Package org.springframework.data.redis.connection.jedis

Class JedisClusterConnection

java.lang.Object

org.springframework.data.redis.connection.jedis.JedisClusterConnection

All Implemented Interfaces:

AutoCloseable, DefaultedRedisClusterConnection, DefaultedRedisConnection, RedisClusterCommands, RedisClusterCommandsProvider, RedisClusterConnection, RedisClusterServerCommands, RedisCommands, RedisCommandsProvider, RedisConnection, RedisConnectionCommands, RedisGeoCommands, RedisHashCommands, RedisHyperLogLogCommands, RedisKeyCommands, RedisListCommands, RedisPubSubCommands, RedisScriptingCommands, RedisServerCommands, RedisSetCommands, RedisStreamCommands, RedisStringCommands, RedisTxCommands, RedisZSetCommands

public class JedisClusterConnection
extends Object
implements RedisClusterConnection

RedisClusterConnection implementation on top of JedisCluster.
Uses the native JedisCluster api where possible and falls back to direct node communication using Jedis where needed.

This class is not Thread-safe and instances should not be shared across threads.

Since:

1.7

Author:

Christoph Strobl, Mark Paluch, Ninad Divadkar, Tao Chen, Chen Guanqun, Pavel Khokhlov, Liming Deng, John Blum

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static interface	JedisClusterConnection.JedisClusterCommandCallback<T>	Jedis specific ClusterCommandExecutor.ClusterCommandCallback.
static class	JedisClusterConnection.JedisClusterTopologyProvider	Jedis specific implementation of ClusterTopologyProvider.
protected static interface	JedisClusterConnection.JedisMultiKeyClusterCommandCallback<T>	Jedis specific ClusterCommandExecutor.MultiKeyClusterCommandCallback.

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisClusterCommands

RedisClusterCommands.AddSlots

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisGeoCommands

RedisGeoCommands.DistanceUnit, RedisGeoCommands.GeoCommandArgs, RedisGeoCommands.GeoLocation<T>, RedisGeoCommands.GeoRadiusCommandArgs, RedisGeoCommands.GeoSearchCommandArgs, RedisGeoCommands.GeoSearchStoreCommandArgs

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisListCommands

RedisListCommands.Direction, RedisListCommands.Position

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisServerCommands

RedisServerCommands.FlushOption, RedisServerCommands.MigrateOption, RedisServerCommands.ShutdownOption

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisStreamCommands

RedisStreamCommands.XAddOptions, RedisStreamCommands.XClaimOptions, RedisStreamCommands.XPendingOptions

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisStringCommands

RedisStringCommands.BitOperation, RedisStringCommands.SetOption

Nested classes/interfaces inherited from interface org.springframework.data.redis.connection.RedisZSetCommands

RedisZSetCommands.Limit, RedisZSetCommands.Range, RedisZSetCommands.ZAddArgs

Constructor Summary

Constructors

Constructor	Description
JedisClusterConnection(redis.clients.jedis.JedisCluster cluster)	Create new JedisClusterConnection utilizing native connections via JedisCluster.
JedisClusterConnection(redis.clients.jedis.JedisCluster cluster, ClusterCommandExecutor executor)	Create new JedisClusterConnection utilizing native connections via JedisCluster running commands across the cluster via given ClusterCommandExecutor.
JedisClusterConnection(redis.clients.jedis.JedisCluster cluster, ClusterCommandExecutor executor, ClusterTopologyProvider topologyProvider)	Create new JedisClusterConnection utilizing native connections via JedisCluster running commands across the cluster via given ClusterCommandExecutor and using the given ClusterTopologyProvider.

Method Summary

Modifier and Type	Method	Description
void	close()	Closes or quits the connection.
List<Object>	closePipeline()	Executes the commands in the pipeline and returns their result.
void	clusterAddSlots(RedisClusterNode node, int... slots)	Assign slots to given RedisClusterNode.
void	clusterAddSlots(RedisClusterNode node, RedisClusterNode.SlotRange range)	Assign RedisClusterNode.SlotRange.getSlotsArray() to given RedisClusterNode.
RedisClusterCommands	clusterCommands()	Get RedisGeoCommands.
Long	clusterCountKeysInSlot(int slot)	Count the number of keys assigned to one slot.
void	clusterDeleteSlots(RedisClusterNode node, int... slots)	Remove slots from RedisClusterNode.
void	clusterDeleteSlotsInRange(RedisClusterNode node, RedisClusterNode.SlotRange range)	Removes RedisClusterNode.SlotRange.getSlotsArray() from given RedisClusterNode.
void	clusterForget(RedisClusterNode node)	Remove given node from cluster.
ClusterInfo	clusterGetClusterInfo()	Get cluster information.
List<byte[]>	clusterGetKeysInSlot(int slot, Integer count)	Get keys served by slot.
Map<RedisClusterNode,Collection<RedisClusterNode>>	clusterGetMasterReplicaMap()	Retrieve information about masters and their connected replicas.
RedisClusterNode	clusterGetNodeForKey(byte[] key)	Find the RedisClusterNode serving given key.
RedisClusterNode	clusterGetNodeForSlot(int slot)	Find the RedisClusterNode serving given slot.
Set<RedisClusterNode>	clusterGetNodes()	Retrieve cluster node information such as id, host, port and slots.
Set<RedisClusterNode>	clusterGetReplicas(RedisClusterNode master)	Retrieve information about connected replicas for given master node.
Integer	clusterGetSlotForKey(byte[] key)	Find the slot for a given key.
void	clusterMeet(RedisClusterNode node)	Add given node to cluster.
void	clusterReplicate(RedisClusterNode master, RedisClusterNode replica)	Assign a replica to given master.
void	clusterSetSlot(RedisClusterNode node, int slot, RedisClusterCommands.AddSlots mode)
RedisCommands	commands()	Get RedisCommands.
protected DataAccessException	convertJedisAccessException(Exception cause)
void	discard()	Discard all commands issued after RedisTxCommands.multi().
byte[]	echo(byte[] message)	Returns message via server roundtrip.
List<Object>	exec()	Executes all queued commands in a transaction started with RedisTxCommands.multi().
Object	execute(String command, byte[]... args)	Native or raw execution of the given Redis command along with the given arguments.
<T> T	execute(String command, byte[] key, Collection<byte[]> args)	Execute the given command for the key provided potentially appending args.
<T> List<T>	execute(String command, Collection<byte[]> keys, Collection<byte[]> args)	Execute the given command for each key in keys provided appending all args on each invocation.
RedisGeoCommands	geoCommands()	Get RedisGeoCommands.
protected redis.clients.jedis.JedisCluster	getCluster()
protected ClusterCommandExecutor	getClusterCommandExecutor()
redis.clients.jedis.JedisCluster	getNativeConnection()	Returns the native connection (the underlying library/driver object).
RedisSentinelConnection	getSentinelConnection()
Subscription	getSubscription()	Returns the current subscription for this connection or null if the connection is not subscribed.
protected ClusterTopologyProvider	getTopologyProvider()
RedisHashCommands	hashCommands()	Get RedisHashCommands.
RedisHyperLogLogCommands	hyperLogLogCommands()	Get RedisHyperLogLogCommands.
boolean	isClosed()	Indicates whether the underlying connection is closed or not.
boolean	isPipelined()	Indicates whether the connection is currently pipelined or not.
boolean	isQueueing()	Indicates whether the connection is in "queue"(or "MULTI") mode or not.
boolean	isSubscribed()	Indicates whether the current connection is subscribed (to at least one channel) or not.
RedisKeyCommands	keyCommands()	Get RedisKeyCommands.
Set<byte[]>	keys(RedisClusterNode node, byte[] pattern)
RedisListCommands	listCommands()	Get RedisListCommands.
void	multi()	Mark the start of a transaction block.
void	openPipeline()	Activates the pipeline mode for this connection.
String	ping()	Test connection.
String	ping(RedisClusterNode node)
void	pSubscribe(MessageListener listener, byte[]... patterns)	Subscribes the connection to all channels matching the given patterns.
Long	publish(byte[] channel, byte[] message)	Publishes the given message to the given channel.
byte[]	randomKey(RedisClusterNode node)
void	rewriteConfig()	Rewrites the redis.conf file.
Cursor<byte[]>	scan(RedisClusterNode node, ScanOptions options)	Use a Cursor to iterate over keys.
RedisScriptingCommands	scriptingCommands()	Get RedisScriptingCommands.
void	select(int dbIndex)	Select the DB with given positive dbIndex.
RedisClusterServerCommands	serverCommands()	Get RedisServerCommands.
RedisSetCommands	setCommands()	Get RedisSetCommands.
RedisStreamCommands	streamCommands()	Get RedisStreamCommands.
RedisStringCommands	stringCommands()	Get RedisStringCommands.
void	subscribe(MessageListener listener, byte[]... channels)	Subscribes the connection to the given channels.
void	unwatch()	Flushes all the previously RedisTxCommands.watch(byte[]...) keys.
void	watch(byte[]... keys)	Watch given keys for modifications during transaction started with RedisTxCommands.multi().
RedisZSetCommands	zSetCommands()	Get RedisZSetCommands.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.springframework.data.redis.connection.DefaultedRedisClusterConnection

bgReWriteAof, bgSave, dbSize, flushAll, flushAll, flushDb, flushDb, getClientList, getConfig, info, info, lastSave, resetConfigStats, rewriteConfig, save, setConfig, shutdown, time, time

Methods inherited from interface org.springframework.data.redis.connection.DefaultedRedisConnection

append, bgReWriteAof, bgSave, bitCount, bitCount, bitField, bitOp, bitPos, bLMove, bLPop, bRPop, bRPopLPush, bZPopMax, bZPopMin, copy, dbSize, decr, decrBy, del, dump, encodingOf, eval, evalSha, evalSha, exists, exists, expire, expireAt, flushAll, flushAll, flushDb, flushDb, geoAdd, geoAdd, geoAdd, geoDist, geoDist, geoHash, geoPos, geoRadius, geoRadius, geoRadiusByMember, geoRadiusByMember, geoRemove, geoSearch, geoSearchStore, get, getBit, getClientList, getClientName, getConfig, getDel, getEx, getRange, getSet, hDel, hExists, hGet, hGetAll, hIncrBy, hIncrBy, hKeys, hLen, hMGet, hMSet, hRandField, hRandField, hRandFieldWithValues, hRandFieldWithValues, hScan, hSet, hSetNX, hStrLen, hVals, idletime, incr, incrBy, incrBy, info, info, keys, killClient, lastSave, lIndex, lInsert, lLen, lMove, lPop, lPop, lPos, lPush, lPushX, lRange, lRem, lSet, lTrim, mGet, migrate, migrate, move, mSet, mSetNX, persist, pExpire, pExpireAt, pfAdd, pfCount, pfMerge, pSetEx, pTtl, pTtl, randomKey, refcount, rename, renameNX, replicaOf, replicaOfNoOne, resetConfigStats, restore, rPop, rPop, rPopLPush, rPush, rPushX, sAdd, save, scan, sCard, scriptExists, scriptFlush, scriptKill, scriptLoad, sDiff, sDiffStore, set, set, setBit, setClientName, setConfig, setEx, setNX, setRange, shutdown, shutdown, sInter, sInterStore, sIsMember, sMembers, sMIsMember, sMove, sort, sort, sPop, sPop, sRandMember, sRandMember, sRem, sScan, strLen, sUnion, sUnionStore, time, time, touch, ttl, ttl, type, unlink, xAck, xAdd, xClaim, xClaimJustId, xDel, xGroupCreate, xGroupCreate, xGroupDelConsumer, xGroupDestroy, xInfo, xInfoConsumers, xInfoGroups, xLen, xPending, xPending, xRange, xRange, xRead, xRead, xReadGroup, xReadGroup, xRevRange, xRevRange, xTrim, xTrim, zAdd, zAdd, zCard, zCount, zCount, zDiff, zDiffStore, zDiffWithScores, zIncrBy, zInter, zInterStore, zInterStore, zInterStore, zInterWithScores, zInterWithScores, zInterWithScores, zLexCount, zMScore, zPopMax, zPopMax, zPopMin, zPopMin, zRandMember, zRandMember, zRandMemberWithScore, zRandMemberWithScore, zRange, zRangeByLex, zRangeByScore, zRangeByScore, zRangeByScore, zRangeByScoreWithScores, zRangeStoreByLex, zRangeStoreByScore, zRangeStoreRevByLex, zRangeStoreRevByScore, zRangeWithScores, zRank, zRem, zRemRange, zRemRangeByLex, zRemRangeByScore, zRemRangeByScore, zRevRange, zRevRangeByLex, zRevRangeByScore, zRevRangeByScoreWithScores, zRevRangeWithScores, zRevRank, zScan, zScore, zUnion, zUnionStore, zUnionStore, zUnionStore, zUnionWithScores, zUnionWithScores, zUnionWithScores

Methods inherited from interface org.springframework.data.redis.connection.RedisGeoCommands

geoAdd, geoRadiusByMember

Methods inherited from interface org.springframework.data.redis.connection.RedisKeyCommands

restore, scan

Methods inherited from interface org.springframework.data.redis.connection.RedisListCommands

lPos

Methods inherited from interface org.springframework.data.redis.connection.RedisStreamCommands

xAck, xAdd, xAdd, xClaim, xDel, xGroupDelConsumer, xPending, xPending, xPending, xPending, xPending

Methods inherited from interface org.springframework.data.redis.connection.RedisStringCommands

bitPos

Methods inherited from interface org.springframework.data.redis.connection.RedisZSetCommands

zAdd, zAdd, zRangeByLex, zRangeByLex, zRangeByScore, zRangeByScore, zRangeByScore, zRangeByScoreWithScores, zRangeByScoreWithScores, zRangeByScoreWithScores, zRangeStoreByLex, zRangeStoreByScore, zRangeStoreRevByLex, zRangeStoreRevByScore, zRevRangeByLex, zRevRangeByLex, zRevRangeByScore, zRevRangeByScore, zRevRangeByScore, zRevRangeByScoreWithScores, zRevRangeByScoreWithScores, zRevRangeByScoreWithScores

Constructor Details

JedisClusterConnection

public JedisClusterConnection(redis.clients.jedis.JedisCluster cluster)

Create new JedisClusterConnection utilizing native connections via JedisCluster.

Parameters:

cluster - must not be null.

JedisClusterConnection

public JedisClusterConnection(redis.clients.jedis.JedisCluster cluster,
 ClusterCommandExecutor executor)

Create new JedisClusterConnection utilizing native connections via JedisCluster running commands across the cluster via given ClusterCommandExecutor. Uses JedisClusterConnection.JedisClusterTopologyProvider by default.

Parameters:

cluster - must not be null.

executor - must not be null.

JedisClusterConnection

public JedisClusterConnection(redis.clients.jedis.JedisCluster cluster,
 ClusterCommandExecutor executor,
 ClusterTopologyProvider topologyProvider)

Create new JedisClusterConnection utilizing native connections via JedisCluster running commands across the cluster via given ClusterCommandExecutor and using the given ClusterTopologyProvider.

Parameters:

cluster - must not be null.

executor - must not be null.

topologyProvider - must not be null.

Since:

2.2

Method Details

execute

@Nullable
public Object execute(String command,
 byte[]... args)

Description copied from interface: RedisCommands

Native or raw execution of the given Redis command along with the given arguments.

The command is executed as is, with as little interpretation as possible - it is up to the caller to take care of any processing of arguments or the result.

Specified by:

execute in interface RedisCommands

Parameters:

command - Redis command to execute; must not be null.

args - optional array of command arguments; may be empty;

Returns:

the execution result; may be null.

execute

@Nullable
public <T> T execute(String command,
 byte[] key,
 Collection<byte[]> args)

Description copied from interface: RedisClusterConnection

Execute the given command for the key provided potentially appending args.
This method, other than RedisCommands.execute(String, byte[]...), dispatches the command to the key serving master node.

 
 // SET foo bar EX 10 NX
 execute("SET", "foo".getBytes(), asBinaryList("bar", "EX", 10, "NX"))
 
 

Specified by:

execute in interface RedisClusterConnection

Parameters:

command - must not be null.

key - must not be null.

args - must not be null.

Returns:

command result as delivered by the underlying Redis driver. Can be null.

execute

@Nullable
public <T> List<T> execute(String command,
 Collection<byte[]> keys,
 Collection<byte[]> args)

Execute the given command for each key in keys provided appending all args on each invocation.
This method, other than execute(String, byte[]...), dispatches the command to the key serving master node and appends the key as first command argument to the command. keys are not required to share the same slot for single-key commands. Multi-key commands carrying their keys in args still require to share the same slot as the key.

 
 // SET foo bar EX 10 NX
 execute("SET", "foo".getBytes(), asBinaryList("bar", "EX", 10, "NX"))
 
 

Parameters:

command - must not be null.

keys - must not be null.

args - must not be null.

Returns:

command result as delivered by the underlying Redis driver. Can be null.

Since:

2.1

commands

public RedisCommands commands()

Description copied from interface: RedisCommandsProvider

Get RedisCommands.

Specified by:

commands in interface RedisCommandsProvider

Returns:

never null.

clusterCommands

public RedisClusterCommands clusterCommands()

Description copied from interface: RedisClusterCommandsProvider

Get RedisGeoCommands.

Specified by:

clusterCommands in interface RedisClusterCommandsProvider

Returns:

never null.

geoCommands

public RedisGeoCommands geoCommands()

Description copied from interface: RedisCommandsProvider

Get RedisGeoCommands.

Specified by:

geoCommands in interface RedisCommandsProvider

Returns:

never null.

hashCommands

public RedisHashCommands hashCommands()

Description copied from interface: RedisCommandsProvider

Get RedisHashCommands.

Specified by:

hashCommands in interface RedisCommandsProvider

Returns:

never null.

hyperLogLogCommands

public RedisHyperLogLogCommands hyperLogLogCommands()

Description copied from interface: RedisCommandsProvider

Get RedisHyperLogLogCommands.

Specified by:

hyperLogLogCommands in interface RedisCommandsProvider

Returns:

never null.

keyCommands

public RedisKeyCommands keyCommands()

Description copied from interface: RedisCommandsProvider

Get RedisKeyCommands.

Specified by:

keyCommands in interface RedisCommandsProvider

Returns:

never null.

listCommands

public RedisListCommands listCommands()

Description copied from interface: RedisCommandsProvider

Get RedisListCommands.

Specified by:

listCommands in interface RedisCommandsProvider

Returns:

never null.

setCommands

public RedisSetCommands setCommands()

Description copied from interface: RedisCommandsProvider

Get RedisSetCommands.

Specified by:

setCommands in interface RedisCommandsProvider

Returns:

never null.

serverCommands

public RedisClusterServerCommands serverCommands()

Description copied from interface: RedisCommandsProvider

Get RedisServerCommands.

Specified by:

serverCommands in interface RedisClusterCommandsProvider

Specified by:

serverCommands in interface RedisCommandsProvider

Returns:

never null.

streamCommands

public RedisStreamCommands streamCommands()

Description copied from interface: RedisCommandsProvider

Get RedisStreamCommands.

Specified by:

streamCommands in interface RedisCommandsProvider

Returns:

never null.

stringCommands

public RedisStringCommands stringCommands()

Description copied from interface: RedisCommandsProvider

Get RedisStringCommands.

Specified by:

stringCommands in interface RedisCommandsProvider

Returns:

never null.

zSetCommands

public RedisZSetCommands zSetCommands()

Description copied from interface: RedisCommandsProvider

Get RedisZSetCommands.

Specified by:

zSetCommands in interface RedisCommandsProvider

Returns:

never null.

scriptingCommands

public RedisScriptingCommands scriptingCommands()

Description copied from interface: RedisCommandsProvider

Get RedisScriptingCommands.

Specified by:

scriptingCommands in interface RedisCommandsProvider

Returns:

never null.

keys

public Set<byte[]> keys(RedisClusterNode node,
 byte[] pattern)

Specified by:

keys in interface RedisClusterConnection

Parameters:

node - must not be null.

pattern - must not be null.

Returns:

null when used in pipeline / transaction.

See Also:

• RedisKeyCommands.keys(byte[])

scan

public Cursor<byte[]> scan(RedisClusterNode node,
 ScanOptions options)

Description copied from interface: RedisClusterConnection

Use a Cursor to iterate over keys.

Specified by:

scan in interface RedisClusterConnection

Parameters:

node - must not be null.

options - must not be null.

Returns:

never null.

See Also:

• Redis Documentation: SCAN

randomKey

public byte[] randomKey(RedisClusterNode node)

Specified by:

randomKey in interface RedisClusterConnection

Parameters:

node - must not be null.

Returns:

null when no keys stored at node or when used in pipeline / transaction.

See Also:

• RedisKeyCommands.randomKey()

multi

public void multi()

Description copied from interface: RedisTxCommands

Mark the start of a transaction block.
Commands will be queued and can then be executed by calling RedisTxCommands.exec() or rolled back using RedisTxCommands.discard()

Specified by:

multi in interface RedisTxCommands

See Also:

• Redis Documentation: MULTI

exec

public List<Object> exec()

Description copied from interface: RedisTxCommands

Executes all queued commands in a transaction started with RedisTxCommands.multi().
If used along with RedisTxCommands.watch(byte[]...) the operation will fail if any of watched keys has been modified.

Specified by:

exec in interface RedisTxCommands

Returns:

List of replies for each executed command.

See Also:

• Redis Documentation: EXEC

discard

public void discard()

Description copied from interface: RedisTxCommands

Discard all commands issued after RedisTxCommands.multi().

Specified by:

discard in interface RedisTxCommands

See Also:

• Redis Documentation: DISCARD

watch

public void watch(byte[]... keys)

Description copied from interface: RedisTxCommands

Watch given keys for modifications during transaction started with RedisTxCommands.multi().

Specified by:

watch in interface RedisTxCommands

Parameters:

keys - must not be null.

See Also:

• Redis Documentation: WATCH

unwatch

public void unwatch()

Description copied from interface: RedisTxCommands

Flushes all the previously RedisTxCommands.watch(byte[]...) keys.

Specified by:

unwatch in interface RedisTxCommands

See Also:

• Redis Documentation: UNWATCH

isSubscribed

public boolean isSubscribed()

Description copied from interface: RedisPubSubCommands

Indicates whether the current connection is subscribed (to at least one channel) or not.

Specified by:

isSubscribed in interface RedisPubSubCommands

Returns:

true if the connection is subscribed, false otherwise

getSubscription

public Subscription getSubscription()

Description copied from interface: RedisPubSubCommands

Returns the current subscription for this connection or null if the connection is not subscribed.

Specified by:

getSubscription in interface RedisPubSubCommands

Returns:

the current subscription, null if none is available.

publish

public Long publish(byte[] channel,
 byte[] message)

Description copied from interface: RedisPubSubCommands

Publishes the given message to the given channel.

Specified by:

publish in interface RedisPubSubCommands

Parameters:

channel - the channel to publish to. Must not be null.

message - message to publish. Must not be null.

Returns:

the number of clients that received the message or null when used in pipeline / transaction.

See Also:

• Redis Documentation: PUBLISH

subscribe

public void subscribe(MessageListener listener,
 byte[]... channels)

Description copied from interface: RedisPubSubCommands

Subscribes the connection to the given channels. Once subscribed, a connection enters listening mode and can only subscribe to other channels or unsubscribe. No other commands are accepted until the connection is unsubscribed.

Note that this operation is blocking and the current thread starts waiting for new messages immediately.

Specified by:

subscribe in interface RedisPubSubCommands

Parameters:

listener - message listener, must not be null.

channels - channel names, must not be null.

See Also:

• Redis Documentation: SUBSCRIBE

pSubscribe

public void pSubscribe(MessageListener listener,
 byte[]... patterns)

Description copied from interface: RedisPubSubCommands

Subscribes the connection to all channels matching the given patterns. Once subscribed, a connection enters listening mode and can only subscribe to other channels or unsubscribe. No other commands are accepted until the connection is unsubscribed.

Note that this operation is blocking and the current thread starts waiting for new messages immediately.

Specified by:

pSubscribe in interface RedisPubSubCommands

Parameters:

listener - message listener, must not be null.

patterns - channel name patterns, must not be null.

See Also:

• Redis Documentation: PSUBSCRIBE

select

public void select(int dbIndex)

Description copied from interface: RedisConnectionCommands

Select the DB with given positive dbIndex.

Specified by:

select in interface RedisConnectionCommands

Parameters:

dbIndex - the database index.

See Also:

• Redis Documentation: SELECT

echo

public byte[] echo(byte[] message)

Description copied from interface: RedisConnectionCommands

Returns message via server roundtrip.

Specified by:

echo in interface RedisConnectionCommands

Parameters:

message - the message to echo.

Returns:

the message or null when used in pipeline / transaction.

See Also:

• Redis Documentation: ECHO

ping

@Nullable
public String ping()

Description copied from interface: RedisConnectionCommands

Test connection.

Specified by:

ping in interface RedisConnectionCommands

Returns:

Server response message - usually PONG. null when used in pipeline / transaction.

See Also:

• Redis Documentation: PING

ping

public String ping(RedisClusterNode node)

Specified by:

ping in interface RedisClusterConnection

Parameters:

node - must not be null.

Returns:

null when used in pipeline / transaction.

See Also:

• RedisConnectionCommands.ping()

clusterSetSlot

public void clusterSetSlot(RedisClusterNode node,
 int slot,
 RedisClusterCommands.AddSlots mode)

Specified by:

clusterSetSlot in interface RedisClusterCommands

Parameters:

node - must not be null.

mode - must not benull.

See Also:

• Redis Documentation: CLUSTER SETSLOT

clusterGetKeysInSlot

public List<byte[]> clusterGetKeysInSlot(int slot,
 Integer count)

Description copied from interface: RedisClusterCommands

Get keys served by slot.

Specified by:

clusterGetKeysInSlot in interface RedisClusterCommands

count - must not be null.

Returns:

See Also:

• Redis Documentation: CLUSTER GETKEYSINSLOT

clusterAddSlots

public void clusterAddSlots(RedisClusterNode node,
 int... slots)

Description copied from interface: RedisClusterCommands

Assign slots to given RedisClusterNode.

Specified by:

clusterAddSlots in interface RedisClusterCommands

Parameters:

node - must not be null.

See Also:

• Redis Documentation: CLUSTER ADDSLOTS

clusterAddSlots

public void clusterAddSlots(RedisClusterNode node,
 RedisClusterNode.SlotRange range)

Description copied from interface: RedisClusterCommands

Assign RedisClusterNode.SlotRange.getSlotsArray() to given RedisClusterNode.

Specified by:

clusterAddSlots in interface RedisClusterCommands

Parameters:

node - must not be null.

range - must not be null.

See Also:

• Redis Documentation: CLUSTER ADDSLOTS

clusterCountKeysInSlot

public Long clusterCountKeysInSlot(int slot)

Description copied from interface: RedisClusterCommands

Count the number of keys assigned to one slot.

Specified by:

clusterCountKeysInSlot in interface RedisClusterCommands

Returns:

See Also:

• Redis Documentation: CLUSTER COUNTKEYSINSLOT

clusterDeleteSlots

public void clusterDeleteSlots(RedisClusterNode node,
 int... slots)

Description copied from interface: RedisClusterCommands

Remove slots from RedisClusterNode.

Specified by:

clusterDeleteSlots in interface RedisClusterCommands

Parameters:

node - must not be null.

See Also:

• Redis Documentation: CLUSTER DELSLOTS

clusterDeleteSlotsInRange

public void clusterDeleteSlotsInRange(RedisClusterNode node,
 RedisClusterNode.SlotRange range)

Description copied from interface: RedisClusterCommands

Removes RedisClusterNode.SlotRange.getSlotsArray() from given RedisClusterNode.

Specified by:

clusterDeleteSlotsInRange in interface RedisClusterCommands

Parameters:

node - must not be null.

range - must not be null.

See Also:

• Redis Documentation: CLUSTER DELSLOTS

clusterForget

public void clusterForget(RedisClusterNode node)

Description copied from interface: RedisClusterCommands

Remove given node from cluster.

Specified by:

clusterForget in interface RedisClusterCommands

Parameters:

node - must not be null.

See Also:

• Redis Documentation: CLUSTER FORGET

clusterMeet

public void clusterMeet(RedisClusterNode node)

Description copied from interface: RedisClusterCommands

Add given node to cluster.

Specified by:

clusterMeet in interface RedisClusterCommands

Parameters:

node - must contain host and RedisNode.getPort() and must not be null.

See Also:

• Redis Documentation: CLUSTER MEET

clusterReplicate

public void clusterReplicate(RedisClusterNode master,
 RedisClusterNode replica)

Description copied from interface: RedisClusterCommands

Assign a replica to given master.

Specified by:

clusterReplicate in interface RedisClusterCommands

Parameters:

master - must not be null.

replica - must not be null.

See Also:

• Redis Documentation: CLUSTER REPLICATE

clusterGetSlotForKey

public Integer clusterGetSlotForKey(byte[] key)

Description copied from interface: RedisClusterCommands

Find the slot for a given key.

Specified by:

clusterGetSlotForKey in interface RedisClusterCommands

Parameters:

key - must not be null.

Returns:

See Also:

• Redis Documentation: CLUSTER KEYSLOT

clusterGetNodeForKey

public RedisClusterNode clusterGetNodeForKey(byte[] key)

Description copied from interface: RedisClusterCommands

Find the RedisClusterNode serving given key.

Specified by:

clusterGetNodeForKey in interface RedisClusterCommands

Parameters:

key - must not be null.

Returns:

clusterGetNodeForSlot

@Nullable
public RedisClusterNode clusterGetNodeForSlot(int slot)

Description copied from interface: RedisClusterCommands

Find the RedisClusterNode serving given slot.

Specified by:

clusterGetNodeForSlot in interface RedisClusterCommands

Returns:

clusterGetNodes

public Set<RedisClusterNode> clusterGetNodes()

Description copied from interface: RedisClusterCommands

Retrieve cluster node information such as id, host, port and slots.

Specified by:

clusterGetNodes in interface RedisClusterCommands

Returns:

never null.

See Also:

• Redis Documentation: CLUSTER NODES

clusterGetReplicas

public Set<RedisClusterNode> clusterGetReplicas(RedisClusterNode master)

Description copied from interface: RedisClusterCommands

Retrieve information about connected replicas for given master node.

Specified by:

clusterGetReplicas in interface RedisClusterCommands

Parameters:

master - must not be null.

Returns:

never null.

See Also:

• Redis Documentation: CLUSTER REPLICAS

clusterGetMasterReplicaMap

public Map<RedisClusterNode,Collection<RedisClusterNode>> clusterGetMasterReplicaMap()

Description copied from interface: RedisClusterCommands

Retrieve information about masters and their connected replicas.

Specified by:

clusterGetMasterReplicaMap in interface RedisClusterCommands

Returns:

never null.

See Also:

• Redis Documentation: CLUSTER REPLICAS

clusterGetClusterInfo

public ClusterInfo clusterGetClusterInfo()

Description copied from interface: RedisClusterCommands

Get cluster information.

Specified by:

clusterGetClusterInfo in interface RedisClusterCommands

Returns:

See Also:

• Redis Documentation: CLUSTER INFO

convertJedisAccessException

protected DataAccessException convertJedisAccessException(Exception cause)

close

public void close()
           throws DataAccessException

Description copied from interface: RedisConnection

Closes or quits the connection.

Specified by:

close in interface AutoCloseable

Specified by:

close in interface RedisConnection

Throws:

DataAccessException - if the RedisConnection could not be closed.

isClosed

public boolean isClosed()

Description copied from interface: RedisConnection

Indicates whether the underlying connection is closed or not.

Specified by:

isClosed in interface RedisConnection

Returns:

true if the connection is closed, false otherwise.

getNativeConnection

public redis.clients.jedis.JedisCluster getNativeConnection()

Description copied from interface: RedisConnection

Returns the native connection (the underlying library/driver object).

Specified by:

getNativeConnection in interface RedisConnection

Returns:

underlying, native object

isQueueing

public boolean isQueueing()

Description copied from interface: RedisConnection

Indicates whether the connection is in "queue"(or "MULTI") mode or not. When queueing, all commands are postponed until EXEC or DISCARD commands are issued. Since in queueing no results are returned, the connection will return NULL on all operations that interact with the data.

Specified by:

isQueueing in interface RedisConnection

Returns:

true if the connection is in queue/MULTI mode, false otherwise

isPipelined

public boolean isPipelined()

Description copied from interface: RedisConnection

Indicates whether the connection is currently pipelined or not.

Specified by:

isPipelined in interface RedisConnection

Returns:

true if the connection is pipelined, false otherwise

See Also:

• RedisConnection.openPipeline()
• RedisConnection.isQueueing()

openPipeline

public void openPipeline()

Description copied from interface: RedisConnection

Activates the pipeline mode for this connection. When pipelined, all commands return null (the reply is read at the end through RedisConnection.closePipeline(). Calling this method when the connection is already pipelined has no effect. Pipelining is used for issuing commands without requesting the response right away but rather at the end of the batch. While somewhat similar to MULTI, pipelining does not guarantee atomicity - it only tries to improve performance when issuing a lot of commands (such as in batching scenarios).

Note:

Consider doing some performance testing before using this feature since in many cases the performance benefits are minimal yet the impact on usage are not.

Specified by:

openPipeline in interface RedisConnection

See Also:

• RedisTxCommands.multi()

closePipeline

public List<Object> closePipeline()
                           throws RedisPipelineException

Description copied from interface: RedisConnection

Executes the commands in the pipeline and returns their result. If the connection is not pipelined, an empty collection is returned.

Specified by:

closePipeline in interface RedisConnection

Returns:

the result of the executed commands.

Throws:

RedisPipelineException - if the pipeline contains any incorrect/invalid statements

getSentinelConnection

public RedisSentinelConnection getSentinelConnection()

Specified by:

getSentinelConnection in interface RedisConnection

Returns:

the RedisSentinelConnection when using Redis Sentinel.

rewriteConfig

public void rewriteConfig()

Description copied from interface: RedisServerCommands

Rewrites the redis.conf file.

Specified by:

rewriteConfig in interface DefaultedRedisConnection

Specified by:

rewriteConfig in interface RedisServerCommands

See Also:

• Redis Documentation: CONFIG REWRITE

getCluster

protected redis.clients.jedis.JedisCluster getCluster()

getClusterCommandExecutor

protected ClusterCommandExecutor getClusterCommandExecutor()

getTopologyProvider

protected ClusterTopologyProvider getTopologyProvider()