org.apache.pulsar.common.util.collections

Class ConcurrentLongHashMap<V>

java.lang.Object

org.apache.pulsar.common.util.collections.ConcurrentLongHashMap<V>

Type Parameters:

V -

public class ConcurrentLongHashMap<V>
extends Object

Map from long to an Object.

Provides similar methods as a ConcurrentMap<long,Object> with 2 differences:

1. No boxing/unboxing from long -> Long
2. Open hash map with linear probing, no node allocations to store the values

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ConcurrentLongHashMap.Builder<T> Builder of ConcurrentLongHashMap.
static interface	ConcurrentLongHashMap.EntryProcessor<V> Processor for one key-value entry, where the key is long.

Constructor Summary

Constructors

Constructor and Description
ConcurrentLongHashMap() Deprecated.
ConcurrentLongHashMap(int expectedItems) Deprecated.
ConcurrentLongHashMap(int expectedItems, int concurrencyLevel) Deprecated.
ConcurrentLongHashMap(int expectedItems, int concurrencyLevel, float mapFillFactor, float mapIdleFactor, boolean autoShrink, float expandFactor, float shrinkFactor)

Method Summary

Modifier and Type	Method and Description
long	capacity()
void	clear()
V	computeIfAbsent(long key, LongFunction<V> provider)
boolean	containsKey(long key)
void	forEach(ConcurrentLongHashMap.EntryProcessor<V> processor)
V	get(long key)
boolean	isEmpty()
List<Long>	keys()
static <V> ConcurrentLongHashMap.Builder<V>	newBuilder()
V	put(long key, V value)
V	putIfAbsent(long key, V value)
V	remove(long key)
boolean	remove(long key, Object value)
long	size()
List<V>	values()

Methods inherited from class java.lang.Object

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

Constructor Detail

ConcurrentLongHashMap

@Deprecated
public ConcurrentLongHashMap()

Deprecated.

ConcurrentLongHashMap

@Deprecated
public ConcurrentLongHashMap(int expectedItems)

Deprecated.

ConcurrentLongHashMap

@Deprecated
public ConcurrentLongHashMap(int expectedItems,
                                         int concurrencyLevel)

Deprecated.

ConcurrentLongHashMap

public ConcurrentLongHashMap(int expectedItems,
                             int concurrencyLevel,
                             float mapFillFactor,
                             float mapIdleFactor,
                             boolean autoShrink,
                             float expandFactor,
                             float shrinkFactor)

Method Detail

newBuilder

public static <V> ConcurrentLongHashMap.Builder<V> newBuilder()

size

public long size()

capacity

public long capacity()

isEmpty

public boolean isEmpty()

get

public V get(long key)

containsKey

public boolean containsKey(long key)

put

public V put(long key,
             V value)

putIfAbsent

public V putIfAbsent(long key,
                     V value)

computeIfAbsent

public V computeIfAbsent(long key,
                         LongFunction<V> provider)

remove

public V remove(long key)

remove

public boolean remove(long key,
                      Object value)

clear

public void clear()

forEach

public void forEach(ConcurrentLongHashMap.EntryProcessor<V> processor)

keys

public List<Long> keys()

Returns:

a new list of all keys (makes a copy)

values

public List<V> values()