接口的使用
org.apache.flink.streaming.api.operators.KeyContext

使用KeyContext的程序包

程序包	说明
org.apache.flink.streaming.api.functions.query
org.apache.flink.streaming.api.functions.source
org.apache.flink.streaming.api.operators
org.apache.flink.streaming.api.operators.async
org.apache.flink.streaming.api.operators.co
org.apache.flink.streaming.api.operators.collect
org.apache.flink.streaming.runtime.operators	This package contains the operators that perform the stream transformations.
org.apache.flink.streaming.runtime.operators.windowing	This package contains the operators that implement the various window operations on data streams.

org.apache.flink.streaming.api.functions.query中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.api.functions.query中的类

限定符和类型	类和说明
class	QueryableAppendingStateOperator<IN> Internal operator handling queryable AppendingState instances.
class	QueryableValueStateOperator<IN> Internal operator handling queryable ValueState instances.

org.apache.flink.streaming.api.functions.source中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.api.functions.source中的类

限定符和类型	类和说明
class	ContinuousFileReaderOperator<OUT,T extends TimestampedInputSplit> The operator that reads the splits received from the preceding ContinuousFileMonitoringFunction.

org.apache.flink.streaming.api.operators中KeyContext的使用

org.apache.flink.streaming.api.operators中KeyContext的子接口

限定符和类型	接口和说明
interface	MultipleInputStreamOperator<OUT> Interface for stream operators with multiple Inputs.
interface	OneInputStreamOperator<IN,OUT> Interface for stream operators with one input.
interface	StreamOperator<OUT> Basic interface for stream operators.
interface	TwoInputStreamOperator<IN1,IN2,OUT> Interface for stream operators with two inputs.

实现KeyContext的org.apache.flink.streaming.api.operators中的类

限定符和类型	类和说明
class	AbstractStreamOperator<OUT> Base class for all stream operators.
class	AbstractStreamOperatorV2<OUT> New base class for all stream operators, intended to eventually replace AbstractStreamOperator.
class	AbstractUdfStreamOperator<OUT,F extends org.apache.flink.api.common.functions.Function> This is used as the base class for operators that have a user-defined function.
class	KeyedProcessOperator<K,IN,OUT> A StreamOperator for executing KeyedProcessFunctions.
class	LegacyKeyedProcessOperator<K,IN,OUT> 已过时。 Replaced by KeyedProcessOperator which takes KeyedProcessFunction
class	ProcessOperator<IN,OUT> A StreamOperator for executing ProcessFunctions.
class	SourceOperator<OUT,SplitT extends org.apache.flink.api.connector.source.SourceSplit> Base source operator only used for integrating the source reader which is proposed by FLIP-27.
class	StreamFilter<IN> A StreamOperator for executing FilterFunctions.
class	StreamFlatMap<IN,OUT> A StreamOperator for executing FlatMapFunctions.
class	StreamGroupedFold<IN,OUT,KEY> 已过时。 will be removed in a future version
class	StreamGroupedReduce<IN> A StreamOperator for executing a ReduceFunction on a KeyedStream.
class	StreamMap<IN,OUT> A StreamOperator for executing MapFunctions.
class	StreamProject<IN,OUT extends org.apache.flink.api.java.tuple.Tuple> A StreamOperator for executing projections on streams.
class	StreamSink<IN> A StreamOperator for executing SinkFunctions.
class	StreamSource<OUT,SRC extends SourceFunction<OUT>> StreamOperator for streaming sources.

参数类型为KeyContext的org.apache.flink.streaming.api.operators中的方法

限定符和类型	方法和说明
protected <K> InternalTimeServiceManager<K>	StreamTaskStateInitializerImpl.internalTimeServiceManager(org.apache.flink.runtime.state.AbstractKeyedStateBackend<K> keyedStatedBackend, KeyContext keyContext, ProcessingTimeService processingTimeService, Iterable<org.apache.flink.runtime.state.KeyGroupStatePartitionStreamProvider> rawKeyedStates)
StreamOperatorStateContext	StreamTaskStateInitializer.streamOperatorStateContext(org.apache.flink.runtime.jobgraph.OperatorID operatorID, String operatorClassName, ProcessingTimeService processingTimeService, KeyContext keyContext, org.apache.flink.api.common.typeutils.TypeSerializer<?> keySerializer, org.apache.flink.core.fs.CloseableRegistry streamTaskCloseableRegistry, org.apache.flink.metrics.MetricGroup metricGroup, boolean isUsingCustomRawKeyedState) Returns the StreamOperatorStateContext for an AbstractStreamOperator that runs in the stream task that owns this manager.
StreamOperatorStateContext	StreamTaskStateInitializerImpl.streamOperatorStateContext(org.apache.flink.runtime.jobgraph.OperatorID operatorID, String operatorClassName, ProcessingTimeService processingTimeService, KeyContext keyContext, org.apache.flink.api.common.typeutils.TypeSerializer<?> keySerializer, org.apache.flink.core.fs.CloseableRegistry streamTaskCloseableRegistry, org.apache.flink.metrics.MetricGroup metricGroup, boolean isUsingCustomRawKeyedState)

org.apache.flink.streaming.api.operators.async中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.api.operators.async中的类

限定符和类型	类和说明
class	AsyncWaitOperator<IN,OUT> The AsyncWaitOperator allows to asynchronously process incoming stream records.

org.apache.flink.streaming.api.operators.co中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.api.operators.co中的类

限定符和类型	类和说明
class	CoBroadcastWithKeyedOperator<KS,IN1,IN2,OUT> A TwoInputStreamOperator for executing KeyedBroadcastProcessFunctions.
class	CoBroadcastWithNonKeyedOperator<IN1,IN2,OUT> A TwoInputStreamOperator for executing BroadcastProcessFunctions.
class	CoProcessOperator<IN1,IN2,OUT> A StreamOperator for executing CoProcessFunctions.
class	CoStreamFlatMap<IN1,IN2,OUT> StreamOperator for processing CoFlatMapFunctions.
class	CoStreamMap<IN1,IN2,OUT> StreamOperator for processing CoMapFunctions.
class	IntervalJoinOperator<K,T1,T2,OUT> An operator to execute time-bounded stream inner joins.
class	KeyedCoProcessOperator<K,IN1,IN2,OUT> A StreamOperator for executing keyed KeyedCoProcessFunction.
class	LegacyKeyedCoProcessOperator<K,IN1,IN2,OUT> 已过时。 Replaced by KeyedCoProcessOperator which takes KeyedCoProcessFunction

org.apache.flink.streaming.api.operators.collect中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.api.operators.collect中的类

限定符和类型	类和说明
class	CollectSinkOperator<IN> A StreamSink that collects query results and sends them back to the client.

org.apache.flink.streaming.runtime.operators中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.runtime.operators中的类

限定符和类型	类和说明
class	GenericWriteAheadSink<IN> Generic Sink that emits its input elements into an arbitrary backend.
class	TimestampsAndWatermarksOperator<T> A stream operator that may do one or both of the following: extract timestamps from events and generate watermarks.

org.apache.flink.streaming.runtime.operators.windowing中KeyContext的使用

实现KeyContext的org.apache.flink.streaming.runtime.operators.windowing中的类

限定符和类型	类和说明
class	EvictingWindowOperator<K,IN,OUT,W extends Window> A WindowOperator that also allows an Evictor to be used.
class	WindowOperator<K,IN,ACC,OUT,W extends Window> An operator that implements the logic for windowing based on a WindowAssigner and Trigger.