com.aliyun.odps.table.write

Interface TableWriteSession

All Superinterfaces:

Serializable, Session

All Known Subinterfaces:

TableBatchWriteSession, TableStreamingWriteSession, TableUpsertSession

All Known Implementing Classes:

TableBatchWriteSessionBase, TableBatchWriteSessionImpl

public interface TableWriteSession
extends Session

A logical representation of a maxcompute table sink.

Nested Class Summary

Nested classes/interfaces inherited from interface com.aliyun.odps.table.Session

Session.Provider

Method Summary

Modifier and Type	Method and Description
default Optional<Long>	maxBlockNumber() Returns the max parallelism required by this table write session.
default Distribution	requiredDistribution() Returns the distribution required by this table write session.
default SortOrder[]	requiredOrdering() Returns the ordering required by this table write session.
DataSchema	requiredSchema() Returns the schema for table write session.
boolean	supportsDataFormat(DataFormat dataFormat) Returns whether the data format is supported by this table write session.

Methods inherited from interface com.aliyun.odps.table.Session

description, getId, getStatus, getTableIdentifier, getType

Method Detail

requiredSchema

DataSchema requiredSchema()

Returns the schema for table write session.

supportsDataFormat

boolean supportsDataFormat(DataFormat dataFormat)

Returns whether the data format is supported by this table write session.

maxBlockNumber

default Optional<Long> maxBlockNumber()

Returns the max parallelism required by this table write session.

Returns:

empty if the table sink does not provide a max parallelism

requiredDistribution

default Distribution requiredDistribution()

Returns the distribution required by this table write session.

Returns:

UnspecifiedDistribution if the table sink does not provide a distribution

requiredOrdering

default SortOrder[] requiredOrdering()

Returns the ordering required by this table write session.

Returns:

empty sort order if the table sink does not provide a sort order