org.apache.flink.streaming.runtime.translators

类 CacheTransformationTranslator<OUT,T extends CacheTransformation<OUT>>

java.lang.Object

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

org.apache.flink.streaming.runtime.translators.CacheTransformationTranslator<OUT,T>

所有已实现的接口:

TransformationTranslator<OUT,T>

@Internal
public class CacheTransformationTranslator<OUT,T extends CacheTransformation<OUT>>
extends SimpleTransformationTranslator<OUT,T>

Translator for CacheTransformationTranslator.

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	CacheTransformationTranslator.IdentityStreamOperator<T> The CacheTransformationTranslator.IdentityStreamOperator acts as a dummy source to consume cached intermediate dataset.
static class	CacheTransformationTranslator.NoOpStreamOperator<T> The CacheTransformationTranslator.NoOpStreamOperator acts as a dummy sink so that the upstream can produce the intermediate dataset to be cached.

从接口继承的嵌套类/接口 org.apache.flink.streaming.api.graph.TransformationTranslator

TransformationTranslator.Context

字段概要

字段

限定符和类型	字段和说明
static String	CACHE_CONSUMER_OPERATOR_NAME
static String	CACHE_PRODUCER_OPERATOR_NAME

构造器概要

构造器

构造器和说明
CacheTransformationTranslator()

方法概要

限定符和类型	方法和说明
protected Collection<Integer>	translateForBatchInternal(T transformation, TransformationTranslator.Context context) Translates a given Transformation to its runtime implementation for BATCH-style execution.
protected Collection<Integer>	translateForStreamingInternal(T transformation, TransformationTranslator.Context context) Translates a given Transformation to its runtime implementation for STREAMING-style execution.

从类继承的方法 org.apache.flink.streaming.api.graph.SimpleTransformationTranslator

translateForBatch, translateForStreaming

从类继承的方法 java.lang.Object

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

字段详细资料

CACHE_CONSUMER_OPERATOR_NAME

public static final String CACHE_CONSUMER_OPERATOR_NAME

另请参阅:

常量字段值

CACHE_PRODUCER_OPERATOR_NAME

public static final String CACHE_PRODUCER_OPERATOR_NAME

另请参阅:

常量字段值

构造器详细资料

CacheTransformationTranslator

public CacheTransformationTranslator()

方法详细资料

translateForBatchInternal

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

从类复制的说明: SimpleTransformationTranslator

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

指定者:

translateForBatchInternal 在类中 SimpleTransformationTranslator<OUT,T extends CacheTransformation<OUT>>

参数:

transformation - The transformation to be translated.

context - The translation context.

返回:

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(T transformation,
                                                            TransformationTranslator.Context context)

从类复制的说明: SimpleTransformationTranslator

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

指定者:

translateForStreamingInternal 在类中 SimpleTransformationTranslator<OUT,T extends CacheTransformation<OUT>>

参数:

transformation - The transformation to be translated.

context - The translation context.

返回:

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.