Class CoinFunc

java.lang.Object

io.nosqlbench.virtdata.library.basics.shared.from_long.to_object.CoinFunc

All Implemented Interfaces:

Function<Long,Object>

public class CoinFunc
extends Object
implements Function<Long,Object>

This is a higher-order function which takes an input value, and flips a coin. The first parameter is used as the threshold for choosing a function. If the sample values derived from the input is lower than the threshold value, then the first following function is used, and otherwise the second is used. For example, if the threshold is 0.23, and the input value is hashed and sampled in the unit interval to 0.43, then the second of the two provided functions will be used. The input value does not need to be hashed beforehand, since the user may need to use the full input value before hashing as the input to one or both of the functions. This function will accept either a LongFunction or a Function or a LongUnaryOperator in either position. If necessary, use ToLongFunction to adapt other function forms to be compatible with these signatures.

Constructor Summary

Constructors

Constructor	Description
CoinFunc(double threshold, Object first, Object second)

Method Summary

Modifier and Type	Method	Description
Object	apply(Long aLong)

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.function.Function

andThen, compose

Constructor Details

CoinFunc

public CoinFunc(double threshold,
 Object first,
 Object second)

Method Details

apply

public Object apply(Long aLong)

Specified by:

apply in interface Function<Long,Object>