com.aliyun.odps.tunnel.io

Class StreamRecordPackImpl

java.lang.Object

com.aliyun.odps.tunnel.io.StreamRecordPackImpl

All Implemented Interfaces:

TableTunnel.StreamRecordPack

public class StreamRecordPackImpl
extends Object
implements TableTunnel.StreamRecordPack

Constructor Summary

Constructors

Constructor and Description
StreamRecordPackImpl(StreamUploadSessionImpl session, CompressOption option)

Method Summary

Modifier and Type	Method and Description
void	append(Record record) append一条记录
String	flush() 数据发送到server端 pack对象在flush成功以后可以复用
TableTunnel.FlushResult	flush(TableTunnel.FlushOption opt) 数据发送到server端 pack对象在flush成功以后可以复用
long	getDataSize() 注意：由于在写到内存缓冲区前，数据会经过多层缓冲区 因此这个值的变化并不是连续的，有可能出现append数据后，getDataSize不变的场景
long	getRecordCount()
void	reset() 重置缓冲区内存，保证pack对象可以复用 pack对象在flush成功以后，会默认调用一次reset

Methods inherited from class java.lang.Object

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

Constructor Detail

StreamRecordPackImpl

public StreamRecordPackImpl(StreamUploadSessionImpl session,
                            CompressOption option)
                     throws IOException

Throws:

IOException

Method Detail

append

public void append(Record record)
            throws IOException

Description copied from interface: TableTunnel.StreamRecordPack

append一条记录

Specified by:

append in interface TableTunnel.StreamRecordPack

Throws:

IOException

getRecordCount

public long getRecordCount()

Specified by:

getRecordCount in interface TableTunnel.StreamRecordPack

Returns:

返回当前pack存储的记录数

getDataSize

public long getDataSize()

Description copied from interface: TableTunnel.StreamRecordPack

注意：由于在写到内存缓冲区前，数据会经过多层缓冲区 因此这个值的变化并不是连续的，有可能出现append数据后，getDataSize不变的场景

Specified by:

getDataSize in interface TableTunnel.StreamRecordPack

Returns:

返回当前pack存储数据的大小

flush

public String flush()
             throws IOException

Description copied from interface: TableTunnel.StreamRecordPack

数据发送到server端 pack对象在flush成功以后可以复用

Specified by:

flush in interface TableTunnel.StreamRecordPack

Returns:

traceId

Throws:

IOException

flush

public TableTunnel.FlushResult flush(TableTunnel.FlushOption opt)
                              throws IOException

Description copied from interface: TableTunnel.StreamRecordPack

数据发送到server端 pack对象在flush成功以后可以复用

Specified by:

flush in interface TableTunnel.StreamRecordPack

Parameters:

opt - 设置 write 参数 TableTunnel.FlushOption

Returns:

flush result

Throws:

IOException

reset

public void reset()
           throws IOException

Description copied from interface: TableTunnel.StreamRecordPack

重置缓冲区内存，保证pack对象可以复用 pack对象在flush成功以后，会默认调用一次reset

Specified by:

reset in interface TableTunnel.StreamRecordPack

Throws:

IOException