org.redisson.core

Interface RMap<K,V>

Type Parameters:

K - key

V - value

All Superinterfaces:

ConcurrentMap<K,V>, Map<K,V>, RExpirable, RExpirableAsync, RMapAsync<K,V>, RObject, RObjectAsync

All Known Subinterfaces:

RMapCache<K,V>

All Known Implementing Classes:

RedissonMap, RedissonMapCache

public interface RMap<K,V>
extends ConcurrentMap<K,V>, RExpirable, RMapAsync<K,V>

Distributed and concurrent implementation of ConcurrentMap and Map This map doesn't allow to store null as key or value.

Author:

Nikita Koksharov

Nested Class Summary

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

Map.Entry<K,V>

Method Summary

Methods

Modifier and Type	Method and Description
V	addAndGet(K key, Number delta) Atomically adds the given delta to the current value by mapped key.
Iterator<Map.Entry<K,V>>	entryIterator() Deprecated.
boolean	fastPut(K key, V value) Associates the specified value with the specified key.
boolean	fastPutIfAbsent(K key, V value)
long	fastRemove(K... keys) Removes keys from map by one operation Works faster than RMap.remove but not returning the value associated with key
Map<K,V>	filterEntries(Predicate<Map.Entry<K,V>> predicate) Deprecated.
Map<K,V>	filterKeys(Predicate<K> predicate) Deprecated.
Map<K,V>	filterValues(Predicate<V> predicate) Deprecated.
Map<K,V>	getAll(Set<K> keys) Gets a map slice contains the mappings with defined keys by one operation.
Iterator<K>	keyIterator() Deprecated.
Set<Map.Entry<K,V>>	readAllEntrySet() Read all map entries at once
Set<K>	readAllKeySet() Read all keys at once
Collection<V>	readAllValues() Read all values at once
Iterator<V>	valueIterator() Deprecated.

Methods inherited from interface java.util.concurrent.ConcurrentMap

putIfAbsent, remove, replace, replace

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 org.redisson.core.RExpirable

clearExpire, expire, expireAt, expireAt, remainTimeToLive

Methods inherited from interface org.redisson.core.RObject

delete, getName, isExists, migrate, move, rename, renamenx

Methods inherited from interface org.redisson.core.RMapAsync

addAndGetAsync, containsKeyAsync, containsValueAsync, fastPutAsync, fastPutIfAbsentAsync, fastRemoveAsync, getAllAsync, getAsync, putAllAsync, putAsync, putIfAbsentAsync, readAllEntrySetAsync, readAllKeySetAsync, readAllValuesAsync, removeAsync, removeAsync, replaceAsync, replaceAsync, sizeAsync

Methods inherited from interface org.redisson.core.RExpirableAsync

clearExpireAsync, expireAsync, expireAtAsync, expireAtAsync, remainTimeToLiveAsync

Methods inherited from interface org.redisson.core.RObjectAsync

deleteAsync, isExistsAsync, migrateAsync, moveAsync, renameAsync, renamenxAsync

Method Detail

addAndGet

V addAndGet(K key,
          Number delta)

Atomically adds the given delta to the current value by mapped key. Works only for numeric values!

Parameters:

key -

delta - the value to add

Returns:

the updated value

getAll

Map<K,V> getAll(Set<K> keys)

Gets a map slice contains the mappings with defined keys by one operation. This operation NOT traverses all map entries like any other filter* method, so works faster. The returned map is NOT backed by the original map.

Parameters:

keys - map keys

Returns:

filterEntries

@Deprecated
Map<K,V> filterEntries(Predicate<Map.Entry<K,V>> predicate)

Deprecated.

Returns a map slice containing the mappings in whose Map.Entry<K, V> entries satisfy a predicate. This operation traverses all map entries with small memory footprint. The returned map is NOT backed by the original map.

Parameters:

predicate -

Returns:

filterValues

@Deprecated
Map<K,V> filterValues(Predicate<V> predicate)

Deprecated.

Returns a map slice containing the mappings in whose values satisfy a predicate. Traverses all map entries with small memory footprint. The returned map is NOT backed by the original map.

Parameters:

predicate -

Returns:

filterKeys

@Deprecated
Map<K,V> filterKeys(Predicate<K> predicate)

Deprecated.

Returns a map slice containing the mappings in whose keys satisfy a predicate. Traverses all map entries with small memory footprint. The returned map is NOT backed by the original map.

Parameters:

predicate -

Returns:

fastRemove

long fastRemove(K... keys)

Removes keys from map by one operation Works faster than RMap.remove but not returning the value associated with key

Parameters:

keys -

Returns:

the number of keys that were removed from the hash, not including specified but non existing keys

fastPut

boolean fastPut(K key,
              V value)

Associates the specified value with the specified key. Works faster than RMap.put but not returning the previous value associated with key

Parameters:

key -

value -

Returns:

true if key is a new key in the hash and value was set. false if key already exists in the hash and the value was updated.

fastPutIfAbsent

boolean fastPutIfAbsent(K key,
                      V value)

readAllKeySet

Set<K> readAllKeySet()

Read all keys at once

Returns:

readAllValues

Collection<V> readAllValues()

Read all values at once

Returns:

readAllEntrySet

Set<Map.Entry<K,V>> readAllEntrySet()

Read all map entries at once

Returns:

entryIterator

@Deprecated
Iterator<Map.Entry<K,V>> entryIterator()

Deprecated.

Use #entrySet().iterator()

keyIterator

@Deprecated
Iterator<K> keyIterator()

Deprecated.

Use #keySet().iterator()

valueIterator

@Deprecated
Iterator<V> valueIterator()

Deprecated.

Use #values().iterator()