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

Class StubTransformationTranslator<OUT>

java.lang.Object

org.apache.flink.streaming.api.graph.SimpleTransformationTranslator<OUT,StubTransformation<OUT>>

org.apache.flink.streaming.runtime.translators.StubTransformationTranslator<OUT>

Type Parameters:

OUT - The type of the elements that result from the StubTransformation being translated.

All Implemented Interfaces:

TransformationTranslator<OUT,StubTransformation<OUT>>

@Internal
public class StubTransformationTranslator<OUT>
extends SimpleTransformationTranslator<OUT,StubTransformation<OUT>>

A TransformationTranslator for the StubTransformation.

The translator finds the upstream transformation based on the predicate provided in the StubTransformation and implicitly connects upstream to the downstream transformations of the StubTransformation.

Nested Class Summary

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

TransformationTranslator.Context

Constructor Summary

Constructors

Constructor	Description
StubTransformationTranslator()

Method Summary

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

StubTransformationTranslator

public StubTransformationTranslator()

Method Detail

translateForBatchInternal

protected Collection<Integer> translateForBatchInternal(StubTransformation<OUT> 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,StubTransformation<OUT>>

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(StubTransformation<OUT> 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,StubTransformation<OUT>>

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.