org.apache.arrow.vector.compare

Class ApproxEqualsVisitor

java.lang.Object

org.apache.arrow.vector.compare.RangeEqualsVisitor

org.apache.arrow.vector.compare.ApproxEqualsVisitor

All Implemented Interfaces:

VectorVisitor<Boolean,Range>

public class ApproxEqualsVisitor
extends RangeEqualsVisitor

Visitor to compare floating point vectors approximately.

Field Summary

Fields

Modifier and Type	Field and Description
static double	DEFAULT_DOUBLE_EPSILON
static float	DEFAULT_FLOAT_EPSILON Default epsilons for diff functions.

Fields inherited from class org.apache.arrow.vector.compare.RangeEqualsVisitor

DEFAULT_TYPE_COMPARATOR

Constructor Summary

Constructors

Constructor and Description
ApproxEqualsVisitor(ValueVector left, ValueVector right) Constructs a new instance with default tolerances.
ApproxEqualsVisitor(ValueVector left, ValueVector right, float floatEpsilon, double doubleEpsilon) Constructs a new instance.
ApproxEqualsVisitor(ValueVector left, ValueVector right, VectorValueEqualizer<Float4Vector> floatDiffFunction, VectorValueEqualizer<Float8Vector> doubleDiffFunction) Constructs a new instance.
ApproxEqualsVisitor(ValueVector left, ValueVector right, VectorValueEqualizer<Float4Vector> floatDiffFunction, VectorValueEqualizer<Float8Vector> doubleDiffFunction, BiFunction<ValueVector,ValueVector,Boolean> typeComparator) Constructs a new instance.

Method Summary

Modifier and Type	Method and Description
protected ApproxEqualsVisitor	createInnerVisitor(ValueVector left, ValueVector right, BiFunction<ValueVector,ValueVector,Boolean> typeComparator)
Boolean	visit(BaseFixedWidthVector left, Range range)

Methods inherited from class org.apache.arrow.vector.compare.RangeEqualsVisitor

compareBaseFixedWidthVectors, compareBaseLargeVariableWidthVectors, compareBaseVariableWidthVectors, compareDenseUnionVectors, compareFixedSizeListVectors, compareLargeListVectors, compareListVectors, compareStructVectors, compareUnionVectors, getLeft, getRight, rangeEquals, validate, visit, visit, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_FLOAT_EPSILON

public static final float DEFAULT_FLOAT_EPSILON

Default epsilons for diff functions.

See Also:

Constant Field Values

DEFAULT_DOUBLE_EPSILON

public static final double DEFAULT_DOUBLE_EPSILON

See Also:

Constant Field Values

Constructor Detail

ApproxEqualsVisitor

public ApproxEqualsVisitor(ValueVector left,
                           ValueVector right)

Constructs a new instance with default tolerances.

Parameters:

left - left vector

right - right vector

ApproxEqualsVisitor

public ApproxEqualsVisitor(ValueVector left,
                           ValueVector right,
                           float floatEpsilon,
                           double doubleEpsilon)

Constructs a new instance.

Parameters:

left - left vector

right - right vector

floatEpsilon - difference for float values

doubleEpsilon - difference for double values

ApproxEqualsVisitor

public ApproxEqualsVisitor(ValueVector left,
                           ValueVector right,
                           VectorValueEqualizer<Float4Vector> floatDiffFunction,
                           VectorValueEqualizer<Float8Vector> doubleDiffFunction)

Constructs a new instance.

ApproxEqualsVisitor

public ApproxEqualsVisitor(ValueVector left,
                           ValueVector right,
                           VectorValueEqualizer<Float4Vector> floatDiffFunction,
                           VectorValueEqualizer<Float8Vector> doubleDiffFunction,
                           BiFunction<ValueVector,ValueVector,Boolean> typeComparator)

Constructs a new instance.

Parameters:

left - the left vector.

right - the right vector.

floatDiffFunction - the equalizer for float values.

doubleDiffFunction - the equalizer for double values.

typeComparator - type comparator to compare vector type.

Method Detail

visit

public Boolean visit(BaseFixedWidthVector left,
                     Range range)

Specified by:

visit in interface VectorVisitor<Boolean,Range>

Overrides:

visit in class RangeEqualsVisitor

createInnerVisitor

protected ApproxEqualsVisitor createInnerVisitor(ValueVector left,
                                                 ValueVector right,
                                                 BiFunction<ValueVector,ValueVector,Boolean> typeComparator)

Overrides:

createInnerVisitor in class RangeEqualsVisitor