org.apache.flink.connector.nebula.source

类 NebulaInputTableRowFormat

java.lang.Object

org.apache.flink.api.common.io.RichInputFormat<T,org.apache.flink.core.io.InputSplit>

org.apache.flink.connector.nebula.source.NebulaInputTableRowFormat

所有已实现的接口:

Serializable, org.apache.flink.api.common.io.InputFormat<com.vesoft.nebula.client.storage.data.BaseTableRow,org.apache.flink.core.io.InputSplit>, org.apache.flink.core.io.InputSplitSource<org.apache.flink.core.io.InputSplit>

public class NebulaInputTableRowFormat
extends org.apache.flink.api.common.io.RichInputFormat<T,org.apache.flink.core.io.InputSplit>

implementation of NebulaInputFormat. Read NebulaGraph data in nebula's BaseTableRow format. how to use: NebulaInputTableRowFormat inputFormat = new NebulaInputTableRowFormat (storageConnectionProvider, vertexExecutionOptions); DataSource dataSource = env.createInput(inputFormat);

另请参阅:

序列化表格

字段概要

字段

限定符和类型	字段和说明
protected ExecutionOptions	executionOptions
protected Boolean	hasNext
protected static org.slf4j.Logger	LOG
protected NebulaConverter<T>	nebulaConverter
protected List<com.vesoft.nebula.client.storage.data.BaseTableRow>	rows
protected NebulaStorageConnectionProvider	storageConnectionProvider

构造器概要

构造器

构造器和说明
NebulaInputTableRowFormat(NebulaStorageConnectionProvider storageConnectionProvider, ExecutionOptions executionOptions)

方法概要

限定符和类型	方法和说明
void	close()
void	closeInputFormat()
void	configure(org.apache.flink.configuration.Configuration configuration)
org.apache.flink.core.io.InputSplit[]	createInputSplits(int numSplit)
org.apache.flink.core.io.InputSplitAssigner	getInputSplitAssigner(org.apache.flink.core.io.InputSplit[] inputSplits)
org.apache.flink.api.common.io.statistics.BaseStatistics	getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics baseStatistics)
T	nextRecord(T reuse)
void	open(org.apache.flink.core.io.InputSplit inputSplit)
void	openInputFormat()
boolean	reachedEnd()
org.apache.flink.connector.nebula.source.NebulaInputFormat	setExecutionOptions(ExecutionOptions executionOptions)

从类继承的方法 org.apache.flink.api.common.io.RichInputFormat

getRuntimeContext, setRuntimeContext

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

LOG

protected static final org.slf4j.Logger LOG

executionOptions

protected ExecutionOptions executionOptions

storageConnectionProvider

protected NebulaStorageConnectionProvider storageConnectionProvider

hasNext

protected Boolean hasNext

rows

protected List<com.vesoft.nebula.client.storage.data.BaseTableRow> rows

nebulaConverter

protected NebulaConverter<T> nebulaConverter

构造器详细资料

NebulaInputTableRowFormat

public NebulaInputTableRowFormat(NebulaStorageConnectionProvider storageConnectionProvider,
                                 ExecutionOptions executionOptions)

方法详细资料

open

public void open(org.apache.flink.core.io.InputSplit inputSplit)
          throws IOException

指定者:

open 在接口中 org.apache.flink.api.common.io.InputFormat<com.vesoft.nebula.client.storage.data.BaseTableRow,org.apache.flink.core.io.InputSplit>

抛出:

IOException

configure

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

openInputFormat

public void openInputFormat()
                     throws IOException

覆盖:

openInputFormat 在类中 org.apache.flink.api.common.io.RichInputFormat<T,org.apache.flink.core.io.InputSplit>

抛出:

IOException

closeInputFormat

public void closeInputFormat()
                      throws IOException

覆盖:

closeInputFormat 在类中 org.apache.flink.api.common.io.RichInputFormat<T,org.apache.flink.core.io.InputSplit>

抛出:

IOException

getStatistics

public org.apache.flink.api.common.io.statistics.BaseStatistics getStatistics(org.apache.flink.api.common.io.statistics.BaseStatistics baseStatistics)
                                                                       throws IOException

抛出:

IOException

createInputSplits

public org.apache.flink.core.io.InputSplit[] createInputSplits(int numSplit)
                                                        throws IOException

抛出:

IOException

getInputSplitAssigner

public org.apache.flink.core.io.InputSplitAssigner getInputSplitAssigner(org.apache.flink.core.io.InputSplit[] inputSplits)

reachedEnd

public boolean reachedEnd()
                   throws IOException

抛出:

IOException

nextRecord

public T nextRecord(T reuse)
             throws IOException

抛出:

IOException

close

public void close()

setExecutionOptions

public org.apache.flink.connector.nebula.source.NebulaInputFormat setExecutionOptions(ExecutionOptions executionOptions)