org.jboss.remoting3._private

Class IntIndexHashMap<V>

java.lang.Object

java.util.AbstractCollection<V>

org.jboss.remoting3._private.IntIndexHashMap<V>

Type Parameters:

V - the value type

All Implemented Interfaces:

Iterable<V>, Collection<V>, ToIntFunction<V>, IntIndexMap<V>

public final class IntIndexHashMap<V>
extends AbstractCollection<V>
implements IntIndexMap<V>

Lock-free concurrent integer-indexed hash map.

Author:

David M. Lloyd

Constructor Summary

Constructors

Constructor and Description
IntIndexHashMap(ToIntFunction<? super V> indexer) Construct a new instance.
IntIndexHashMap(ToIntFunction<? super V> indexer, Equaller<? super V> valueEqualler) Construct a new instance.
IntIndexHashMap(ToIntFunction<? super V> indexer, Equaller<? super V> valueEqualler, int initialCapacity, float loadFactor) Construct a new instance.
IntIndexHashMap(ToIntFunction<? super V> indexer, float loadFactor) Construct a new instance.
IntIndexHashMap(ToIntFunction<? super V> indexer, int initialCapacity) Construct a new instance.
IntIndexHashMap(ToIntFunction<? super V> indexer, int initialCapacity, float loadFactor) Construct a new instance.

Method Summary

Modifier and Type	Method and Description
boolean	add(V v)
int	applyAsInt(V argument)
void	clear()
V	computeIfAbsent(int index, IntFunction<V> producer) Compute a map value if no mapping exists.
boolean	contains(Object o)
boolean	containsKey(int index) Determine whether the given index is contained in the map.
V	get(int index) Get the value for the given index.
Iterator<V>	iterator()
V	put(V value) Put a value into the map, replacing and returning any existing mapping.
V	putIfAbsent(V value) Put a value into the map if there is not already an existing mapping for it.
boolean	remove(Object value)
V	removeKey(int index) Remove and return a value for the given index.
V	replace(V value) Put a value into the map only if there is an existing mapping for it.
boolean	replace(V oldValue, V newValue) Replace an old value with a new value.
int	size()
Object[]	toArray()
<T> T[]	toArray(T[] a)

Methods inherited from class java.util.AbstractCollection

addAll, containsAll, isEmpty, removeAll, retainAll, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection

addAll, containsAll, equals, hashCode, isEmpty, parallelStream, removeAll, removeIf, retainAll, spliterator, stream

Methods inherited from interface java.lang.Iterable

forEach

Constructor Detail

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer,
                       Equaller<? super V> valueEqualler,
                       int initialCapacity,
                       float loadFactor)

Construct a new instance.

Parameters:

indexer - the key indexer

valueEqualler - the value equaller

initialCapacity - the initial capacity

loadFactor - the load factor

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer,
                       Equaller<? super V> valueEqualler)

Construct a new instance.

Parameters:

indexer - the key indexer

valueEqualler - the value equaller

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer,
                       int initialCapacity,
                       float loadFactor)

Construct a new instance.

Parameters:

indexer - the key indexer

initialCapacity - the initial capacity

loadFactor - the load factor

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer,
                       float loadFactor)

Construct a new instance.

Parameters:

indexer - the key indexer

loadFactor - the load factor

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer,
                       int initialCapacity)

Construct a new instance.

Parameters:

indexer - the key indexer

initialCapacity - the initial capacity

IntIndexHashMap

public IntIndexHashMap(ToIntFunction<? super V> indexer)

Construct a new instance.

Parameters:

indexer - the key indexer

Method Detail

putIfAbsent

public V putIfAbsent(V value)

Description copied from interface: IntIndexMap

Put a value into the map if there is not already an existing mapping for it.

Specified by:

putIfAbsent in interface IntIndexMap<V>

Parameters:

value - the value to add

Returns:

the existing value, if any, or null if the existing value was null or the value was added successfully

computeIfAbsent

public V computeIfAbsent(int index,
                         IntFunction<V> producer)

Description copied from interface: IntIndexMap

Compute a map value if no mapping exists.

Specified by:

computeIfAbsent in interface IntIndexMap<V>

Parameters:

index - the key

producer - the producer which creates a new value

Returns:

the existing or new value

removeKey

public V removeKey(int index)

Description copied from interface: IntIndexMap

Remove and return a value for the given index.

Specified by:

removeKey in interface IntIndexMap<V>

Parameters:

index - the index

Returns:

the value

remove

public boolean remove(Object value)

Specified by:

remove in interface Collection<V>

Specified by:

remove in interface IntIndexMap<V>

Overrides:

remove in class AbstractCollection<V>

containsKey

public boolean containsKey(int index)

Description copied from interface: IntIndexMap

Determine whether the given index is contained in the map.

Specified by:

containsKey in interface IntIndexMap<V>

Parameters:

index - the index

Returns:

true if it is contained in the map

get

public V get(int index)

Description copied from interface: IntIndexMap

Get the value for the given index.

Specified by:

get in interface IntIndexMap<V>

Parameters:

index - the index

Returns:

the corresponding value

put

public V put(V value)

Description copied from interface: IntIndexMap

Put a value into the map, replacing and returning any existing mapping.

Specified by:

put in interface IntIndexMap<V>

Parameters:

value - the value to add

Returns:

the old value, or null if the old value was null or was not present

replace

public V replace(V value)

Description copied from interface: IntIndexMap

Put a value into the map only if there is an existing mapping for it.

Specified by:

replace in interface IntIndexMap<V>

Parameters:

value - the value to store

Returns:

the previous value (may be null) or null if there was no mapping to replace

replace

public boolean replace(V oldValue,
                       V newValue)

Description copied from interface: IntIndexMap

Replace an old value with a new value.

Specified by:

replace in interface IntIndexMap<V>

Parameters:

oldValue - the value to replace

newValue - the value to replace with

Returns:

true if the replacement succeeded, or false if the old value was not present in the map

applyAsInt

public int applyAsInt(V argument)

Specified by:

applyAsInt in interface ToIntFunction<V>

add

public boolean add(V v)

Specified by:

add in interface Collection<V>

Overrides:

add in class AbstractCollection<V>

toArray

public <T> T[] toArray(T[] a)

Specified by:

toArray in interface Collection<V>

Overrides:

toArray in class AbstractCollection<V>

toArray

public Object[] toArray()

Specified by:

toArray in interface Collection<V>

Overrides:

toArray in class AbstractCollection<V>

contains

public boolean contains(Object o)

Specified by:

contains in interface Collection<V>

Overrides:

contains in class AbstractCollection<V>

iterator

public Iterator<V> iterator()

Specified by:

iterator in interface Iterable<V>

Specified by:

iterator in interface Collection<V>

Specified by:

iterator in class AbstractCollection<V>

size

public int size()

Specified by:

size in interface Collection<V>

Specified by:

size in class AbstractCollection<V>

clear

public void clear()

Specified by:

clear in interface Collection<V>

Overrides:

clear in class AbstractCollection<V>