Class ConcurrentOffHeapHashMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

org.terracotta.offheapstore.concurrent.AbstractConcurrentOffHeapMap<K,V>

org.terracotta.offheapstore.concurrent.ConcurrentOffHeapHashMap<K,V>

Type Parameters:

K - the type of keys maintained by this map

V - the type of mapped values

All Implemented Interfaces:

ConcurrentMap<K,V>, Map<K,V>, ConcurrentMapInternals, HashingMap<K,V>, MapInternals

public class ConcurrentOffHeapHashMap<K,V>
extends AbstractConcurrentOffHeapMap<K,V>

A striped concurrent-read/exclusive-write map.

This implementation uses instances of ReadWriteLockedOffHeapHashMap for its segments.

See Also:

• ReadWriteLockedOffHeapHashMap

Nested Class Summary

Nested classes/interfaces inherited from class AbstractConcurrentOffHeapMap

AbstractConcurrentOffHeapMap.AggregatedValuesCollection, AbstractConcurrentOffHeapMap.AggregateEntrySet, AbstractConcurrentOffHeapMap.AggregateIterator<T>, AbstractConcurrentOffHeapMap.AggregateKeySet

Nested classes/interfaces inherited from class AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface Map

Map.Entry<K,V>

Field Summary

Fields inherited from class AbstractConcurrentOffHeapMap

segments

Constructor Summary

Constructors

Constructor	Description
ConcurrentOffHeapHashMap(PageSource tableSource, boolean tableAllocationsSteal, Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory)
ConcurrentOffHeapHashMap(PageSource tableSource, boolean tableAllocationsSteal, Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory, long tableSize, int concurrency)
ConcurrentOffHeapHashMap(PageSource tableSource, Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory)	Creates a map using the given table buffer source and storage engine factory.
ConcurrentOffHeapHashMap(PageSource tableSource, Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory, long tableSize, int concurrency)	Creates a map using the given table buffer source, storage engine factory, initial table size, and concurrency.

Method Summary

Methods inherited from class AbstractConcurrentOffHeapMap

clear, computeIfAbsentWithMetadata, computeIfPresentWithMetadata, computeWithMetadata, containsKey, containsValue, destroy, entrySet, fill, fill, get, getAllocatedMemory, getAndSetMetadata, getConcurrency, getDataAllocatedMemory, getDataOccupiedMemory, getDataSize, getDataVitalMemory, getIndexFor, getMetadata, getOccupiedMemory, getRemovedSlotCount, getReprobeLength, getSegmentInternals, getSegments, getSize, getTableCapacity, getUsedSlotCount, getValueAndSetMetadata, getVitalMemory, handleOversizeMappingException, keySet, put, put, putIfAbsent, readLockAll, readUnlockAll, remove, remove, removeAllWithHash, removeNoReturn, replace, replace, segmentFor, segmentFor, size, values, writeLockAll, writeUnlockAll

Methods inherited from class AbstractMap

clone, equals, hashCode, isEmpty, putAll, toString

Methods inherited from class Object

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

Methods inherited from interface ConcurrentMap

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, replaceAll

Methods inherited from interface Map

equals, hashCode, isEmpty, putAll

Constructor Details

ConcurrentOffHeapHashMap

public ConcurrentOffHeapHashMap(PageSource tableSource,
 Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory)

Creates a map using the given table buffer source and storage engine factory.

Parameters:

tableSource - buffer source from which hash tables are allocated

storageEngineFactory - factory for the segment storage engines

ConcurrentOffHeapHashMap

public ConcurrentOffHeapHashMap(PageSource tableSource,
 boolean tableAllocationsSteal,
 Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory)

ConcurrentOffHeapHashMap

public ConcurrentOffHeapHashMap(PageSource tableSource,
 Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory,
 long tableSize,
 int concurrency)

Creates a map using the given table buffer source, storage engine factory, initial table size, and concurrency.

Parameters:

tableSource - buffer source from which hash tables are allocated

storageEngineFactory - factory for the segment storage engines

tableSize - initial table size (summed across all segments)

concurrency - number of segments

ConcurrentOffHeapHashMap

public ConcurrentOffHeapHashMap(PageSource tableSource,
 boolean tableAllocationsSteal,
 Factory<? extends StorageEngine<? super K, ? super V>> storageEngineFactory,
 long tableSize,
 int concurrency)