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.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	ApproxEqualsVisitor.DiffFunctionDouble Difference function for double values.
static interface	ApproxEqualsVisitor.DiffFunctionFloat Difference function for float values.

Constructor Summary

Constructors

Constructor and Description
ApproxEqualsVisitor(ValueVector left, ValueVector right, float floatEpsilon, double doubleEpsilon) Constructs a new instance.

Method Summary

Modifier and Type	Method and Description
protected ApproxEqualsVisitor	createInnerVisitor(ValueVector left, ValueVector right) Creates a visitor to visit child vectors.
void	setDoubleDiffFunction(ApproxEqualsVisitor.DiffFunctionDouble doubleDiffFunction)
void	setFloatDiffFunction(ApproxEqualsVisitor.DiffFunctionFloat floatDiffFunction)
Boolean	visit(BaseFixedWidthVector left, Range range)

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

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

Method Detail

setFloatDiffFunction

public void setFloatDiffFunction(ApproxEqualsVisitor.DiffFunctionFloat floatDiffFunction)

setDoubleDiffFunction

public void setDoubleDiffFunction(ApproxEqualsVisitor.DiffFunctionDouble doubleDiffFunction)

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)

Description copied from class: RangeEqualsVisitor

Creates a visitor to visit child vectors. It is used for complex vector types.

Overrides:

createInnerVisitor in class RangeEqualsVisitor

Returns:

the visitor for child vecors.