Visitor Pattern C#: It Will Be Glad If Anyone Can Verify The Code Which I Have Written Below Is Following Visitor Design Pattern.(New code))

Question

1.00/5 (1 vote)

See more:

, +

Learning Visitor pattern C#: It will be glad if anyone can verify the code which i have written below is following visitor design pattern.

Visitor

C#

namespace Visitorpattern3
{
    interface IVisitor
    {
        void GetLocation(ConcreateElementGetLocation location);
        void GetPackage(ConcreateElementGetPackage package);
        void GetDesignation(ConcreateElementGetDesignation designation);
    }
}

Concrete visitor

C#

namespace Visitorpattern3
{
    class ConcreateVisitorWipro:IVisitor
    {
        public void GetLocation(ConcreateElementGetLocation location)
        {
            Console.WriteLine("WIPRO: Location Bnagalore");
        }

        public void GetPackage(ConcreateElementGetPackage package)
        {
            Console.WriteLine("WIPRO: Package 8 Lakhs");
        }

        public void GetDesignation(ConcreateElementGetDesignation designation)
        {
            Console.WriteLine("WIPRO: Designation Developer");
        }
    }

    class ConcreateVisitorTcs : IVisitor
    {
        public void GetLocation(ConcreateElementGetLocation location)
        {
            Console.WriteLine("TCS: Location UK");
        }

        public void GetPackage(ConcreateElementGetPackage package)
        {
            Console.WriteLine("TCS: Package 20 Lakhs");
        }

        public void GetDesignation(ConcreateElementGetDesignation designation)
        {
            Console.WriteLine("TCS: Designation Tester");
        }
    }

    class ConcreateVisitorInfo : IVisitor
    {
        public void GetLocation(ConcreateElementGetLocation location)
        {
            Console.WriteLine("INFO: Lcation UK");

        }

        public void GetPackage(ConcreateElementGetPackage package)
        {
            Console.WriteLine("INFO: package 10 lakhs");
        }

        public void GetDesignation(ConcreateElementGetDesignation designation)
        {
            Console.WriteLine("INFO: Designation Architect");
        }
    }
}

Element

C#

namespace Visitorpattern3
{
    interface IElement
    {
        void Accept(IVisitor visitor);
    }
}

Concrete element

C#

namespace Visitorpattern3
{
    class ConcreateElementGetLocation:IElement
    {
        public void Accept(IVisitor visitor)
        {
            visitor.GetLocation(this);

        }
    }
    class ConcreateElementGetPackage : IElement
    {
        public void Accept(IVisitor visitor)
        {
           visitor.GetPackage(this);
        }
    }
    class ConcreateElementGetDesignation : IElement
    {
        public void Accept(IVisitor visitor)
        {
            visitor.GetDesignation(this);
        }
    }
}

Program

C#

namespace Visitorpattern3
{
    class Program
    {
        static void Main(string[] args)
        {
            var objlist = new List<IElement>
            {
                new ConcreateElementGetDesignation(),
                new ConcreateElementGetLocation(),
                new ConcreateElementGetPackage()
            };

  


            ConcreateVisitorWipro wipro = new ConcreateVisitorWipro();
            ConcreateVisitorTcs tcs = new ConcreateVisitorTcs();
            ConcreateVisitorInfo info = new ConcreateVisitorInfo();

            foreach (IElement ieleElement in objlist)
            {
                ieleElement.Accept(wipro);
                ieleElement.Accept(tcs);
                ieleElement.Accept(info);
                
            }
          
            

            Console.ReadLine();
        }
    }
}

Is this correct ? If not where i went wrong?

Posted 16-Feb-15 1:10am

Am Gayathri

Updated 16-Feb-15 2:03am

v3

Add a Solution

Comments

John C Rayan 16-Feb-15 8:43am

I would recommend to use one Visitor. Why do you need 3 visitors? Also it is better to use abstract class than interface.

Am Gayathri 16-Feb-15 9:08am

Thanks for your inputs...

John C Rayan 16-Feb-15 9:26am

Please look at my code. you might need be looking for something like that. Let me know.

Am Gayathri 17-Feb-15 0:42am

Thanks.. Actually am learning visitor pattern.

1 solution

Add a Solution

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

John C Rayan · Accepted Answer · 2015-02-16T03:24:00

C#

class Program
    {
        static void Main(string[] args)
        {


            var objlist = new List<IElement>
            {
                new TcsDesignation(),
                new WiproLocation(),
                new InfoPackage(),
                new InfoDesignation(),
                new TcsLocation(),
                new TcsPackage()
            };




            ITCompanyVisitor visitor = new ITCompanyVisitor();

            foreach (IElement ieleElement in objlist)
            {
                ieleElement.Accept(visitor);

            }


        }
    }



        abstract class Visitor
        {
            public abstract void GetLocation(TcsLocation location);
            public abstract void GetLocation(WiproLocation location);
            public abstract void GetLocation(InfoLocation location);

            public abstract void GetPackage(TcsPackage package);
            public abstract void GetPackage(WiproPackage package);
            public abstract void GetPackage(InfoPackage package);

            public abstract void GetDesignation(TcsDesignation designation);
            public abstract void GetDesignation(WiproDesignation designation);
            public abstract void GetDesignation(InfoDesignation designation);

        }


        class ITCompanyVisitor : Visitor
        {

            void GetLocation(TcsLocation location)
            {
            }
            void GetLocation(WiproLocation location)
            {
            }
            void GetLocation(InfoLocation location)
            {
            }

            void GetPackage(TcsPackage package)
            {
            }
            void GetPackage(WiproPackage package)
            {
            }
            void GetPackage(InfoPackage package)
            {
            }

            void GetDesignation(TcsDesignation designation)
            {
            }
            void GetDesignation(WiproDesignation designation)
            {
            }
            void GetDesignation(InfoDesignation designation)
            {
            }


        }



        interface IElement
        {
            void Accept(Visitor visitor);
        }


        class TcsLocation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetLocation(this);

            }
        }
        class TcsPackage : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetPackage(this);
            }
        }
        class TcsDesignation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetDesignation(this);
            }
        }


        class WiproLocation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetLocation(this);

            }
        }
        class WiproPackage : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetPackage(this);
            }
        }
        class WiproDesignation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetDesignation(this);
            }
        }

        class InfoLocation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetLocation(this);

            }
        }
        class InfoPackage : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetPackage(this);
            }
        }
        class InfoDesignation : IElement
        {
            public void Accept(Visitor visitor)
            {
                visitor.GetDesignation(this);
            }
        }

}

Visitor Pattern C#: It Will Be Glad If Anyone Can Verify The Code Which I Have Written Below Is Following Visitor Design Pattern.(New code))

1 solution

Solution 1

Add your solution here

Preview 0

Visitor Pattern C#: It Will Be Glad If Anyone Can Verify The Code Which I Have Written Below Is Following Visitor Design Pattern.(New code))

1 solution

Solution 1

Add your solution here

Preview 0

Existing Members

...or Join us