edu.claflin.finder.logic.comp

Class EdgeWeightComparator

java.lang.Object

edu.claflin.finder.logic.comp.EdgeWeightComparator

All Implemented Interfaces:

java.util.Comparator<Edge>

public class EdgeWeightComparator
extends java.lang.Object
implements java.util.Comparator<Edge>

A simple edge weight comparator in which the edge data is considered a numeric value and used as the comparison benchmark.

Version:

3.0 February 4, 2016

Author:

Charles Allen Schultz II

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	ascending Indicates if the comparator should sort elements in ascending order.

Constructor Summary

Constructors

Constructor and Description
EdgeWeightComparator(boolean ascending) Constructs an EdgeWeightComparator.

Method Summary

Modifier and Type	Method and Description
int	compare(Edge o1, Edge o2) Compares the edges based on the D data held by the edge.
private java.math.BigDecimal	toNumber(java.lang.Object object) Converts an unknown object into a BigDecimal if possible.

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

ascending

private final boolean ascending

Indicates if the comparator should sort elements in ascending order.

Constructor Detail

EdgeWeightComparator

public EdgeWeightComparator(boolean ascending)

Constructs an EdgeWeightComparator.

Parameters:

ascending - boolean indicating if edges should be sorted in ascending order.

Method Detail

compare

public int compare(Edge o1,
                   Edge o2)

Compares the edges based on the D data held by the edge. Assumes the data is a numeric value.

Specified by:

compare in interface java.util.Comparator<Edge>

Parameters:

o1 - the first edge to compare.

o2 - the second edge to compare.

Returns:

-1, 0, or 1 if the first edge is ordered before, the same as, or after the second.

toNumber

private java.math.BigDecimal toNumber(java.lang.Object object)

Converts an unknown object into a BigDecimal if possible.

Parameters:

object - the Object to convert.

Returns:

the converted BigDecimal object.