using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;



namespace Microsoft.ResourceManagement.ObjectModel

{

    public class RmAttributeChange

    {

        private RmAttributeName name;

        private IComparable attributeValue;

        private RmAttributeChangeOperation operation;



        internal RmAttributeChange(RmAttributeName name, IComparable atomicValue, RmAttributeChangeOperation operation)

        {

            this.name = name;

            this.attributeValue = atomicValue;

            this.operation = operation;

        }



        public RmAttributeName Name

        {

            get

            {

                return this.name;

            }

            set

            {

                this.name = value;

            }

        }



        public IComparable Value

        {

            get

            {

                return this.attributeValue;

            }

            set

            {

                this.attributeValue = value;

            }

        }

        

        public RmAttributeChangeOperation Operation

        {

            get

            {

                return this.operation;

            }

        }



        public override bool Equals(object obj)

        {

            RmAttributeChange other = obj as RmAttributeChange;

            if (other == null)

            {

                return false;

            }

            if (this.Name == null)

            {

                return false;

            }

            if (this.Name.Equals(other.Name) == false)

            {

                return false;

            }

            if (this.Value == null)

            {

                return other.Value == null;

            }

            else

            {

                return this.Value.Equals(other.Value);

            }

        }



        public override int GetHashCode()

        {

            if (this.attributeValue != null)

            {

                return this.attributeValue.GetHashCode();

            }

            else

            {

                return base.GetHashCode();

            }

        }



        public override string ToString()

        {

            return String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}:{1}", this.Name.ToString(), this.Value.ToString());

        }

    }



    public enum RmAttributeChangeOperation

    {

        None = 0,

        Add = 1,

        Delete = 2,

        Replace = 3

    }

}