Package org.apache.flink.streaming.runtime.translators

Class SourceTransformationTranslator<OUT,SplitT extends org.apache.flink.api.connector.source.SourceSplit,EnumChkT>

java.lang.Object

org.apache.flink.streaming.api.graph.SimpleTransformationTranslator<OUT,SourceTransformation<OUT,SplitT,EnumChkT>>

org.apache.flink.streaming.runtime.translators.SourceTransformationTranslator<OUT,SplitT,EnumChkT>

Type Parameters:

OUT - The type of the elements that this source produces.

All Implemented Interfaces:

TransformationTranslator<OUT,SourceTransformation<OUT,SplitT,EnumChkT>>

@Internal
public class SourceTransformationTranslator<OUT,SplitT extends org.apache.flink.api.connector.source.SourceSplit,EnumChkT>
extends SimpleTransformationTranslator<OUT,SourceTransformation<OUT,SplitT,EnumChkT>>

A TransformationTranslator for the SourceTransformation.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.graph.TransformationTranslator

TransformationTranslator.Context

Constructor Summary

Constructors

Constructor	Description
SourceTransformationTranslator()

Method Summary

Modifier and Type	Method	Description
protected Collection<Integer>	translateForBatchInternal(SourceTransformation<OUT,SplitT,EnumChkT> transformation, TransformationTranslator.Context context)	Translates a given Transformation to its runtime implementation for BATCH-style execution.
protected Collection<Integer>	translateForStreamingInternal(SourceTransformation<OUT,SplitT,EnumChkT> transformation, TransformationTranslator.Context context)	Translates a given Transformation to its runtime implementation for STREAMING-style execution.

Methods inherited from class org.apache.flink.streaming.api.graph.SimpleTransformationTranslator

translateForBatch, translateForStreaming

Methods inherited from class java.lang.Object

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

Constructor Details

SourceTransformationTranslator

public SourceTransformationTranslator()

Method Details

translateForBatchInternal

protected Collection<Integer> translateForBatchInternal(SourceTransformation<OUT,SplitT,EnumChkT> transformation,
 TransformationTranslator.Context context)

Description copied from class: SimpleTransformationTranslator

Translates a given Transformation to its runtime implementation for BATCH-style execution.

Specified by:

translateForBatchInternal in class SimpleTransformationTranslator<OUT,SourceTransformation<OUT,SplitT extends org.apache.flink.api.connector.source.SourceSplit,EnumChkT>>

Parameters:

transformation - The transformation to be translated.

context - The translation context.

Returns:

The ids of the "last" StreamNodes in the transformation graph corresponding to this transformation. These will be the nodes that a potential following transformation will need to connect to.

translateForStreamingInternal

protected Collection<Integer> translateForStreamingInternal(SourceTransformation<OUT,SplitT,EnumChkT> transformation,
 TransformationTranslator.Context context)

Description copied from class: SimpleTransformationTranslator

Translates a given Transformation to its runtime implementation for STREAMING-style execution.

Specified by:

translateForStreamingInternal in class SimpleTransformationTranslator<OUT,SourceTransformation<OUT,SplitT extends org.apache.flink.api.connector.source.SourceSplit,EnumChkT>>

Parameters:

transformation - The transformation to be translated.

context - The translation context.

Returns:

The ids of the "last" StreamNodes in the transformation graph corresponding to this transformation. These will be the nodes that a potential following transformation will need to connect to.