1using System;
 2
 3namespace gorilla.commons.utility
 4{
 5    [Serializable]
 6    public class Id<T>
 7    {
 8        static public readonly Id<T> Default = new Id<T>(default(T));
 9        public T id { get; private set; }
10
11        public Id(T id)
12        {
13            this.id = id;
14        }
15
16        static public implicit operator Id<T>(T id)
17        {
18            return new Id<T>(id);
19        }
20
21        static public implicit operator T(Id<T> id)
22        {
23            return id.id;
24        }
25
26        public bool Equals(Id<T> other)
27        {
28            if (ReferenceEquals(null, other)) return false;
29            if (ReferenceEquals(this, other)) return true;
30            return Equals(other.id, id);
31        }
32
33        public override bool Equals(object obj)
34        {
35            if (ReferenceEquals(null, obj)) return false;
36            if (ReferenceEquals(this, obj)) return true;
37            if (obj.GetType() != typeof (Id<T>)) return false;
38            return Equals((Id<T>) obj);
39        }
40
41        public override int GetHashCode()
42        {
43            return id.GetHashCode();
44        }
45    }
46}