org.apache.flink.table.module

Interface Module

All Known Implementing Classes:

CoreModule, HiveModule

@PublicEvolving
public interface Module

Modules define a set of metadata, including functions, user defined types, operators, rules, etc. Metadata from modules are regarded as built-in or system metadata that users can take advantages of.

Method Summary

Modifier and Type	Method and Description
default Optional<FunctionDefinition>	getFunctionDefinition(String name) Get an optional of FunctionDefinition by a give name.
default Set<String>	listFunctions() List names of all functions in this module.

Method Detail

listFunctions

default Set<String> listFunctions()

List names of all functions in this module.

Returns:

a set of function names

getFunctionDefinition

default Optional<FunctionDefinition> getFunctionDefinition(String name)

Get an optional of FunctionDefinition by a give name.

Parameters:

name - name of the FunctionDefinition.

Returns:

an optional function definition