package org.andromda.utils.beans.comparators;
   
   import java.io.Serializable;
   import java.util.Comparator;
   
   /**
    * Used to sort Number values
    *
    * @author Chad Brandon
   */
  class NumberComparator
      implements Comparator,
          Serializable
  {
      private static final long serialVersionUID = 34L;
  
      /**
       * Used to sort Number values, both objects are assumed
       * to be Number instances.
       * @param objectA
       * @param objectB
       * @return compare result
       */
      public int compare(
          final Object objectA,
          final Object objectB)
      {
          final Number aAsNumber = (Number)objectA;
          final Number bAsNumber = (Number)objectB;
          int result = 0;
          if (aAsNumber.doubleValue() > bAsNumber.doubleValue())
          {
              result = 1;
          }
          else if (aAsNumber.doubleValue() < bAsNumber.doubleValue())
          {
              result = -1;
          }
          return result;
      }
  }