| Line | Hits | Source |
|---|---|---|
| 1 | /* | |
| 2 | * Copyright (c) 2004, the JUNG Project and the Regents of the University of | |
| 3 | * California All rights reserved. | |
| 4 | * | |
| 5 | * This software is open-source under the BSD license; see either "license.txt" | |
| 6 | * or http://jung.sourceforge.net/license.txt for a description. | |
| 7 | * | |
| 8 | * Created on Aug 9, 2004 | |
| 9 | */ | |
| 10 | package edu.uci.ics.jung.graph.predicates; | |
| 11 | ||
| 12 | import org.apache.commons.collections.Predicate; | |
| 13 | ||
| 14 | /** | |
| 15 | * A predicate which passes Numbers whose value satisfies a threshold requirement. | |
| 16 | * | |
| 17 | * @author Joshua O'Madadhain | |
| 18 | */ | |
| 19 | public class ThresholdPredicate implements Predicate | |
| 20 | { | |
| 21 | protected double threshold; | |
| 22 | protected boolean greater_equal; | |
| 23 | ||
| 24 | /** | |
| 25 | * Creates a ThresholdPredicate with the specified threshold value. | |
| 26 | * If <code>greater_equal</code> is true, only objects whose double | |
| 27 | * values are greater than or equal to <code>threshold</code> will evaluate to | |
| 28 | * <code>true</code>; otherwise, only objects whose values are less | |
| 29 | * than or equal will evaluate to true. | |
| 30 | * | |
| 31 | * @param threshold the threshold value | |
| 32 | * @param greater_equal | |
| 33 | */ | |
| 34 | public ThresholdPredicate(double threshold, boolean greater_equal) | |
| 35 | 0 | { |
| 36 | 0 | this.threshold = threshold; |
| 37 | 0 | this.greater_equal = greater_equal; |
| 38 | 0 | } |
| 39 | ||
| 40 | /** | |
| 41 | * @see org.apache.commons.collections.Predicate#evaluate(java.lang.Object) | |
| 42 | */ | |
| 43 | public boolean evaluate(Object arg0) | |
| 44 | { | |
| 45 | 0 | double value = ((Number)arg0).doubleValue(); |
| 46 | 0 | if (greater_equal && value >= threshold) |
| 47 | 0 | return true; |
| 48 | 0 | if (!greater_equal && value <= threshold) |
| 49 | 0 | return true; |
| 50 | 0 | return false; |
| 51 | } | |
| 52 | } |
|
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