PairItemDom.cs

using System;

namespace CMSS.Domain.Base
{
    public abstract class PairItemDom<T> : IEquatable<PairItemDom<T>>
    {
        protected PairItemDom() : this(null, default(T))
        {
        }

        protected PairItemDom(int? refId, T refValue)
        {
            this.RefId = refId;
            this.RefValue = refValue;
        }

        public int? RefId { get; set; }

        public T RefValue { get; set; }

        public bool Equals(PairItemDom<T> other)
        {
            if (ReferenceEquals(null, other)) return false;
            if (ReferenceEquals(this, other)) return true;
            return RefId == other.RefId;
        }

        public override bool Equals(object obj)
        {
            if (ReferenceEquals(null, obj)) return false;
            if (ReferenceEquals(this, obj)) return true;
            if (obj.GetType() != this.GetType()) return false;
            return Equals((PairItemDom<T>)obj);
        }

        public override int GetHashCode()
        {
            return RefId.GetHashCode();
        }

        public static bool AreObjectsEqual(PairItemDom<T> o, PairItemDom<T> o2)
        {
            if (o == null && o2 == null)
            {
                return true;
            }

            if (o == null || o2 == null)
            {
                return false;
            }

            return o.Equals(o2);
        }
    }
}