com.nomagic.magicdraw.metrics.types

Class PolymorphismFactor

java.lang.Object

com.nomagic.magicdraw.metrics.types.Metric

com.nomagic.magicdraw.metrics.types.MetricsForWholeProject

com.nomagic.magicdraw.metrics.types.PolymorphismFactor

All Implemented Interfaces:

com.nomagic.magicdraw.metrics.types.PreCalculatedMetric, java.lang.Cloneable

@OpenApi
public class PolymorphismFactor
extends com.nomagic.magicdraw.metrics.types.MetricsForWholeProject

Polymorphism factor is counted as the ratio of the actual number of possible different polymorphic situation for class (sum of overriding methods) to the maximum number of possible distinct polymorphic situations for class Ci.

It is calculated as a fraction. The numerator is the in all classes. This is the actual number of possible different polymorphic situations. A given message sent to a class can be bound, statically or dynamically, to a named method implementation. The latter can have as many shapes (morphs) as the number of times this same method is overridden in that class's descendants. The denominator represents the maximum number of possible distinct polymorphic situations for that class as the sum for each class of the number of new methods multiplied by the number of descendants. This maximum would be the case where all new methods defined in each class would be overridden in all of their derived classes.

MOOD (Metrics for Object Oriented Design) metrics describe the whole project, not individual classes.

Method Summary

Methods inherited from class com.nomagic.magicdraw.metrics.types.MetricsForWholeProject

acceptChild, acceptModelElement, calculate, getPropertiesList, isCounted, isDataPrepared, prepareData, releaseResources, setDataPrepared

Methods inherited from class com.nomagic.magicdraw.metrics.types.Metric

addProperties, addProperty, calculateLocalMetricValue, getAbbreviation, getDescription, getID, getName, getType, removeProperties, removeProperty, round, setAbbreviation, setDescription, setID, setLimits, setName

Methods inherited from class java.lang.Object

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