Package org.apache.wayang.basic.operators

Class TextFileSink<T>

java.lang.Object

org.apache.wayang.core.plan.wayangplan.OperatorBase

org.apache.wayang.core.plan.wayangplan.UnarySink<T>

org.apache.wayang.basic.operators.TextFileSink<T>

All Implemented Interfaces:

Serializable, ActualOperator, ElementaryOperator, Operator

Direct Known Subclasses:

FlinkTextFileSink, JavaTextFileSink, SparkTextFileSink

public class TextFileSink<T>
extends UnarySink<T>

This UnarySink writes all incoming data quanta to a text file.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

OperatorBase.GsonSerializer

Field Summary

Fields

Modifier and Type	Field	Description
protected final TransformationDescriptor<T,String>	formattingDescriptor
protected final String	textFileUrl

Fields inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

inputSlots, outputSlots, STANDARD_OPERATOR_ARGS

Fields inherited from interface org.apache.wayang.core.plan.wayangplan.Operator

FIRST_EPOCH

Constructor Summary

Constructors

Constructor	Description
TextFileSink(String textFileUrl, Class<T> typeClass)	Creates a new instance with default formatting.
TextFileSink(String textFileUrl, FunctionDescriptor.SerializableFunction<T,String> formattingFunction, Class<T> typeClass)	Creates a new instance.
TextFileSink(String textFileUrl, TransformationDescriptor<T,String> formattingDescriptor)	Creates a new instance.
TextFileSink(TextFileSink<T> that)	Creates a copied instance.

Method Summary

Methods inherited from class org.apache.wayang.core.plan.wayangplan.UnarySink

getInput, getType

Methods inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

accept, addBroadcastInput, addTargetPlatform, at, collectMappedInputSlots, collectMappedOutputSlots, copy, createCopy, getAllInputs, getAllOutputs, getCardinalityEstimator, getContainer, getEpoch, getName, getOriginal, getSimpleClassName, getTargetPlatforms, isAuxiliary, isSupportingBroadcastInputs, propagateInputCardinality, propagateOutputCardinality, setAuxiliary, setCardinalityEstimator, setContainer, setEpoch, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.ActualOperator

accept

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.ElementaryOperator

createCardinalityEstimator, getCardinalityEstimator, isAuxiliary, setAuxiliary, setCardinalityEstimator

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.Operator

addBroadcastInput, addTargetPlatform, broadcastTo, broadcastTo, collectMappedInputSlots, collectMappedOutputSlots, connectTo, connectTo, getAllInputs, getAllOutputs, getCardinalityPusher, getContainer, getEffectiveOccupant, getEffectiveOccupant, getEpoch, getEstimationContextProperties, getForwards, getInnermostLoop, getInput, getInput, getLoopStack, getName, getNumBroadcastInputs, getNumInputs, getNumOutputs, getNumRegularInputs, getOuterInputSlot, getOutermostInputSlot, getOutermostOutputSlots, getOutput, getOutput, getParent, getTargetPlatforms, isAlternative, isConversion, isElementary, isExecutionOperator, isFeedbackInput, isFeedforwardOutput, isLoopHead, isLoopSubplan, isOwnerOf, isReading, isSink, isSource, isSubplan, isSupportingBroadcastInputs, isUnconnected, propagateInputCardinality, propagateOutputCardinality, propagateOutputCardinality, replaceWith, setContainer, setEpoch, setInput, setName, setOutput

Field Details

textFileUrl

protected final String textFileUrl

formattingDescriptor

protected final TransformationDescriptor<T,String> formattingDescriptor

Constructor Details

TextFileSink

public TextFileSink(String textFileUrl,
 Class<T> typeClass)

Creates a new instance with default formatting.

Parameters:

textFileUrl - URL to file that should be written

typeClass - Class of incoming data quanta

TextFileSink

public TextFileSink(String textFileUrl,
 FunctionDescriptor.SerializableFunction<T,String> formattingFunction,
 Class<T> typeClass)

Creates a new instance.

Parameters:

textFileUrl - URL to file that should be written

formattingFunction - formats incoming data quanta to a String representation

typeClass - Class of incoming data quanta

TextFileSink

public TextFileSink(String textFileUrl,
 TransformationDescriptor<T,String> formattingDescriptor)

Creates a new instance.

Parameters:

textFileUrl - URL to file that should be written

formattingDescriptor - formats incoming data quanta to a String representation

TextFileSink

public TextFileSink(TextFileSink<T> that)

Creates a copied instance.

Parameters:

that - should be copied