io.ray.streaming.state.backend

Class OperatorStateBackend

java.lang.Object

io.ray.streaming.state.backend.AbstractKeyStateBackend

io.ray.streaming.state.backend.OperatorStateBackend

All Implemented Interfaces:

StateStoreManager

public class OperatorStateBackend
extends AbstractKeyStateBackend

OperatorState manager for getting split or union list state.

Field Summary

Fields inherited from class io.ray.streaming.state.backend.AbstractKeyStateBackend

backStorageCache, currentCheckpointId, currentKey, descNamespace, keyGroupIndex, listManagerProxyHashMap, mapManagerProxyHashMap, valueManagerProxyHashMap

Constructor Summary

Constructors

Constructor and Description
OperatorStateBackend(AbstractStateBackend backend)

Method Summary

Modifier and Type	Method and Description
<T> ListState<T>	getSplitListState(ListStateDescriptor<T> stateDescriptor) get spitted List for different operator instance.
<T> ListState<T>	getUnionListState(ListStateDescriptor<T> stateDescriptor) get a union List for different operator instance.
protected <T> ListStateStoreManagerProxy<T>	newListStateStoreManagerProxy(ListStateDescriptor<T> stateDescriptor)
void	setCurrentKey(Object currentKey)

Methods inherited from class io.ray.streaming.state.backend.AbstractKeyStateBackend

ackCommit, commit, finish, get, getBackend, getBackendType, getBackStorage, getBackStorage, getCheckpointId, getCurrentKey, getKeyGroupIndex, getStateStrategy, put, rollBack, setCheckpointId, setContext, setKeyGroupIndex

Methods inherited from class java.lang.Object

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

Constructor Detail

OperatorStateBackend

public OperatorStateBackend(AbstractStateBackend backend)

Method Detail

setCurrentKey

public void setCurrentKey(Object currentKey)

Specified by:

setCurrentKey in class AbstractKeyStateBackend

newListStateStoreManagerProxy

protected <T> ListStateStoreManagerProxy<T> newListStateStoreManagerProxy(ListStateDescriptor<T> stateDescriptor)

getSplitListState

public <T> ListState<T> getSplitListState(ListStateDescriptor<T> stateDescriptor)

get spitted List for different operator instance.

getUnionListState

public <T> ListState<T> getUnionListState(ListStateDescriptor<T> stateDescriptor)

get a union List for different operator instance.