org.apache.flink.streaming.api.operators

接口 StreamOperatorFactory<OUT>

类型参数:

OUT - The output type of the operator

所有超级接口:

Serializable

所有已知子接口:

InputFormatOperatorFactory<OUT>, OneInputStreamOperatorFactory<IN,OUT>, OutputFormatOperatorFactory<IN>, UdfStreamOperatorFactory<OUT>, YieldingOperatorFactory<OUT>

所有已知实现类:

AsyncWaitOperatorFactory, SimpleInputFormatOperatorFactory, SimpleOperatorFactory, SimpleOutputFormatOperatorFactory, SimpleUdfStreamOperatorFactory

@Internal
public interface StreamOperatorFactory<OUT>
extends Serializable

A factory to create StreamOperator.

方法概要

限定符和类型	方法和说明
<T extends StreamOperator<OUT>> T	createStreamOperator(StreamTask<?,?> containingTask, StreamConfig config, Output<StreamRecord<OUT>> output) Create the operator.
ChainingStrategy	getChainingStrategy() Get the chaining strategy of operator factory.
Class<? extends StreamOperator>	getStreamOperatorClass(ClassLoader classLoader) Returns the runtime class of the stream operator.
default boolean	isInputTypeConfigurable() If the stream operator need to be configured with the data type they will operate on.
default boolean	isOutputTypeConfigurable() If the stream operator need access to the output type information at StreamGraph generation.
default boolean	isStreamSource() Is this factory for StreamSource.
void	setChainingStrategy(ChainingStrategy strategy) Set the chaining strategy for operator factory.
default void	setInputType(org.apache.flink.api.common.typeinfo.TypeInformation<?> type, org.apache.flink.api.common.ExecutionConfig executionConfig) Is called by the StreamGraph.addOperator(java.lang.Integer, java.lang.String, java.lang.String, org.apache.flink.streaming.api.operators.StreamOperatorFactory<OUT>, org.apache.flink.api.common.typeinfo.TypeInformation<IN>, org.apache.flink.api.common.typeinfo.TypeInformation<OUT>, java.lang.String) method when the StreamGraph is generated.
default void	setOutputType(org.apache.flink.api.common.typeinfo.TypeInformation<OUT> type, org.apache.flink.api.common.ExecutionConfig executionConfig) Is called by the StreamGraph.addOperator(java.lang.Integer, java.lang.String, java.lang.String, org.apache.flink.streaming.api.operators.StreamOperatorFactory<OUT>, org.apache.flink.api.common.typeinfo.TypeInformation<IN>, org.apache.flink.api.common.typeinfo.TypeInformation<OUT>, java.lang.String) method when the StreamGraph is generated.

方法详细资料

createStreamOperator

<T extends StreamOperator<OUT>> T createStreamOperator(StreamTask<?,?> containingTask,
                                                       StreamConfig config,
                                                       Output<StreamRecord<OUT>> output)

Create the operator. Sets access to the context and the output.

setChainingStrategy

void setChainingStrategy(ChainingStrategy strategy)

Set the chaining strategy for operator factory.

getChainingStrategy

ChainingStrategy getChainingStrategy()

Get the chaining strategy of operator factory.

isStreamSource

default boolean isStreamSource()

Is this factory for StreamSource.

isOutputTypeConfigurable

default boolean isOutputTypeConfigurable()

If the stream operator need access to the output type information at StreamGraph generation. This can be useful for cases where the output type is specified by the returns method and, thus, after the stream operator has been created.

setOutputType

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

Is called by the StreamGraph.addOperator(java.lang.Integer, java.lang.String, java.lang.String, org.apache.flink.streaming.api.operators.StreamOperatorFactory<OUT>, org.apache.flink.api.common.typeinfo.TypeInformation<IN>, org.apache.flink.api.common.typeinfo.TypeInformation<OUT>, java.lang.String) method when the StreamGraph is generated. The method is called with the output TypeInformation which is also used for the StreamTask output serializer.

参数:

type - Output type information of the StreamTask

executionConfig - Execution configuration

isInputTypeConfigurable

default boolean isInputTypeConfigurable()

If the stream operator need to be configured with the data type they will operate on.

setInputType

default void setInputType(org.apache.flink.api.common.typeinfo.TypeInformation<?> type,
                          org.apache.flink.api.common.ExecutionConfig executionConfig)

Is called by the StreamGraph.addOperator(java.lang.Integer, java.lang.String, java.lang.String, org.apache.flink.streaming.api.operators.StreamOperatorFactory<OUT>, org.apache.flink.api.common.typeinfo.TypeInformation<IN>, org.apache.flink.api.common.typeinfo.TypeInformation<OUT>, java.lang.String) method when the StreamGraph is generated.

参数:

type - The data type of the input.

executionConfig - The execution config for this parallel execution.

getStreamOperatorClass

Class<? extends StreamOperator> getStreamOperatorClass(ClassLoader classLoader)

Returns the runtime class of the stream operator.