org.apache.flink.streaming.api.operators

类 StreamGroupedFold<IN,OUT,KEY>

java.lang.Object

org.apache.flink.streaming.api.operators.AbstractStreamOperator<OUT>

org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FoldFunction<IN,OUT>>

org.apache.flink.streaming.api.operators.StreamGroupedFold<IN,OUT,KEY>

所有已实现的接口:

Serializable, org.apache.flink.runtime.state.CheckpointListener, KeyContext, OneInputStreamOperator<IN,OUT>, OutputTypeConfigurable<OUT>, SetupableStreamOperator<OUT>, StreamOperator<OUT>, StreamOperatorStateHandler.CheckpointedStreamOperator, org.apache.flink.util.Disposable

已过时。

will be removed in a future version

@Internal
 @Deprecated
public class StreamGroupedFold<IN,OUT,KEY>
extends AbstractUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FoldFunction<IN,OUT>>
implements OneInputStreamOperator<IN,OUT>, OutputTypeConfigurable<OUT>

A StreamOperator for executing a FoldFunction on a KeyedStream.

另请参阅:

序列化表格

字段概要

从类继承的字段 org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

userFunction

从类继承的字段 org.apache.flink.streaming.api.operators.AbstractStreamOperator

chainingStrategy, config, latencyStats, LOG, metrics, output, processingTimeService

构造器概要

构造器

构造器和说明
StreamGroupedFold(org.apache.flink.api.common.functions.FoldFunction<IN,OUT> folder, OUT initialValue) 已过时。

方法概要

限定符和类型	方法和说明
void	open() 已过时。 This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.
void	processElement(StreamRecord<IN> element) 已过时。 Processes one element that arrived at this operator.
void	setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outTypeInfo, org.apache.flink.api.common.ExecutionConfig executionConfig) 已过时。 Is called by the org.apache.flink.streaming.api.graph.StreamGraph#addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated.

从类继承的方法 org.apache.flink.streaming.api.operators.AbstractUdfStreamOperator

close, dispose, getUserFunction, getUserFunctionParameters, initializeState, notifyCheckpointAborted, notifyCheckpointComplete, setup, snapshotState

从类继承的方法 org.apache.flink.streaming.api.operators.AbstractStreamOperator

getChainingStrategy, getContainingTask, getCurrentKey, getExecutionConfig, getInternalTimerService, getKeyedStateBackend, getKeyedStateStore, getMetricGroup, getOperatorConfig, getOperatorID, getOperatorName, getOperatorStateBackend, getOrCreateKeyedState, getPartitionedState, getPartitionedState, getProcessingTimeService, getRuntimeContext, getTimeServiceManager, getUserCodeClassloader, initializeState, isUsingCustomRawKeyedState, numEventTimeTimers, numProcessingTimeTimers, prepareSnapshotPreBarrier, processLatencyMarker, processLatencyMarker1, processLatencyMarker2, processWatermark, processWatermark1, processWatermark2, reportOrForwardLatencyMarker, setChainingStrategy, setCurrentKey, setKeyContextElement1, setKeyContextElement2, setProcessingTimeService, snapshotState

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.streaming.api.operators.OneInputStreamOperator

processLatencyMarker, processWatermark

从接口继承的方法 org.apache.flink.streaming.api.operators.StreamOperator

close, dispose, getMetricGroup, getOperatorID, initializeState, prepareSnapshotPreBarrier, setKeyContextElement1, setKeyContextElement2, snapshotState

从接口继承的方法 org.apache.flink.runtime.state.CheckpointListener

notifyCheckpointAborted, notifyCheckpointComplete

从接口继承的方法 org.apache.flink.streaming.api.operators.KeyContext

getCurrentKey, setCurrentKey

构造器详细资料

StreamGroupedFold

public StreamGroupedFold(org.apache.flink.api.common.functions.FoldFunction<IN,OUT> folder,
                         OUT initialValue)

已过时。

方法详细资料

open

public void open()
          throws Exception

已过时。

从类复制的说明: AbstractStreamOperator

This method is called immediately before any elements are processed, it should contain the operator's initialization logic, e.g. state initialization.

The default implementation does nothing.

指定者:

open 在接口中 StreamOperator<OUT>

覆盖:

open 在类中 AbstractUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FoldFunction<IN,OUT>>

抛出:

Exception - An exception in this method causes the operator to fail.

processElement

public void processElement(StreamRecord<IN> element)
                    throws Exception

已过时。

从接口复制的说明: OneInputStreamOperator

Processes one element that arrived at this operator. This method is guaranteed to not be called concurrently with other methods of the operator.

指定者:

processElement 在接口中 OneInputStreamOperator<IN,OUT>

抛出:

Exception

setOutputType

public void setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<OUT> outTypeInfo,
                          org.apache.flink.api.common.ExecutionConfig executionConfig)

已过时。

从接口复制的说明: OutputTypeConfigurable

Is called by the org.apache.flink.streaming.api.graph.StreamGraph#addOperator(Integer, String, StreamOperator, TypeInformation, TypeInformation, String) method when the StreamGraph is generated. The method is called with the output TypeInformation which is also used for the StreamTask output serializer.

指定者:

setOutputType 在接口中 OutputTypeConfigurable<OUT>

覆盖:

setOutputType 在类中 AbstractUdfStreamOperator<OUT,org.apache.flink.api.common.functions.FoldFunction<IN,OUT>>

参数:

outTypeInfo - Output type information of the StreamTask

executionConfig - Execution configuration