org.apache.flink.streaming.api.functions.source

Class ContinuousFileReaderOperatorFactory<OUT,T extends TimestampedInputSplit>

java.lang.Object

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

org.apache.flink.streaming.api.functions.source.ContinuousFileReaderOperatorFactory<OUT,T>

All Implemented Interfaces:

Serializable, OneInputStreamOperatorFactory<T,OUT>, StreamOperatorFactory<OUT>, YieldingOperatorFactory<OUT>, ProcessingTimeServiceAware

public class ContinuousFileReaderOperatorFactory<OUT,T extends TimestampedInputSplit>
extends AbstractStreamOperatorFactory<OUT>
implements YieldingOperatorFactory<OUT>, OneInputStreamOperatorFactory<T,OUT>

ContinuousFileReaderOperator factory.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperatorFactory

chainingStrategy, processingTimeService

Constructor Summary

Constructors

Constructor and Description
ContinuousFileReaderOperatorFactory(org.apache.flink.api.common.io.InputFormat<OUT,? super T> inputFormat)
ContinuousFileReaderOperatorFactory(org.apache.flink.api.common.io.InputFormat<OUT,? super T> inputFormat, org.apache.flink.api.common.typeinfo.TypeInformation<OUT> type, org.apache.flink.api.common.ExecutionConfig executionConfig)

Method Summary

Modifier and Type	Method and Description
<O extends StreamOperator<OUT>> O	createStreamOperator(StreamOperatorParameters<OUT> parameters) Create the operator.
Class<? extends StreamOperator>	getStreamOperatorClass(ClassLoader classLoader) Returns the runtime class of the stream operator.
boolean	isOutputTypeConfigurable() If the stream operator need access to the output type information at StreamGraph generation.
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.

Methods inherited from class org.apache.flink.streaming.api.operators.AbstractStreamOperatorFactory

getChainingStrategy, getMailboxExecutor, setChainingStrategy, setMailboxExecutor, setProcessingTimeService

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.streaming.api.operators.YieldingOperatorFactory

setMailboxExecutor

Methods inherited from interface org.apache.flink.streaming.api.operators.StreamOperatorFactory

getChainingStrategy, getOperatorAttributes, isInputTypeConfigurable, isLegacySource, isStreamSource, setChainingStrategy, setInputType

Constructor Detail

ContinuousFileReaderOperatorFactory

public ContinuousFileReaderOperatorFactory(org.apache.flink.api.common.io.InputFormat<OUT,? super T> inputFormat)

ContinuousFileReaderOperatorFactory

public ContinuousFileReaderOperatorFactory(org.apache.flink.api.common.io.InputFormat<OUT,? super T> inputFormat,
                                           org.apache.flink.api.common.typeinfo.TypeInformation<OUT> type,
                                           org.apache.flink.api.common.ExecutionConfig executionConfig)

Method Detail

createStreamOperator

public <O extends StreamOperator<OUT>> O createStreamOperator(StreamOperatorParameters<OUT> parameters)

Description copied from interface: StreamOperatorFactory

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

Specified by:

createStreamOperator in interface StreamOperatorFactory<OUT>

setOutputType

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

Description copied from interface: StreamOperatorFactory

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.

Specified by:

setOutputType in interface StreamOperatorFactory<OUT>

Parameters:

type - Output type information of the StreamTask

executionConfig - Execution configuration

getStreamOperatorClass

public Class<? extends StreamOperator> getStreamOperatorClass(ClassLoader classLoader)

Description copied from interface: StreamOperatorFactory

Returns the runtime class of the stream operator.

Specified by:

getStreamOperatorClass in interface StreamOperatorFactory<OUT>

isOutputTypeConfigurable

public boolean isOutputTypeConfigurable()

Description copied from interface: StreamOperatorFactory

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.

Specified by:

isOutputTypeConfigurable in interface StreamOperatorFactory<OUT>