com.pervasive.datarush.functions

Class InputMappedFactory

java.lang.Object

com.pervasive.datarush.functions.MappedEvaluatorFactory

com.pervasive.datarush.functions.InputMappedFactory

All Implemented Interfaces:

EvaluatorFactory

public class InputMappedFactory
extends MappedEvaluatorFactory

A factory mapped by the widest type encompassing one or more input values.

Nested Class Summary

Nested classes/interfaces inherited from class com.pervasive.datarush.functions.MappedEvaluatorFactory

MappedEvaluatorFactory.Mapping

Constructor Summary

Constructors

Constructor and Description
InputMappedFactory(int[] indices, MappedEvaluatorFactory.Mapping... mappings) Defines a factory using the specified mapping dispatched by the widest type of the specified arguments.
InputMappedFactory(int index, MappedEvaluatorFactory.Mapping... mappings) Defines a factory using the specified mapping and dispatched by the type of the specified argument.

Method Summary

Modifier and Type	Method and Description
protected ScalarTokenType	getDispatchType(ScalarSettable result, Object[] arguments) Determines the type to use to select the evaluator.

Methods inherited from class com.pervasive.datarush.functions.MappedEvaluatorFactory

contructEvaluator, use

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InputMappedFactory

public InputMappedFactory(int index,
                          MappedEvaluatorFactory.Mapping... mappings)

Defines a factory using the specified mapping and dispatched by the type of the specified argument.

Parameters:

index - the argument used to determine the lookup type for the evaluator

mappings - the type to evaluator mappings to use

InputMappedFactory

public InputMappedFactory(int[] indices,
                          MappedEvaluatorFactory.Mapping... mappings)

Defines a factory using the specified mapping dispatched by the widest type of the specified arguments.

Parameters:

indices - the arguments used to determine the lookup type for the evaluator.

mappings - the type to evaluator mappings to use

Method Detail

getDispatchType

protected ScalarTokenType getDispatchType(ScalarSettable result,
                                          Object[] arguments)

Description copied from class: MappedEvaluatorFactory

Determines the type to use to select the evaluator.

Specified by:

getDispatchType in class MappedEvaluatorFactory

Parameters:

result - the result buffer for the function

arguments - the arguments to the function

Returns:

the type to use to lookup the evaluator