Record Class SparseDoubleVector

java.lang.Object

java.lang.Record

io.micronaut.data.model.vector.SparseDoubleVector

Record Components:

length - The dense vector length.

indices - Sorted non-zero positions.

values - Non-zero values aligned with indices.

All Implemented Interfaces:

SparseVector, Vector

@TypeDef(type=OBJECT,
         converter=SparseDoubleVectorAttributeConverter.class)
public record SparseDoubleVector(int length, int[] indices, double[] values)
extends Record
implements SparseVector

Sparse DoubleVector representation.

Since:

5.0.0

Field Summary

Fields inherited from interface Vector

VALUES

Constructor Summary

Constructors

Constructor	Description
SparseDoubleVector(int length, int[] indices, double[] values)	Creates a sparse double vector.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)	Indicates whether some other object is "equal to" this one.
static SparseDoubleVector	fromDense(double[] denseValues)	Creates a sparse vector from dense double values.
static SparseDoubleVector	fromDense(DoubleVector denseVector)	Creates a sparse vector from a dense DoubleVector.
@NonNull Class<? extends Number>	getType()	Return the primitive number type the vector is backed by.
int	hashCode()	Returns a hash code value for this object.
int[]	indices()
int	length()	Returns the value of the length record component.
byte[]	toByteArray()	Convert this vector to a new byte array copy.
DoubleVector	toDenseVector()	Converts this sparse vector into dense DoubleVector form.
double[]	toDoubleArray()	Convert this vector to a new double array copy.
float[]	toFloatArray()	Convert this vector to a new float array copy.
String	toString()	Returns a string representation of this record class.
double[]	values()	Returns the value of the values record component.

Methods inherited from class Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface SparseVector

size

Methods inherited from interface Vector

toSparseByteVector, toSparseDoubleVector, toSparseFloatVector

Constructor Details

SparseDoubleVector

public SparseDoubleVector(int length,
 int[] indices,
 double[] values)

Creates a sparse double vector.

Parameters:

length - dense vector length

indices - sorted non-zero indices

values - non-zero values aligned with indices

Method Details

fromDense

public static SparseDoubleVector fromDense(double[] denseValues)

Creates a sparse vector from dense double values.

Parameters:

denseValues - dense values

Returns:

sparse vector representation

fromDense

public static SparseDoubleVector fromDense(DoubleVector denseVector)

Creates a sparse vector from a dense DoubleVector.

Parameters:

denseVector - dense vector

Returns:

sparse vector representation

indices

public int[] indices()

Specified by:

indices in interface SparseVector

Returns:

sorted non-zero indices

values

public double[] values()

Returns the value of the values record component.

Returns:

the value of the values record component

getType

public @NonNull Class<? extends Number> getType()

Return the primitive number type the vector is backed by.

Specified by:

getType in interface Vector

Returns:

the primitive number type (Byte.TYPE, Float.TYPE or Double.TYPE)

toFloatArray

public float[] toFloatArray()

Convert this vector to a new float array copy.

Specified by:

toFloatArray in interface Vector

Returns:

a new float[] with the vector content

toDoubleArray

public double[] toDoubleArray()

Convert this vector to a new double array copy.

Specified by:

toDoubleArray in interface Vector

Returns:

a new double[] with the vector content

toByteArray

public byte[] toByteArray()

Convert this vector to a new byte array copy.

Specified by:

toByteArray in interface Vector

Returns:

a new byte[] with the vector content

toDenseVector

public DoubleVector toDenseVector()

Converts this sparse vector into dense DoubleVector form.

Returns:

dense double vector

toString

public String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public boolean equals(Object obj)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

Specified by:

equals in class Record

Parameters:

obj - the object with which to compare

Returns:

true if this object is the same as the obj argument; false otherwise.

length

public int length()

Returns the value of the length record component.

Specified by:

length in interface SparseVector

Returns:

the value of the length record component