Uses of Interface
com.pervasive.datarush.functions.FunctionTyper

Packages that use FunctionTyper

Package	Description
com.pervasive.datarush.functions	Provides classes and interfaces related to defining functions on records.

Uses of FunctionTyper in com.pervasive.datarush.functions

Classes in com.pervasive.datarush.functions that implement FunctionTyper

Modifier and Type	Class and Description
class	FixedType A typer for functions which return a fixed, known type.
class	WidestInputTyper A typer determining the output type of a function based on the types of one or more inputs.

Methods in com.pervasive.datarush.functions with parameters of type FunctionTyper

Modifier and Type	Method and Description
static ScalarValuedFunction	ScalarFunctionDescriptor.define(String name, FunctionTyper typer, Class<? extends FunctionEvaluator> evaluator, Object... args) Defines an instance of a function returning a result using an evaluator of the given class, but with complex type restrictions and/or variable output type.
static ScalarValuedFunction	ScalarFunctionDescriptor.define(String name, FunctionTyper typer, EvaluatorFactory factory, Object... args) Defines an instance of a function requiring complex logic for determining result type and/or checking function arguments, as well as needing to choose between possible evaluator implementations.