org.apache.flink.table.connector.sink

接口 DynamicTableSink.Context

封闭接口:

DynamicTableSink

public static interface DynamicTableSink.Context

Context for creating runtime implementation via a DynamicTableSink.SinkRuntimeProvider.

It offers utilities by the planner for creating runtime implementation with minimal dependencies to internal data structures.

Methods should be called in DynamicTableSink.getSinkRuntimeProvider(Context). The returned instances are Serializable and can be directly passed into the runtime implementation class.

方法概要

限定符和类型	方法和说明
DynamicTableSink.DataStructureConverter	createDataStructureConverter(DataType consumedDataType) Creates a converter for mapping between Flink's internal data structures and objects specified by the given DataType that can be passed into a runtime implementation.
<T> org.apache.flink.api.common.typeinfo.TypeInformation<T>	createTypeInformation(DataType consumedDataType) Creates type information describing the internal data structures of the given DataType.
boolean	isBounded() Returns whether a runtime implementation can expect a finite number of rows.

方法详细资料

isBounded

boolean isBounded()

Returns whether a runtime implementation can expect a finite number of rows.

This information might be derived from the session's execution mode and/or kind of query.

createTypeInformation

<T> org.apache.flink.api.common.typeinfo.TypeInformation<T> createTypeInformation(DataType consumedDataType)

Creates type information describing the internal data structures of the given DataType.

另请参阅:

TableSchema.toPhysicalRowDataType()

createDataStructureConverter

DynamicTableSink.DataStructureConverter createDataStructureConverter(DataType consumedDataType)

Creates a converter for mapping between Flink's internal data structures and objects specified by the given DataType that can be passed into a runtime implementation.

For example, RowData and its fields can be converted into a Row, or the internal representation for structured types can be converted back into the original (possibly nested) POJO.

另请参阅:

LogicalType.supportsOutputConversion(Class)