Sparx Systems Forum
Enterprise Architect => Suggestions and Requests => Topic started by: DamonCarr on September 16, 2005, 06:28:40 pm
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Hi!
I was really hoping that a 'Binary .NET Dissambly' would pick up a UML Dependency where I am instantiating a new class (it is not maintained, it lives only for the duration of the method) and is not a parameter passed in or out. Therefore the only way you could know about it is from code.
Perhaps my UML is wrong.. Is it not true that if a method in Class A instantiates Class B and calls services of Class B that you have a dependency now between Class A and Class B (uni-directional)?
I created an application to test this as I need it to calculate a metric I am working on for my book. I need to know about these dependencies but without a reverse engineering or access to code, there will be cases like this I don't know about.
Sparx doesn't show the dependency line on the class diagram, it only shows the Association that exists. Here is the code:
using System;
namespace UMLDependencyFailure
{
internal class Startup
{
[STAThread]
private static void Main(string[] args)
{
AnswerQuestion oAnswerer = new AnswerQuestion();
QuestionAsker oAsker = new QuestionAsker(oAnswerer);
bool Result = oAsker.IsSumOfIntegersTheSame(100, 50, 50);
Console.WriteLine(Result);
Console.Read();
}
}
}
namespace UMLDependencyFailure
{
public class QuestionAsker
{
private readonly AnswerQuestion _Answerer;
public QuestionAsker(AnswerQuestion oAnswerer)
{
_Answerer = oAnswerer;
}
public bool IsSumOfIntegersTheSame(int ExpectedSum, int SumOne, int SumTwo)
{
return _Answerer.IsQuestionTrue(ExpectedSum.ToString(), SumOne, SumTwo);
}
}
}
namespace UMLDependencyFailure
{
public class Calculator
{
public Calculator()
{}
public int AddTwoInts(int inOne, int inTwo)
{
return inOne + inTwo;
}
}
}
namespace UMLDependencyFailure
{
public class AnswerQuestion
{
public AnswerQuestion()
{}
public bool IsQuestionTrue(params object[] oParams)
{
Calculator oCalc = new Calculator();
int Result = oCalc.AddTwoInts(int.Parse(oParams[1].ToString()), int.Parse(oParams[2].ToString()));
return (Result == int.Parse(oParams[0].ToString()));
}
}
}
As you can see, in the AnswerQuestion class in the IsQuestionTrue method I create a new instance of :
Calculator oCalc = new Calculator();
and call:
int Result = oCalc.AddTwoInts(int.Parse(oParams[1].ToString()), int.Parse(oParams[2].ToString()));
This should of created a dependency but there isn't one. AM I WRONG? Is this NOT a UML Dependency?
Kind Regards,
Damon Carr, CEO
agilefactor
www.agilefactor.com
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Damon,
Can't fault your UML understanding ('coz it's the same as mine ;D).
But it was my understanding that EA doesn't look inside the method interface. Certainly I've seen no evidence for that (otherwise for example, they'd et you populate the InitalCode text box from exiting code).
HTH,
Paolo