org.apache.flink.connector.nebula.sink

Class NebulaBatchOutputFormat<T,OptionsT extends ExecutionOptions>

java.lang.Object

org.apache.flink.api.common.io.RichOutputFormat<T>

org.apache.flink.connector.nebula.sink.NebulaBatchOutputFormat<T,OptionsT>

All Implemented Interfaces:

Flushable, Serializable, org.apache.flink.api.common.io.OutputFormat<T>

Direct Known Subclasses:

NebulaEdgeBatchOutputFormat, NebulaEdgeBatchTableOutputFormat, NebulaVertexBatchOutputFormat, NebulaVertexBatchTableOutputFormat

public abstract class NebulaBatchOutputFormat<T,OptionsT extends ExecutionOptions>
extends org.apache.flink.api.common.io.RichOutputFormat<T>
implements Flushable

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected OptionsT	executionOptions
protected NebulaGraphConnectionProvider	graphProvider
protected com.vesoft.nebula.client.meta.MetaClient	metaClient
protected NebulaMetaConnectionProvider	metaProvider
protected NebulaBatchExecutor<T>	nebulaBatchExecutor

Constructor Summary

Constructors

Constructor and Description
NebulaBatchOutputFormat(NebulaGraphConnectionProvider graphProvider, NebulaMetaConnectionProvider metaProvider, OptionsT executionOptions)

Method Summary

Modifier and Type	Method and Description
void	close() commit the batch write operator before release connection
void	configure(org.apache.flink.configuration.Configuration configuration)
protected abstract NebulaBatchExecutor<T>	createNebulaBatchExecutor()
void	flush() commit the batch write operator
void	open(int i, int i1) prepare all resources
void	writeRecord(T row) write one record to buffer

Methods inherited from class org.apache.flink.api.common.io.RichOutputFormat

getRuntimeContext, setRuntimeContext

Methods inherited from class java.lang.Object

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

Field Detail

metaClient

protected com.vesoft.nebula.client.meta.MetaClient metaClient

metaProvider

protected final NebulaMetaConnectionProvider metaProvider

graphProvider

protected final NebulaGraphConnectionProvider graphProvider

executionOptions

protected final OptionsT extends ExecutionOptions executionOptions

nebulaBatchExecutor

protected NebulaBatchExecutor<T> nebulaBatchExecutor

Constructor Detail

NebulaBatchOutputFormat

public NebulaBatchOutputFormat(NebulaGraphConnectionProvider graphProvider,
                               NebulaMetaConnectionProvider metaProvider,
                               OptionsT executionOptions)

Method Detail

configure

public void configure(org.apache.flink.configuration.Configuration configuration)

Specified by:

configure in interface org.apache.flink.api.common.io.OutputFormat<T>

open

public void open(int i,
                 int i1)
          throws IOException

prepare all resources

Specified by:

open in interface org.apache.flink.api.common.io.OutputFormat<T>

Throws:

IOException

createNebulaBatchExecutor

protected abstract NebulaBatchExecutor<T> createNebulaBatchExecutor()

writeRecord

public final void writeRecord(T row)
                       throws IOException

write one record to buffer

Specified by:

writeRecord in interface org.apache.flink.api.common.io.OutputFormat<T>

Throws:

IOException

close

public final void close()
                 throws IOException

commit the batch write operator before release connection

Specified by:

close in interface org.apache.flink.api.common.io.OutputFormat<T>

Throws:

IOException

flush

public void flush()
           throws IOException

commit the batch write operator

Specified by:

flush in interface Flushable

Throws:

IOException