org.apache.flink.connector.nebula.source

Class NebulaSourceFunction

java.lang.Object

org.apache.flink.api.common.functions.AbstractRichFunction

org.apache.flink.streaming.api.functions.source.RichParallelSourceFunction<com.vesoft.nebula.client.storage.data.BaseTableRow>

org.apache.flink.connector.nebula.source.NebulaSourceFunction

All Implemented Interfaces:

Serializable, org.apache.flink.api.common.functions.Function, org.apache.flink.api.common.functions.RichFunction, org.apache.flink.streaming.api.functions.source.ParallelSourceFunction<com.vesoft.nebula.client.storage.data.BaseTableRow>, org.apache.flink.streaming.api.functions.source.SourceFunction<com.vesoft.nebula.client.storage.data.BaseTableRow>

public class NebulaSourceFunction
extends org.apache.flink.streaming.api.functions.source.RichParallelSourceFunction<com.vesoft.nebula.client.storage.data.BaseTableRow>

Implementation of RichParallelSourceFunction to get NebulaGraph vertex and edge.

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.flink.streaming.api.functions.source.SourceFunction

org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<T>

Constructor Summary

Constructors

Constructor and Description
NebulaSourceFunction(NebulaStorageConnectionProvider storageConnectionProvider)

Method Summary

Modifier and Type	Method and Description
void	cancel()
void	close() close nebula client
void	open(org.apache.flink.configuration.Configuration parameters) open nebula client
void	run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<com.vesoft.nebula.client.storage.data.BaseTableRow> sourceContext) execute scan nebula data
NebulaSourceFunction	setExecutionOptions(ExecutionOptions executionOptions)

Methods inherited from class org.apache.flink.api.common.functions.AbstractRichFunction

getIterationRuntimeContext, getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Constructor Detail

NebulaSourceFunction

public NebulaSourceFunction(NebulaStorageConnectionProvider storageConnectionProvider)

Method Detail

open

public void open(org.apache.flink.configuration.Configuration parameters)
          throws Exception

open nebula client

Specified by:

open in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

open in class org.apache.flink.api.common.functions.AbstractRichFunction

Throws:

Exception

close

public void close()
           throws Exception

close nebula client

Specified by:

close in interface org.apache.flink.api.common.functions.RichFunction

Overrides:

close in class org.apache.flink.api.common.functions.AbstractRichFunction

Throws:

Exception

run

public void run(org.apache.flink.streaming.api.functions.source.SourceFunction.SourceContext<com.vesoft.nebula.client.storage.data.BaseTableRow> sourceContext)
         throws Exception

execute scan nebula data

Throws:

Exception

cancel

public void cancel()

setExecutionOptions

public NebulaSourceFunction setExecutionOptions(ExecutionOptions executionOptions)