V
- The value type stored in the map.public class IntObjectHashMap<V> extends Object implements IntObjectMap<V>
IntObjectMap
that uses open addressing for keys.
To minimize the memory footprint, this class uses open addressing rather than chaining.
Collisions are resolved using linear probing. Deletions implement compaction, so cost of
remove can approach O(N) for full maps, which makes a small loadFactor recommended.IntObjectMap.PrimitiveEntry<V>
Modifier and Type | Field and Description |
---|---|
static int |
DEFAULT_CAPACITY
Default initial capacity.
|
static float |
DEFAULT_LOAD_FACTOR
Default load factor.
|
Constructor and Description |
---|
IntObjectHashMap() |
IntObjectHashMap(int initialCapacity) |
IntObjectHashMap(int initialCapacity,
float loadFactor) |
Modifier and Type | Method and Description |
---|---|
void |
clear() |
boolean |
containsKey(int key)
Indicates whether or not this map contains a value for the specified key.
|
boolean |
containsKey(Object key) |
boolean |
containsValue(Object value) |
Iterable<IntObjectMap.PrimitiveEntry<V>> |
entries()
Gets an iterable to traverse over the primitive entries contained in this map.
|
Set<Map.Entry<Integer,V>> |
entrySet() |
boolean |
equals(Object obj) |
V |
get(int key)
Gets the value in the map with the specified key.
|
V |
get(Object key) |
int |
hashCode() |
boolean |
isEmpty() |
Set<Integer> |
keySet() |
protected String |
keyToString(int key)
Helper method called by
toString() in order to convert a single map key into a string. |
V |
put(Integer key,
V value) |
V |
put(int key,
V value)
Puts the given entry into the map.
|
void |
putAll(Map<? extends Integer,? extends V> sourceMap) |
V |
remove(int key)
Removes the entry with the specified key.
|
V |
remove(Object key) |
int |
size() |
String |
toString() |
Collection<V> |
values() |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll
public static final int DEFAULT_CAPACITY
public static final float DEFAULT_LOAD_FACTOR
public IntObjectHashMap()
public IntObjectHashMap(int initialCapacity)
public IntObjectHashMap(int initialCapacity, float loadFactor)
public V get(int key)
IntObjectMap
get
in interface IntObjectMap<V>
key
- the key whose associated value is to be returned.null
if the key was not found in the map.public V put(int key, V value)
IntObjectMap
put
in interface IntObjectMap<V>
key
- the key of the entry.value
- the value of the entry.null
if there was no previous mapping.public V remove(int key)
IntObjectMap
remove
in interface IntObjectMap<V>
key
- the key for the entry to be removed from this map.null
if there was no mapping.public boolean containsKey(int key)
IntObjectMap
containsKey
in interface IntObjectMap<V>
public boolean containsValue(Object value)
containsValue
in interface Map<Integer,V>
public Iterable<IntObjectMap.PrimitiveEntry<V>> entries()
IntObjectMap
IntObjectMap.PrimitiveEntry
s returned by the Iterator
may change as the Iterator
progresses. The caller should not rely on IntObjectMap.PrimitiveEntry
key/value stability.entries
in interface IntObjectMap<V>
public int hashCode()
public boolean equals(Object obj)
public boolean containsKey(Object key)
containsKey
in interface Map<Integer,V>
protected String keyToString(int key)
toString()
in order to convert a single map key into a string.
This is protected to allow subclasses to override the appearance of a given key.Copyright © 2008–2019 The Netty Project. All rights reserved.