys, put, putAll, putAll, putIfAbsent, putOrAdd, rehash, release, remove, removeAll, removeAll, removeAll, shiftConflictingKeys, size, toString, values, verifyLoadFactor, visualizeKeyDistribution
-
-
-
-
Constructor Detail
-
ObjectByteIdentityHashMap
public ObjectByteIdentityHashMap()
New instance with sane defaults.
-
ObjectByteIdentityHashMap
public ObjectByteIdentityHashMap(int expectedElements)
New instance with sane defaults.- Parameters:
expectedElements
- The expected number of elements guaranteed not to cause buffer expansion (inclusive).
-
ObjectByteIdentityHashMap
public ObjectByteIdentityHashMap(int expectedElements, double loadFactor)
New instance with sane defaults.- Parameters:
expectedElements
- The expected number of elements guaranteed not to cause buffer expansion (inclusive).loadFactor
- The load factor for internal buffers. Insane load factors (zero, full capacity) are rejected byObjectByteHashMap.verifyLoadFactor(double)
.
-
ObjectByteIdentityHashMap
public ObjectByteIdentityHashMap(int expectedElements, double loadFactor, HashOrderMixingStrategy orderMixer)
New instance with the provided defaults.- Parameters:
expectedElements
- The expected number of elements guaranteed not to cause a rehash (inclusive).loadFactor
- The load factor for internal buffers. Insane load factors (zero, full capacity) are rejected byObjectByteHashMap.verifyLoadFactor(double)
.orderMixer
- Hash key order mixing strategy. SeeHashOrderMixing
for predefined implementations. Use constant mixers only if you understand the potential consequences.
-
ObjectByteIdentityHashMap
public ObjectByteIdentityHashMap(ObjectByteAssociativeContainer<? extends KType> container)
Create a hash map from all key-value pairs of another container.
-
-
Method Detail
-
hashKey
public int hashKey(KType key)
Description copied from class:ObjectByteHashMap
Returns a hash code for the given key.The default implementation mixes the hash of the key with
ObjectByteHashMap.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 classObjectByteHashMap<KType>
-
equals
public boolean equals(java.lang.Object v1, java.lang.Object v2)
- Overrides:
equals
in classObjectByteHashMap<KType>
-
from
public static <KType> ObjectByteIdentityHashMap<KType> from(KType[] keys, byte[] values)
Creates a hash map from two index-aligned arrays of key-value pairs.
-
-