org.apache.flink.contrib.streaming.state

Class RocksDBFoldingState<K,N,T,ACC>

java.lang.Object

org.apache.flink.contrib.streaming.state.AbstractRocksDBState<K,N,ACC,org.apache.flink.api.common.state.FoldingState<T,ACC>>

org.apache.flink.contrib.streaming.state.RocksDBFoldingState<K,N,T,ACC>

Type Parameters:

K - The type of the key.

N - The type of the namespace.

T - The type of the values that can be folded into the state.

ACC - The type of the value in the folding state.

All Implemented Interfaces:

org.apache.flink.api.common.state.AppendingState<T,ACC>, org.apache.flink.api.common.state.FoldingState<T,ACC>, org.apache.flink.api.common.state.State, org.apache.flink.runtime.state.internal.InternalAppendingState<K,N,T,ACC,ACC>, org.apache.flink.runtime.state.internal.InternalFoldingState<K,N,T,ACC>, org.apache.flink.runtime.state.internal.InternalKvState<K,N,ACC>

Deprecated.

will be removed in a future version

@Deprecated
public class RocksDBFoldingState<K,N,T,ACC>
extends AbstractRocksDBState<K,N,ACC,org.apache.flink.api.common.state.FoldingState<T,ACC>>
implements org.apache.flink.runtime.state.internal.InternalFoldingState<K,N,T,ACC>

FoldingState implementation that stores state in RocksDB.

Field Summary

Fields inherited from class org.apache.flink.contrib.streaming.state.AbstractRocksDBState

backend, columnFamily, defaultValue, keySerializationDataOutputView, keySerializationStream, writeOptions

Constructor Summary

Constructors

Constructor and Description
RocksDBFoldingState(org.rocksdb.ColumnFamilyHandle columnFamily, org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer, org.apache.flink.api.common.typeutils.TypeSerializer<ACC> valueSerializer, ACC defaultValue, org.apache.flink.api.common.functions.FoldFunction<T,ACC> foldFunction, RocksDBKeyedStateBackend<K> backend) Deprecated. Creates a new RocksDBFoldingState.

Method Summary

Modifier and Type	Method and Description
void	add(T value) Deprecated.
ACC	get() Deprecated.
org.apache.flink.api.common.typeutils.TypeSerializer<K>	getKeySerializer() Deprecated.
org.apache.flink.api.common.typeutils.TypeSerializer<N>	getNamespaceSerializer() Deprecated.
org.apache.flink.api.common.typeutils.TypeSerializer<ACC>	getValueSerializer() Deprecated.

Methods inherited from class org.apache.flink.contrib.streaming.state.AbstractRocksDBState

clear, getDefaultValue, getSerializedValue, setCurrentNamespace, writeCurrentKeyWithGroupAndNamespace, writeKeyWithGroupAndNamespace, writeKeyWithGroupAndNamespace

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.runtime.state.internal.InternalKvState

getSerializedValue, setCurrentNamespace

Methods inherited from interface org.apache.flink.api.common.state.State

clear

Constructor Detail

RocksDBFoldingState

public RocksDBFoldingState(org.rocksdb.ColumnFamilyHandle columnFamily,
                           org.apache.flink.api.common.typeutils.TypeSerializer<N> namespaceSerializer,
                           org.apache.flink.api.common.typeutils.TypeSerializer<ACC> valueSerializer,
                           ACC defaultValue,
                           org.apache.flink.api.common.functions.FoldFunction<T,ACC> foldFunction,
                           RocksDBKeyedStateBackend<K> backend)

Deprecated.

Creates a new RocksDBFoldingState.

Parameters:

columnFamily - The RocksDB column family that this state is associated to.

namespaceSerializer - The serializer for the namespace.

valueSerializer - The serializer for the state.

defaultValue - The default value for the state.

foldFunction - The fold function used for folding state.

backend - The backend for which this state is bind to.

Method Detail

getKeySerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<K> getKeySerializer()

Deprecated.

Specified by:

getKeySerializer in interface org.apache.flink.runtime.state.internal.InternalKvState<K,N,ACC>

getNamespaceSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<N> getNamespaceSerializer()

Deprecated.

Specified by:

getNamespaceSerializer in interface org.apache.flink.runtime.state.internal.InternalKvState<K,N,ACC>

getValueSerializer

public org.apache.flink.api.common.typeutils.TypeSerializer<ACC> getValueSerializer()

Deprecated.

Specified by:

getValueSerializer in interface org.apache.flink.runtime.state.internal.InternalKvState<K,N,ACC>

get

public ACC get()

Deprecated.

Specified by:

get in interface org.apache.flink.api.common.state.AppendingState<T,ACC>

add

public void add(T value)
         throws IOException

Deprecated.

Specified by:

add in interface org.apache.flink.api.common.state.AppendingState<T,ACC>

Throws:

IOException