ru.sscc.util.data
Class DoubleSVecPointer

java.lang.Object
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  +--ru.sscc.util.data.RealPointer
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        +--ru.sscc.util.data.DoubleSVecPointer

public final class DoubleSVecPointer

extends RealPointer

An implementation of RealPointer for access to a component of vectors array based on double[] type container indexed by short[] reference vector (the sign bit of reference entries is considered as the numeric bit).

Fields inherited from class ru.sscc.util.data.RealPointer

index, step

Constructor Summary

DoubleSVecPointer(double[] data, short[] ref, int component, int dimension, int index, int step)
Constructor.

Method Summary

double	add(double value) Adds a value to the entry at the current pointer position.
double	get() Gets an entry value at the current pointer position.
double	mul(double value) Multiplies the entry at the current pointer position by a value.
double	set(double value) Sets an entry value at the current pointer position.

Methods inherited from class ru.sscc.util.data.RealPointer

by, clone, invert, next, previous, reset, restore, save, shift

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleSVecPointer

public DoubleSVecPointer(double[] data,
                         short[] ref,
                         int component,
                         int dimension,
                         int index,
                         int step)

Constructor.

Parameters:

data - a data container for vectors

ref - a reference vector

component - a number of vector's component

dimension - a vector dimension

index - a starting index in the reference vector

step - an increment step in the reference vector

Method Detail

get

public double get()

Gets an entry value at the current pointer position.

Overrides:

get in class RealPointer

Returns:

value of the current entry

set

public double set(double value)

Sets an entry value at the current pointer position.

Overrides:

set in class RealPointer

Parameters:

value - a value to set

Returns:

the set value

add

public double add(double value)

Adds a value to the entry at the current pointer position.

Overrides:

add in class RealPointer

Parameters:

value - a value to add

Returns:

the result of addition

mul

public double mul(double value)

Multiplies the entry at the current pointer position by a value.

Overrides:

mul in class RealPointer

Parameters:

value - a value to multiply

Returns:

the result of multiplication