程序包 org.apache.flink.iteration.compile

类 DraftExecutionEnvironment

java.lang.Object

org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

org.apache.flink.iteration.compile.DraftExecutionEnvironment

public class DraftExecutionEnvironment
extends org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

A specialized stream execution environment that allows users to first construct a subgraph and later copy the transformations into the actual environment. During the copying it could apply some kinds of OperatorWrapper to change the operators in each transformation.

嵌套类概要

嵌套类

修饰符和类型	类	说明
static class	DraftExecutionEnvironment.EmptySource<T>	A special source that emits no data.

字段概要

从类继承的字段 org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

cacheFile, checkpointCfg, config, configuration, DEFAULT_JOB_NAME, isChainingEnabled, transformations

构造器概要

构造器

构造器	说明
DraftExecutionEnvironment(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment actualEnv, OperatorWrapper<?,?> initialWrapper)

方法概要

修饰符和类型	方法	说明
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	addDraftSource(org.apache.flink.streaming.api.datastream.DataStream<?> actualStream, org.apache.flink.api.common.typeinfo.TypeInformation<T> draftOutputType)
void	addOperator(org.apache.flink.api.dag.Transformation<?> transformation)
void	addOperatorIfNotExists(org.apache.flink.api.dag.Transformation<?> transformation)
void	copyToActualEnvironment()
org.apache.flink.api.common.JobExecutionResult	execute(org.apache.flink.streaming.api.graph.StreamGraph streamGraph)
<T> org.apache.flink.streaming.api.datastream.DataStream<T>	getActualStream(int draftTransformationId)
OperatorWrapper<?,?>	setCurrentWrapper(OperatorWrapper<?,?> newWrapper)

从类继承的方法 org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

addDefaultKryoSerializer, addDefaultKryoSerializer, addSource, addSource, addSource, addSource, areExplicitEnvironmentsAllowed, clean, clearJobListeners, configure, configure, createInput, createInput, createLocalEnvironment, createLocalEnvironment, createLocalEnvironment, createLocalEnvironment, createLocalEnvironmentWithWebUI, createRemoteEnvironment, createRemoteEnvironment, createRemoteEnvironment, disableOperatorChaining, enableChangelogStateBackend, enableCheckpointing, enableCheckpointing, enableCheckpointing, enableCheckpointing, execute, execute, executeAsync, executeAsync, executeAsync, fromCollection, fromCollection, fromCollection, fromCollection, fromElements, fromElements, fromParallelCollection, fromParallelCollection, fromSequence, fromSource, fromSource, generateSequence, generateStreamGraph, getBufferTimeout, getCachedFiles, getCheckpointConfig, getCheckpointingMode, getCheckpointInterval, getConfig, getConfiguration, getDefaultLocalParallelism, getDefaultSavepointDirectory, getExecutionEnvironment, getExecutionEnvironment, getExecutionPlan, getJobListeners, getMaxParallelism, getNumberOfExecutionRetries, getParallelism, getRestartStrategy, getStateBackend, getStreamGraph, getStreamGraph, getStreamTimeCharacteristic, getTransformations, getUserClassloader, initializeContextEnvironment, isChainingEnabled, isChangelogStateBackendEnabled, isForceCheckpointing, isForceUnalignedCheckpoints, isUnalignedCheckpointsEnabled, readFile, readFile, readFile, readFile, readFileStream, readTextFile, readTextFile, registerCachedFile, registerCachedFile, registerJobListener, registerSlotSharingGroup, registerType, registerTypeWithKryoSerializer, registerTypeWithKryoSerializer, resetContextEnvironment, setBufferTimeout, setDefaultLocalParallelism, setDefaultSavepointDirectory, setDefaultSavepointDirectory, setDefaultSavepointDirectory, setMaxParallelism, setNumberOfExecutionRetries, setParallelism, setRestartStrategy, setRuntimeMode, setStateBackend, setStreamTimeCharacteristic, socketTextStream, socketTextStream, socketTextStream, socketTextStream, socketTextStream

从类继承的方法 java.lang.Object

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

构造器详细资料

DraftExecutionEnvironment

public DraftExecutionEnvironment(org.apache.flink.streaming.api.environment.StreamExecutionEnvironment actualEnv,
                                 OperatorWrapper<?,?> initialWrapper)

方法详细资料

setCurrentWrapper

public OperatorWrapper<?,?> setCurrentWrapper(OperatorWrapper<?,?> newWrapper)

addOperator

public void addOperator(org.apache.flink.api.dag.Transformation<?> transformation)

覆盖:

addOperator 在类中 org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

addOperatorIfNotExists

public void addOperatorIfNotExists(org.apache.flink.api.dag.Transformation<?> transformation)

addDraftSource

public <T> org.apache.flink.streaming.api.datastream.DataStream<T> addDraftSource(org.apache.flink.streaming.api.datastream.DataStream<?> actualStream,
                                                                                  org.apache.flink.api.common.typeinfo.TypeInformation<T> draftOutputType)

copyToActualEnvironment

public void copyToActualEnvironment()

getActualStream

public <T> org.apache.flink.streaming.api.datastream.DataStream<T> getActualStream(int draftTransformationId)

execute

public org.apache.flink.api.common.JobExecutionResult execute(org.apache.flink.streaming.api.graph.StreamGraph streamGraph)
                                                       throws Exception

覆盖:

execute 在类中 org.apache.flink.streaming.api.environment.StreamExecutionEnvironment

抛出:

Exception