Package org.apache.flink.streaming.api.graph

Class SimpleTransformationTranslator<OUT,T extends org.apache.flink.api.dag.Transformation<OUT>>

java.lang.Object

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

Type Parameters:

OUT - The type of the output elements of the transformation being translated.

T - The type of transformation being translated.

All Implemented Interfaces:

TransformationTranslator<OUT,T>

Direct Known Subclasses:

AbstractTwoInputTransformationTranslator, CacheTransformationTranslator, LegacySinkTransformationTranslator, LegacySourceTransformationTranslator, MultiInputTransformationTranslator, OneInputTransformationTranslator, PartitionTransformationTranslator, ReduceTransformationTranslator, SideOutputTransformationTranslator, SourceTransformationTranslator, TimestampsAndWatermarksTransformationTranslator, UnionTransformationTranslator

@Internal
public abstract class SimpleTransformationTranslator<OUT,T extends org.apache.flink.api.dag.Transformation<OUT>>
extends Object
implements TransformationTranslator<OUT,T>

A base class for all TransformationTranslators who translate Transformations that have a single operator in their runtime implementation. These include most of the currently supported operations.

Nested Class Summary

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

TransformationTranslator.Context

Constructor Summary

Constructors

Constructor	Description
SimpleTransformationTranslator()

Method Summary

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

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleTransformationTranslator

public SimpleTransformationTranslator()

Method Detail

translateForBatch

public final Collection<Integer> translateForBatch(T transformation,
                                                   TransformationTranslator.Context context)

Description copied from interface: TransformationTranslator

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

Specified by:

translateForBatch in interface TransformationTranslator<OUT,T extends org.apache.flink.api.dag.Transformation<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.

translateForStreaming

public final Collection<Integer> translateForStreaming(T transformation,
                                                       TransformationTranslator.Context context)

Description copied from interface: TransformationTranslator

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

Specified by:

translateForStreaming in interface TransformationTranslator<OUT,T extends org.apache.flink.api.dag.Transformation<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.

translateForBatchInternal

protected abstract Collection<Integer> translateForBatchInternal(T transformation,
                                                                 TransformationTranslator.Context context)

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

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 abstract Collection<Integer> translateForStreamingInternal(T transformation,
                                                                     TransformationTranslator.Context context)

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

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.