/*
* File: DenseVectorFactoryOptimized.java
* Authors: Jeremy D. Wendt
* Company: Sandia National Laboratories
* Project: Cognitive Foundry
*
* Copyright 2015, Sandia Corporation. Under the terms of Contract
* DE-AC04-94AL85000, there is a non-exclusive license for use of this work by
* or on behalf of the U.S. Government. Export of this program may require a
* license from the United States Government. See CopyrightHistory.txt for
* complete details.
*/
package gov.sandia.cognition.math.matrix.custom;
import gov.sandia.cognition.math.matrix.MatrixFactory;
import gov.sandia.cognition.math.matrix.Vector;
import gov.sandia.cognition.math.matrix.Vector1D;
import gov.sandia.cognition.math.matrix.Vector2D;
import gov.sandia.cognition.math.matrix.Vector3D;
import gov.sandia.cognition.math.matrix.VectorFactory;
/**
* Dense vector factory. Note that the constructors for DenseVector are also
* public so this need not be called.
*
* @author Jeremy D. Wendt
* @since 4.0.0
*/
public class CustomDenseVectorFactory
extends VectorFactory<DenseVector>
{
/** An instance of this class. */
public static CustomDenseVectorFactory INSTANCE = new CustomDenseVectorFactory();
@Override
final public DenseVector copyVector(
final Vector m)
{
int n = m.getDimensionality();
DenseVector result = new DenseVector(n);
for (int i = 0; i < n; ++i)
{
result.values[i] = m.get(i);
}
return result;
}
@Override
final public DenseVector createVector(
final int dim)
{
return new DenseVector(dim);
}
@Override
final public Vector1D createVector1D(
final double x)
{
return new DenseVector1D(x);
}
@Override
final public Vector2D createVector2D(
final double x,
final double y)
{
return new DenseVector2D(x, y);
}
@Override
final public Vector3D createVector3D(
final double x,
final double y,
final double z)
{
return new DenseVector3D(x, y, z);
}
@Override
public MatrixFactory<?> getAssociatedMatrixFactory()
{
return CustomDenseMatrixFactory.INSTANCE;
}
@Override
public DenseVector createVectorCapacity(
final int dimensionality,
final int initialCapacity)
{
return this.createVector(dimensionality);
}
/**
* Package-private implementation for all of the createVector1D methods
* required by the VectorFactory interface.
*/
final static class DenseVector1D
extends DenseVector
implements Vector1D
{
/**
* Package-private constructor for creating an instance
*
* @param x The value to store
*/
DenseVector1D(
final double x)
{
super(1);
this.values[0] = x;
}
@Override
final public double getX()
{
return this.values[0];
}
@Override
final public void setX(
final double x)
{
this.values[0] = x;
}
@Override
public double get(
final int index)
{
return this.values[index];
}
@Override
public void set(
final int index,
final double value)
{
this.values[index] = value;
}
@Override
public boolean isSparse()
{
return false;
}
}
/**
* Package-private implementation for all of the createVector2D methods
* required by the VectorFactory interface.
*/
final static class DenseVector2D
extends DenseVector
implements Vector2D
{
/**
* Package-private constructor for creating an instance
*
* @param x The first value to store
* @param y The second value to store
*/
DenseVector2D(
final double x,
final double y)
{
super(2);
values[0] = x;
values[1] = y;
}
@Override
final public double getX()
{
return values[0];
}
@Override
final public void setX(
final double x)
{
values[0] = x;
}
@Override
final public double getY()
{
return values[1];
}
@Override
final public void setY(
final double y)
{
values[1] = y;
}
@Override
final public void setXY(
final double x,
final double y)
{
values[0] = x;
values[1] = y;
}
@Override
final public Double getFirst()
{
return values[0];
}
@Override
final public Double getSecond()
{
return values[1];
}
@Override
public double get(
final int index)
{
return values[index];
}
@Override
public void set(
final int index,
final double value)
{
values[index] = value;
}
@Override
public boolean isSparse()
{
return false;
}
}
/**
* Package-private implementation for all of the createVector2D methods
* required by the VectorFactory interface.
*/
final static class DenseVector3D
extends DenseVector
implements Vector3D
{
/**
* Package-private constructor for creating an instance
*
* @param x The first value to store
* @param y The second value to store
* @param z The third value to store
*/
DenseVector3D(
final double x,
final double y,
final double z)
{
super(3);
values[0] = x;
values[1] = y;
values[2] = z;
}
@Override
final public double getX()
{
return values[0];
}
@Override
final public void setX(
final double x)
{
values[0] = x;
}
@Override
final public double getY()
{
return values[1];
}
@Override
final public void setY(
final double y)
{
values[1] = y;
}
@Override
final public double getZ()
{
return values[2];
}
@Override
final public void setZ(
final double z)
{
values[2] = z;
}
@Override
public Double getFirst()
{
return values[0];
}
@Override
final public Double getSecond()
{
return values[1];
}
@Override
final public Double getThird()
{
return values[2];
}
@Override
final public void setXYZ(
final double x,
final double y,
final double z)
{
values[0] = x;
values[1] = y;
values[2] = z;
}
@Override
public double get(
final int index)
{
return values[index];
}
@Override
public void set(
final int index,
final double value)
{
values[index] = value;
}
@Override
public boolean isSparse()
{
return false;
}
}
}