Coverage Report - net.sourceforge.combean.graph.alg.spath.DoubleValuedPathAlgebra
 
Classes in this File Line Coverage Branch Coverage Complexity
DoubleValuedPathAlgebra
88%
7/8
N/A
0
 
 1  
 /*
 2  
     This file is part of Combean.
 3  
 
 4  
     Combean is free software; you can redistribute it and/or modify
 5  
     it under the terms of the GNU General Public License as published by
 6  
     the Free Software Foundation; either version 2 of the License, or
 7  
     (at your option) any later version.
 8  
 
 9  
     Combean is distributed in the hope that it will be useful,
 10  
     but WITHOUT ANY WARRANTY; without even the implied warranty of
 11  
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 12  
     GNU General Public License for more details.
 13  
 
 14  
     You should have received a copy of the GNU General Public License
 15  
     along with Combean; if not, write to the Free Software
 16  
     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 17  
 */
 18  
 /*
 19  
  * Created on 10.04.2005
 20  
  *
 21  
  */
 22  
 package net.sourceforge.combean.graph.alg.spath;
 23  
 
 24  
 import net.sourceforge.combean.interfaces.graph.alg.spath.PathAlgebra;
 25  
 
 26  
 /**
 27  
  * A path algebra which works with subclasses of java.lang.Number and
 28  
  * uses double values for the arithmetic
 29  
  * 
 30  
  * @author schickin
 31  
  *
 32  
  */
 33  333
 public class DoubleValuedPathAlgebra implements PathAlgebra<Double> {
 34  
 
 35  
     /**
 36  
      * constructor
 37  
      */
 38  
     public DoubleValuedPathAlgebra() {
 39  21
         super();
 40  21
     }
 41  
 
 42  
     /* (non-Javadoc)
 43  
      * @see net.sourceforge.combean.interfaces.graph.alg.spath.PathAlgebra#add(java.lang.Double, java.lang.Double)
 44  
      */
 45  
     public Double add(Double pathLenOne, Double pathLenTwo) {
 46  291
          return new Double(doubleValue(pathLenOne) + doubleValue(pathLenTwo));
 47  
     }
 48  
 
 49  
     /* (non-Javadoc)
 50  
      * @see net.sourceforge.combean.interfaces.graph.alg.spath.PathAlgebra#min(java.lang.Double, java.lang.Double)
 51  
      */
 52  
     public Double min(Double pathLenOne, Double pathLenTwo) {
 53  0
          return new Double(
 54  
                  Math.min(doubleValue(pathLenOne), doubleValue(pathLenTwo)));
 55  
     }
 56  
 
 57  
     /* (non-Javadoc)
 58  
      * @see net.sourceforge.combean.interfaces.graph.alg.spath.PathAlgebra#infinitePathLen()
 59  
      */
 60  
     public Double infinitePathLen() {
 61  21
          return new Double(Double.POSITIVE_INFINITY);
 62  
     }
 63  
 
 64  
     /* (non-Javadoc)
 65  
      * @see net.sourceforge.combean.interfaces.graph.alg.spath.PathAlgebra#emptyPathLen()
 66  
      */
 67  
     public Double emptyPathLen() {
 68  21
          return new Double(0.0);
 69  
     }
 70  
 
 71  
     
 72  
     /**
 73  
      * Convenience method which converts a Double (which is casted to
 74  
      * Number) to a double value.
 75  
      * 
 76  
      * @param num the Number to be converted.
 77  
      * @return the double value of num
 78  
      */
 79  
     private double doubleValue(Double num) {
 80  582
         return ((Number) num).doubleValue();
 81  
     }
 82  
 }