Package org.apache.flink.table.functions

Interface Summary

Interface	Description
FunctionDefinition	Definition of a function.
TableAggregateFunction.RetractableCollector<T>	Collects a record and forwards it.

Class Summary

Class	Description
AggregateFunction<T,ACC>	Base class for user-defined aggregates.
AggregateFunctionDefinition	The function definition of an user-defined aggregate function.
AsyncTableFunction<T>	Base class for a user-defined asynchronously table function (UDTF).
BuiltInFunctionDefinition	Definition of a built-in function.
BuiltInFunctionDefinition.Builder	Builder for fluent definition of built-in functions.
BuiltInFunctionDefinitions	Dictionary of function definitions for all built-in functions.
FunctionContext	A FunctionContext allows to obtain global runtime information about the context in which the user-defined function is executed.
FunctionIdentifier	Identifies a system function with function name or a catalog function with a fully qualified identifier.
FunctionService	Service for creating configured instances of UserDefinedFunction using a FunctionDescriptor.
ScalarFunction	Base class for a user-defined scalar function.
ScalarFunctionDefinition	The function definition of an user-defined scalar function.
TableAggregateFunction<T,ACC>	Base class for user-defined table aggregates.
TableAggregateFunctionDefinition	The function definition of an user-defined table aggregate function.
TableFunction<T>	Base class for a user-defined table function (UDTF).
TableFunctionDefinition	The function definition of an user-defined table function.
TemporalTableFunction	Class representing temporal table function over some history table.
UserDefinedAggregateFunction<T,ACC>	Base class for user-defined aggregates and table aggregates.
UserDefinedFunction	Base class for all user-defined functions.

Enum Summary

Enum	Description
FunctionKind	Categorizes the semantics of a FunctionDefinition.
FunctionRequirement	Characteristics that a FunctionDefinition requires.