net.openhft.collections

Interface SharedHashMap<K,V>

All Superinterfaces:

AutoCloseable, Closeable, ConcurrentMap<K,V>, Map<K,V>

All Known Subinterfaces:

ChronicleMap<K,V>

public interface SharedHashMap<K,V>
extends ConcurrentMap<K,V>, Closeable

Nested Class Summary

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

Map.Entry<K,V>

Method Summary

Modifier and Type	Method and Description
V	acquireUsing(K key, V value) Acquire a value for a key, creating if absent.
File	file()
V	getUsing(K key, V value) Get a value for a key if available.
long	longSize()

Methods inherited from interface java.util.concurrent.ConcurrentMap

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

Methods inherited from interface java.util.Map

clear, containsKey, containsValue, entrySet, equals, get, hashCode, isEmpty, keySet, put, putAll, remove, size, values

Methods inherited from interface java.io.Closeable

close

Method Detail

longSize

long longSize()

Returns:

size as a long.

See Also:

size()

getUsing

V getUsing(K key,
           V value)

Get a value for a key if available. If the value is Byteable, it will be assigned to reference the value, instead of copying the data for zero copy access to the collection.

Parameters:

key - to lookup.

value - to reuse if possible. If null, a new object will be created.

Returns:

value found or null if not.

acquireUsing

V acquireUsing(K key,
               V value)

Acquire a value for a key, creating if absent. If the value is Byteable, it will be assigned to reference the value, instead of copying the data.

Parameters:

key - to lookup.

value - to reuse if possible. If null, a new object will be created.

Returns:

value created or found.

file

File file()

Returns:

The file or directory for this SharedHashMap