Package org.apache.sis.math

Class SequenceVector

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractList<Number>

org.apache.sis.math.Vector

org.apache.sis.math.SequenceVector

All Implemented Interfaces:

Serializable, Iterable<Number>, Collection<Number>, List<Number>, RandomAccess

Direct Known Subclasses:

SequenceVector.Doubles, SequenceVector.Longs

abstract class SequenceVector
extends Vector
implements Serializable

A vector which is a sequence of increasing or decreasing values. Values may be long or double types.

Since:

0.8

Version:

1.1

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	SequenceVector.Doubles	A vector which is a sequence of increasing or decreasing double values.
(package private) static final class	SequenceVector.Floats	A vector which is a sequence of increasing or decreasing float values.
(package private) static final class	SequenceVector.Longs	A vector which is a sequence of increasing or decreasing long values.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) final int	length	The length of this vector.
private static final long	serialVersionUID	For cross-version compatibility.
(package private) final Class<? extends Number>	type	The type of values in the vector.

Fields inherited from class org.apache.sis.math.Vector

PRIME

Fields inherited from class java.util.AbstractList

modCount

Constructor Summary

Constructors

Constructor	Description
SequenceVector(Class<? extends Number> type, int length)	Creates a sequence of numbers of the given length.

Method Summary

Modifier and Type	Method	Description
final Vector	compress(double tolerance)	Returns this since Apache SIS cannot create a more compact vector than this SequenceVector.
(package private) final Vector	createTransform(double scale, double offset)	Transforms the sequence.
double[]	doubleValues()	Creates the sequence as a floating point array.
float[]	floatValues()	Creates the sequence as a floating point array.
final Class<? extends Number>	getElementType()	Returns the type of elements.
final boolean	isEmptyOrNaN()	Returns true if this vector is empty or contains only NaN values.
final Number	set(int index, Number value)	Unsupported operation since this vector is not modifiable.
final int	size()	Returns the vector size.

Methods inherited from class org.apache.sis.math.Vector

backingVector, buffer, byteValue, concatenate, copy, create, create, createConcatenate, createForDecimal, createSequence, createSequence, createSubSampling, doubleValue, equals, equals, fill, floatValue, get, hashCode, increment, indexOf, intValue, isInteger, isNaN, isSinglePrecision, isUnsigned, longValue, pick, range, range, repeat, repetitions, reverse, shortValue, stringValue, subList, subSampling, subtract, toBacking, toString, transform, warning

Methods inherited from class java.util.AbstractList

add, add, addAll, clear, indexOf, iterator, lastIndexOf, listIterator, listIterator, remove, removeRange

Methods inherited from class java.util.AbstractCollection

addAll, contains, containsAll, isEmpty, remove, removeAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Methods inherited from interface java.util.List

addAll, contains, containsAll, isEmpty, remove, removeAll, replaceAll, retainAll, sort, spliterator, toArray, toArray

Field Details

serialVersionUID

private static final long serialVersionUID

For cross-version compatibility.

See Also:

• Constant Field Values

type

final Class<? extends Number> type

The type of values in the vector.

length

final int length

The length of this vector.

Constructor Details

SequenceVector

SequenceVector(Class<? extends Number> type,
 int length)

Creates a sequence of numbers of the given length.

Method Details

createTransform

final Vector createTransform(double scale,
 double offset)

Transforms the sequence. The result is always of Double type, regardless the type of elements in this vector.

Overrides:

createTransform in class Vector

getElementType

public final Class<? extends Number> getElementType()

Returns the type of elements.

Specified by:

getElementType in class Vector

Returns:

the type of elements in this vector.

See Also:

• CheckedContainer.getElementType()

size

public final int size()

Returns the vector size.

Specified by:

size in interface Collection<Number>

Specified by:

size in interface List<Number>

Specified by:

size in class Vector

Returns:

the number of elements in this vector.

isEmptyOrNaN

public final boolean isEmptyOrNaN()

Returns true if this vector is empty or contains only NaN values.

Overrides:

isEmptyOrNaN in class Vector

Returns:

whether this vector is empty or contains only NaN values.

set

public final Number set(int index,
 Number value)

Unsupported operation since this vector is not modifiable.

Specified by:

set in interface List<Number>

Specified by:

set in class Vector

Parameters:

index - the index in the [0 … size-1] range.

value - the value to set at the given index.

Returns:

the value previously stored at the given index.

compress

public final Vector compress(double tolerance)

Returns this since Apache SIS cannot create a more compact vector than this SequenceVector.

Overrides:

compress in class Vector

Parameters:

tolerance - maximal difference allowed between original and compressed vectors (can be zero).

Returns:

a more compact vector with the same data than this vector, or this.

doubleValues

public double[] doubleValues()

Creates the sequence as a floating point array.

Overrides:

doubleValues in class Vector

Returns:

a copy of all floating point values in this vector.

See Also:

• Vector.doubleValue(int)

floatValues

public float[] floatValues()

Creates the sequence as a floating point array.

Overrides:

floatValues in class Vector

Returns:

a copy of all floating point values in this vector.

See Also:

• Vector.floatValue(int)
• Vector.isSinglePrecision()