Class HashedDoubleVectors

java.lang.Object

io.nosqlbench.virtdata.lib.vectors.primitive.HashedDoubleVectors

All Implemented Interfaces:

LongFunction<double[]>

public class HashedDoubleVectors
extends Object
implements LongFunction<double[]>

Construct an arbitrarily large vector with hashes. The initial value is assumed to be non-hashed, and is thus hashed on input to ensure that inputs are non-contiguous. Once the starting value is hashed, the sequence of long values is walked and each value added to the vector is hashed from the values in that sequence.

Constructor Summary

Constructors

Constructor	Description
HashedDoubleVectors(Object sizer)
HashedDoubleVectors(Object sizer, double min, double max)
HashedDoubleVectors(Object sizer, Object valueFunc)	Build a double[] generator with a given size value or size function, and the given long->double function.

Method Summary

Modifier and Type	Method	Description
double[]	apply(long value)

Methods inherited from class java.lang.Object

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

Constructor Details

HashedDoubleVectors

public HashedDoubleVectors(Object sizer,
 Object valueFunc)

Build a double[] generator with a given size value or size function, and the given long->double function.

Parameters:

sizer - Either a numeric type which sets a fixed dimension, or a long->int function to derive it uniquely for each input

valueFunc - A long->double function

HashedDoubleVectors

public HashedDoubleVectors(Object sizer,
 double min,
 double max)

HashedDoubleVectors

public HashedDoubleVectors(Object sizer)

Method Details

apply

public double[] apply(long value)

Specified by:

apply in interface LongFunction<double[]>