org.redisson.api

Interface RSet<V>

Type Parameters:

V - value

All Superinterfaces:

Collection<V>, Iterable<V>, RCollectionAsync<V>, RExpirable, RExpirableAsync, RObject, RObjectAsync, RSetAsync<V>, RSortable<Set<V>>, RSortableAsync<Set<V>>, Set<V>

All Known Implementing Classes:

RedissonSet, RedissonSetMultimapValues, RedissonTransactionalSet

public interface RSet<V>
extends Set<V>, RExpirable, RSetAsync<V>, RSortable<Set<V>>

Distributed and concurrent implementation of Set

Author:

Nikita Koksharov

Method Summary

Modifier and Type	Method and Description
int	diff(String... names) Diff sets specified by name and write to current set.
RLock	getLock(V value) Returns lock instance associated with value
int	intersection(String... names) Intersection sets specified by name and write to current set.
Iterator<V>	iterator(int count) Returns an iterator over elements in this set.
Iterator<V>	iterator(String pattern) Returns iterator over elements in this set matches pattern.
Iterator<V>	iterator(String pattern, int count) Returns an iterator over elements in this set.
<KOut,VOut> RCollectionMapReduce<V,KOut,VOut>	mapReduce() Returns RMapReduce object associated with this object
boolean	move(String destination, V member) Move a member from this set to the given destination set in.
V	random() Returns random element from set
Set<V>	readAll() Read all elements at once
Set<V>	readDiff(String... names) Diff sets specified by name with current set.
Set<V>	readIntersection(String... names) Intersection sets specified by name with current set without current set state change.
Set<V>	readUnion(String... names) Union sets specified by name with current set without current set state change.
V	removeRandom() Removes and returns random element from set
Set<V>	removeRandom(int amount) Removes and returns random elements from set
int	union(String... names) Union sets specified by name and write to current set.

Methods inherited from interface java.util.Set

add, addAll, clear, contains, containsAll, equals, hashCode, isEmpty, iterator, remove, removeAll, retainAll, size, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface org.redisson.api.RExpirable

clearExpire, expire, expireAt, expireAt, remainTimeToLive

Methods inherited from interface org.redisson.api.RObject

copy, delete, dump, getCodec, getName, isExists, migrate, move, rename, renamenx, restore, restore, restoreAndReplace, restoreAndReplace, touch, unlink

Methods inherited from interface org.redisson.api.RSetAsync

diffAsync, intersectionAsync, moveAsync, randomAsync, readAllAsync, readDiffAsync, readIntersectionAsync, readUnionAsync, removeRandomAsync, removeRandomAsync, unionAsync

Methods inherited from interface org.redisson.api.RCollectionAsync

addAllAsync, addAsync, containsAllAsync, containsAsync, removeAllAsync, removeAsync, retainAllAsync, sizeAsync

Methods inherited from interface org.redisson.api.RExpirableAsync

clearExpireAsync, expireAsync, expireAtAsync, expireAtAsync, remainTimeToLiveAsync

Methods inherited from interface org.redisson.api.RObjectAsync

copyAsync, deleteAsync, dumpAsync, isExistsAsync, migrateAsync, moveAsync, renameAsync, renamenxAsync, restoreAndReplaceAsync, restoreAndReplaceAsync, restoreAsync, restoreAsync, touchAsync, unlinkAsync

Methods inherited from interface org.redisson.api.RSortable

readSort, readSort, readSort, readSort, readSort, readSort, sortTo, sortTo, sortTo, sortTo, sortTo, sortTo

Methods inherited from interface org.redisson.api.RSortableAsync

readSortAsync, readSortAsync, readSortAsync, readSortAsync, readSortAsync, readSortAsync, sortToAsync, sortToAsync, sortToAsync, sortToAsync, sortToAsync, sortToAsync

Method Detail

getLock

RLock getLock(V value)

Returns lock instance associated with value

Parameters:

value - - set value

Returns:

lock

iterator

Iterator<V> iterator(int count)

Returns an iterator over elements in this set. Elements are loaded in batch. Batch size is defined by count param.

Parameters:

count - - size of elements batch

Returns:

iterator

iterator

Iterator<V> iterator(String pattern,
                     int count)

Returns an iterator over elements in this set. Elements are loaded in batch. Batch size is defined by count param. If pattern is not null then only elements match this pattern are loaded.

Parameters:

pattern - - search pattern

count - - size of elements batch

Returns:

iterator

iterator

Iterator<V> iterator(String pattern)

Returns iterator over elements in this set matches pattern.

Parameters:

pattern - - search pattern

Returns:

iterator

mapReduce

<KOut,VOut> RCollectionMapReduce<V,KOut,VOut> mapReduce()

Returns RMapReduce object associated with this object

Type Parameters:

KOut - output key

VOut - output value

Returns:

MapReduce instance

removeRandom

Set<V> removeRandom(int amount)

Removes and returns random elements from set

Parameters:

amount - of random values

Returns:

random values

removeRandom

V removeRandom()

Removes and returns random element from set

Returns:

value

random

V random()

Returns random element from set

Returns:

value

move

boolean move(String destination,
             V member)

Move a member from this set to the given destination set in.

Parameters:

destination - the destination set

member - the member to move

Returns:

true if the element is moved, false if the element is not a member of this set or no operation was performed

readAll

Set<V> readAll()

Read all elements at once

Returns:

values

union

int union(String... names)

Union sets specified by name and write to current set. If current set already exists, it is overwritten.

Parameters:

names - - name of sets

Returns:

size of union

readUnion

Set<V> readUnion(String... names)

Union sets specified by name with current set without current set state change.

Parameters:

names - - name of sets

Returns:

values

diff

int diff(String... names)

Diff sets specified by name and write to current set. If current set already exists, it is overwritten.

Parameters:

names - - name of sets

Returns:

values

readDiff

Set<V> readDiff(String... names)

Diff sets specified by name with current set. Without current set state change.

Parameters:

names - - name of sets

Returns:

values

intersection

int intersection(String... names)

Intersection sets specified by name and write to current set. If current set already exists, it is overwritten.

Parameters:

names - - name of sets

Returns:

size of intersection

readIntersection

Set<V> readIntersection(String... names)

Intersection sets specified by name with current set without current set state change.

Parameters:

names - - name of sets

Returns:

values