org.nustaq.reallive.impl.actors

Class TableSharding

java.lang.Object

org.nustaq.reallive.impl.actors.TableSharding

All Implemented Interfaces:

Serializable, ChangeReceiver, ChangeStream, RealLiveStreamActor, RealLiveTable, SafeChangeStream, SafeRealLiveStreamActor, SafeRealLiveTable

public class TableSharding
extends Object
implements RealLiveTable

Created by moelrue on 06.08.2015. Provides a single view on to a sharded table

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TableSharding(RealLiveTable[] shards, TableDescription desc)

Method Summary

Modifier and Type	Method and Description
org.nustaq.kontraktor.IPromise<Boolean>	add(String key, Object... keyVals)
void	addNode(int[] slots, RealLiveTable shard)
org.nustaq.kontraktor.IPromise<Boolean>	addRecord(Record rec)
org.nustaq.kontraktor.IPromise	atomic(String key, RLFunction<Record,Object> action) apply the function to the record with given key and return the result inside a promise changes to the record inside the function are applied to the real record and a change message is generated.
void	atomicUpdate(RLPredicate<Record> filter, RLFunction<Record,Boolean> action) mass update.
<T> void	forEachWithSpore(org.nustaq.kontraktor.Spore<Record,T> spore)
org.nustaq.kontraktor.IPromise<Record>	get(String key)
org.nustaq.kontraktor.IPromise<TableDescription>	getDescription()
org.nustaq.kontraktor.IPromise<StorageStats>	getStats()
protected RealLiveTable[]	hashAll(String key)
protected RealLiveTable	hashAny(String key)
void	merge(String key, Object... keyVals)
void	mergeRecord(Record rec)
org.nustaq.kontraktor.IPromise	ping()
void	put(String key, Object... keyVals)
void	receive(ChangeMessage change)
void	remove(String key)
void	removeNode(org.nustaq.kontraktor.Actor actorRef)
void	removeTableShard(RealLiveTable shard2Remove)
org.nustaq.kontraktor.IPromise	resizeIfLoadFactorLarger(double loadFactor, long maxGrowBytes)
void	setRecord(Record rec)
org.nustaq.kontraktor.IPromise<Long>	size()
void	stop()
void	subscribe(Subscriber subs)
org.nustaq.kontraktor.IPromise<Record>	take(String key)
void	unsubscribe(Subscriber subs)
void	update(String key, Object... keyVals)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.nustaq.reallive.api.ChangeStream

subscribeOn, subscribeOn

Methods inherited from interface org.nustaq.reallive.api.RealLiveStreamActor

forEach, forEach, map, query

Constructor Detail

TableSharding

public TableSharding(RealLiveTable[] shards,
                     TableDescription desc)

Method Detail

addNode

public void addNode(int[] slots,
                    RealLiveTable shard)

removeTableShard

public void removeTableShard(RealLiveTable shard2Remove)

hashAll

protected RealLiveTable[] hashAll(String key)

hashAny

protected RealLiveTable hashAny(String key)

receive

public void receive(ChangeMessage change)

Specified by:

receive in interface ChangeReceiver

resizeIfLoadFactorLarger

public org.nustaq.kontraktor.IPromise resizeIfLoadFactorLarger(double loadFactor,
                                                               long maxGrowBytes)

Specified by:

resizeIfLoadFactorLarger in interface SafeRealLiveTable

subscribe

public void subscribe(Subscriber subs)

Specified by:

subscribe in interface ChangeStream

unsubscribe

public void unsubscribe(Subscriber subs)

Specified by:

unsubscribe in interface ChangeStream

atomic

public org.nustaq.kontraktor.IPromise atomic(String key,
                                             RLFunction<Record,Object> action)

Description copied from interface: RealLiveTable

apply the function to the record with given key and return the result inside a promise changes to the record inside the function are applied to the real record and a change message is generated. In case the function returns a changemessage (add,putRecord,remove ..), the change message is applied to the original record and broadcasted

Specified by:

atomic in interface RealLiveTable

Returns:

the result of function.

atomicUpdate

public void atomicUpdate(RLPredicate<Record> filter,
                         RLFunction<Record,Boolean> action)

Description copied from interface: RealLiveTable

mass update.

Specified by:

atomicUpdate in interface RealLiveTable

Parameters:

filter - - selects records

action - - function, the function might modify the record using putField. If false is returned, the record is deleted

put

public void put(String key,
                Object... keyVals)

Specified by:

put in interface SafeRealLiveTable

merge

public void merge(String key,
                  Object... keyVals)

Specified by:

merge in interface SafeRealLiveTable

add

public org.nustaq.kontraktor.IPromise<Boolean> add(String key,
                                                   Object... keyVals)

Specified by:

add in interface SafeRealLiveTable

addRecord

public org.nustaq.kontraktor.IPromise<Boolean> addRecord(Record rec)

Specified by:

addRecord in interface SafeRealLiveTable

mergeRecord

public void mergeRecord(Record rec)

Specified by:

mergeRecord in interface SafeRealLiveTable

setRecord

public void setRecord(Record rec)

Specified by:

setRecord in interface SafeRealLiveTable

update

public void update(String key,
                   Object... keyVals)

Specified by:

update in interface SafeRealLiveTable

take

public org.nustaq.kontraktor.IPromise<Record> take(String key)

Specified by:

take in interface SafeRealLiveTable

remove

public void remove(String key)

Specified by:

remove in interface SafeRealLiveTable

forEachWithSpore

public <T> void forEachWithSpore(org.nustaq.kontraktor.Spore<Record,T> spore)

Specified by:

forEachWithSpore in interface RealLiveStreamActor

ping

public org.nustaq.kontraktor.IPromise ping()

Specified by:

ping in interface SafeRealLiveTable

getDescription

public org.nustaq.kontraktor.IPromise<TableDescription> getDescription()

Specified by:

getDescription in interface SafeRealLiveTable

stop

public void stop()

Specified by:

stop in interface SafeRealLiveTable

getStats

public org.nustaq.kontraktor.IPromise<StorageStats> getStats()

Specified by:

getStats in interface SafeRealLiveTable

get

public org.nustaq.kontraktor.IPromise<Record> get(String key)

Specified by:

get in interface SafeRealLiveTable

size

public org.nustaq.kontraktor.IPromise<Long> size()

Specified by:

size in interface SafeRealLiveTable

removeNode

public void removeNode(org.nustaq.kontraktor.Actor actorRef)