org.apache.flink.table.connector.source

接口 TableFunctionProvider<T>

所有超级接口:

LookupTableSource.LookupRuntimeProvider

@PublicEvolving
public interface TableFunctionProvider<T>
extends LookupTableSource.LookupRuntimeProvider

Provider of a TableFunction instance as a runtime implementation for LookupTableSource.

The runtime will call the function with values describing the table's lookup keys (in the order of declaration in LookupTableSource.LookupContext.getKeys()).

By default, input and output DataTypes of the TableFunction are derived similar to other UserDefinedFunctions. However, for convenience, in a LookupTableSource the output type can simply be a Row or RowData in which case the input and output types are derived from the table's schema with default conversion.

方法概要

限定符和类型	方法和说明
TableFunction<T>	createTableFunction() Creates a TableFunction instance.
static <T> TableFunctionProvider<T>	of(TableFunction<T> tableFunction) Helper method for creating a static provider.

方法详细资料

of

static <T> TableFunctionProvider<T> of(TableFunction<T> tableFunction)

Helper method for creating a static provider.

createTableFunction

TableFunction<T> createTableFunction()

Creates a TableFunction instance.