org.apache.flink.streaming.api.environment

类 LegacyLocalStreamEnvironment

java.lang.Object

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

org.apache.flink.streaming.api.environment.LocalStreamEnvironment

org.apache.flink.streaming.api.environment.LegacyLocalStreamEnvironment

@Public
public class LegacyLocalStreamEnvironment
extends LocalStreamEnvironment

The LocalStreamEnvironment is a StreamExecutionEnvironment that runs the program locally, multi-threaded, in the JVM where the environment is instantiated. It spawns an embedded Flink cluster in the background and executes the program on that cluster.

When this environment is instantiated, it uses a default parallelism of 1. The default parallelism can be set via StreamExecutionEnvironment.setParallelism(int).

Local environments can also be instantiated through StreamExecutionEnvironment.createLocalEnvironment() and StreamExecutionEnvironment.createLocalEnvironment(int). The former version will pick a default parallelism equal to the number of hardware contexts in the local machine.

字段概要

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

cacheFile, DEFAULT_JOB_NAME, isChainingEnabled, transformations

构造器概要

构造器

构造器和说明
LegacyLocalStreamEnvironment()
LegacyLocalStreamEnvironment(org.apache.flink.configuration.Configuration config) Creates a new local stream environment that configures its local executor with the given configuration.

方法概要

限定符和类型	方法和说明
org.apache.flink.api.common.JobExecutionResult	execute(String jobName) Executes the JobGraph of the on a mini cluster of CLusterUtil with a user specified name.

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

getConfiguration

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

addDefaultKryoSerializer, addDefaultKryoSerializer, addOperator, addSource, addSource, addSource, addSource, clean, createInput, createInput, createLocalEnvironment, createLocalEnvironment, createLocalEnvironment, createLocalEnvironmentWithWebUI, createRemoteEnvironment, createRemoteEnvironment, createRemoteEnvironment, disableOperatorChaining, enableCheckpointing, enableCheckpointing, enableCheckpointing, enableCheckpointing, execute, fromCollection, fromCollection, fromCollection, fromCollection, fromElements, fromElements, fromParallelCollection, fromParallelCollection, generateSequence, getBufferTimeout, getCachedFiles, getCheckpointConfig, getCheckpointingMode, getCheckpointInterval, getConfig, getDefaultLocalParallelism, getExecutionEnvironment, getExecutionPlan, getMaxParallelism, getNumberOfExecutionRetries, getParallelism, getRestartStrategy, getStateBackend, getStreamGraph, getStreamTimeCharacteristic, initializeContextEnvironment, isChainingEnabled, isForceCheckpointing, readFile, readFile, readFile, readFile, readFileStream, readTextFile, readTextFile, registerCachedFile, registerCachedFile, registerType, registerTypeWithKryoSerializer, registerTypeWithKryoSerializer, resetContextEnvironment, setBufferTimeout, setDefaultLocalParallelism, setMaxParallelism, setNumberOfExecutionRetries, setParallelism, setRestartStrategy, setStateBackend, 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

LegacyLocalStreamEnvironment

public LegacyLocalStreamEnvironment()

LegacyLocalStreamEnvironment

public LegacyLocalStreamEnvironment(org.apache.flink.configuration.Configuration config)

Creates a new local stream environment that configures its local executor with the given configuration.

参数:

config - The configuration used to configure the local executor.

方法详细资料

execute

public org.apache.flink.api.common.JobExecutionResult execute(String jobName)
                                                       throws Exception

Executes the JobGraph of the on a mini cluster of CLusterUtil with a user specified name.

覆盖:

execute 在类中 LocalStreamEnvironment

参数:

jobName - name of the job

返回:

The result of the job execution, containing elapsed time and accumulators.

抛出:

Exception - which occurs during job execution.