org.agrona.collections

Class Int2NullableObjectHashMap<V>

java.lang.Object

org.agrona.collections.Int2ObjectHashMap<V>

org.agrona.collections.Int2NullableObjectHashMap<V>

Type Parameters:

V - type of values stored in the Map

All Implemented Interfaces:

Map<Integer,V>

public class Int2NullableObjectHashMap<V>
extends Int2ObjectHashMap<V>

Variation of Int2ObjectHashMap that allows null values.

Nested Class Summary

Nested classes/interfaces inherited from class org.agrona.collections.Int2ObjectHashMap

Int2ObjectHashMap.EntryIterator, Int2ObjectHashMap.EntrySet, Int2ObjectHashMap.KeyIterator, Int2ObjectHashMap.KeySet, Int2ObjectHashMap.ValueCollection, Int2ObjectHashMap.ValueIterator

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor and Description
Int2NullableObjectHashMap() Constructs map with default settings.
Int2NullableObjectHashMap(Int2ObjectHashMap<V> mapToCopy) Copy construct a new map from an existing one.
Int2NullableObjectHashMap(int initialCapacity, float loadFactor) Constructs map with given initial capacity and load factory and enables caching of iterators.
Int2NullableObjectHashMap(int initialCapacity, float loadFactor, boolean shouldAvoidAllocation) Construct a new map allowing a configuration for initial capacity and load factor.

Method Summary

Modifier and Type	Method and Description
protected Object	mapNullValue(Object value) Interceptor for masking null values.
protected V	unmapNullValue(Object value) Interceptor for unmasking null values.

Methods inherited from class org.agrona.collections.Int2ObjectHashMap

capacity, clear, compact, computeIfAbsent, containsKey, containsKey, containsValue, entrySet, equals, get, get, getMapped, hashCode, isEmpty, keySet, loadFactor, put, put, putAll, remove, remove, replace, replace, resizeThreshold, size, toString, values

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Detail

Int2NullableObjectHashMap

public Int2NullableObjectHashMap()

Constructs map with default settings.

Int2NullableObjectHashMap

public Int2NullableObjectHashMap(int initialCapacity,
                                 float loadFactor)

Constructs map with given initial capacity and load factory and enables caching of iterators.

Parameters:

initialCapacity - for the backing array.

loadFactor - limit for resizing on puts.

Int2NullableObjectHashMap

public Int2NullableObjectHashMap(int initialCapacity,
                                 float loadFactor,
                                 boolean shouldAvoidAllocation)

Construct a new map allowing a configuration for initial capacity and load factor.

Parameters:

initialCapacity - for the backing array

loadFactor - limit for resizing on puts

shouldAvoidAllocation - should allocation be avoided by caching iterators and map entries.

Int2NullableObjectHashMap

public Int2NullableObjectHashMap(Int2ObjectHashMap<V> mapToCopy)

Copy construct a new map from an existing one.

Parameters:

mapToCopy - for construction.

Method Detail

mapNullValue

protected Object mapNullValue(Object value)

Description copied from class: Int2ObjectHashMap

Interceptor for masking null values.

Overrides:

mapNullValue in class Int2ObjectHashMap<V>

Parameters:

value - value to mask.

Returns:

masked value.

unmapNullValue

protected V unmapNullValue(Object value)

Description copied from class: Int2ObjectHashMap

Interceptor for unmasking null values.

Overrides:

unmapNullValue in class Int2ObjectHashMap<V>

Parameters:

value - value to unmask.

Returns:

unmasked value.