66             if (map.containsKey(id.getName())) {
  67                 return map.get(id.getName());
  68             } else {
  69                 // cache the data values for coherency of the values over
  70                 // the life of this expression executer.
  71                 Monitor m = (Monitor)id.getValue();
  72                 Object v = m.getValue();
  73                 map.put(id.getName(), v);
  74                 return v;
  75             }
  76         }
  77 
  78         Expression l = e.getLeft();
  79         Expression r = e.getRight();
  80 
  81         Operator op = e.getOperator();
  82 
  83         if (op == null) {
  84             return evaluate(l);
  85         } else {
  86             Double lval = new Double(((Number)evaluate(l)).doubleValue());
  87             Double rval = new Double(((Number)evaluate(r)).doubleValue());
  88             double result = op.eval(lval.doubleValue(), rval.doubleValue());
  89             if (debug) {
  90                 System.out.println("Performed Operation: " + lval + op + rval
  91                                    + " = " + result);
  92             }
  93             return new Double(result);
  94         }
  95     }
  96 }

  66             if (map.containsKey(id.getName())) {
  67                 return map.get(id.getName());
  68             } else {
  69                 // cache the data values for coherency of the values over
  70                 // the life of this expression executer.
  71                 Monitor m = (Monitor)id.getValue();
  72                 Object v = m.getValue();
  73                 map.put(id.getName(), v);
  74                 return v;
  75             }
  76         }
  77 
  78         Expression l = e.getLeft();
  79         Expression r = e.getRight();
  80 
  81         Operator op = e.getOperator();
  82 
  83         if (op == null) {
  84             return evaluate(l);
  85         } else {
  86             Double lval = Double.valueOf(((Number)evaluate(l)).doubleValue());
  87             Double rval = Double.valueOf(((Number)evaluate(r)).doubleValue());
  88             double result = op.eval(lval.doubleValue(), rval.doubleValue());
  89             if (debug) {
  90                 System.out.println("Performed Operation: " + lval + op + rval
  91                                    + " = " + result);
  92             }
  93             return Double.valueOf(result);
  94         }
  95     }
  96 }