org.apache.solr.analytics.function.mapping

Class DecimalNumericConversionFunction

java.lang.Object

org.apache.solr.analytics.function.mapping.DecimalNumericConversionFunction

public class DecimalNumericConversionFunction
extends Object

An abstract decimal numeric converting mapping function. For example "round()" would convert a float to an int and a double to a long.

Takes a numeric Double or Float ValueStream or Value and returns a Long or Int ValueStream or Value, respectively.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	DecimalNumericConversionFunction.CeilingFunction A numeric mapping function that returns the ceiling of the input.
static interface	DecimalNumericConversionFunction.ConvertDoubleFunction
static interface	DecimalNumericConversionFunction.ConvertFloatFunction
static class	DecimalNumericConversionFunction.FloorFunction A numeric mapping function that returns the floor of the input.
static class	DecimalNumericConversionFunction.RoundFunction A numeric mapping function that returns the rounded input.

Constructor Summary

Constructors

Constructor and Description
DecimalNumericConversionFunction()

Method Summary

Modifier and Type	Method and Description
static LongValueStream	createDecimalConversionFunction(String name, DecimalNumericConversionFunction.ConvertFloatFunction fconv, DecimalNumericConversionFunction.ConvertDoubleFunction dconv, AnalyticsValueStream... params) Create a numeric conversion mapping function.

Methods inherited from class java.lang.Object

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

Constructor Detail

DecimalNumericConversionFunction

public DecimalNumericConversionFunction()

Method Detail

createDecimalConversionFunction

public static LongValueStream createDecimalConversionFunction(String name,
                                                              DecimalNumericConversionFunction.ConvertFloatFunction fconv,
                                                              DecimalNumericConversionFunction.ConvertDoubleFunction dconv,
                                                              AnalyticsValueStream... params)

Create a numeric conversion mapping function.

Parameters:

name - the name of the function

fconv - the method to convert floats to ints

dconv - the method to convert doubles to longs

params - the parameters of the function

Returns:

an instance of the conversion function using the given parameters.