ComparableValue

ComparableValue.cs

namespace Sample.ValueObject
{
	public abstract class ComparableValue<TConcrete> : IComparable<TConcrete>
		where TConcrete : ComparableValue<TConcrete>
	{
		#region IComparable implementation

		public abstract int CompareTo(TConcrete other);

		#endregion

		public static bool operator > (ComparableValue<TConcrete> leftHand, ComparableValue<TConcrete> rightHand) {
			return (leftHand as TConcrete).CompareTo(rightHand as TConcrete) > 0;
		}
		
		public static bool operator >= (ComparableValue<TConcrete> leftHand, ComparableValue<TConcrete> rightHand)
		{
			return (leftHand as TConcrete).CompareTo(rightHand as TConcrete) >= 0;
		}
		
		public static bool operator < (ComparableValue<TConcrete> leftHand, ComparableValue<TConcrete> rightHand)
		{
			return (leftHand as TConcrete).CompareTo(rightHand as TConcrete) < 0;
		}
		
		public static bool operator <= (ComparableValue<TConcrete> leftHand, ComparableValue<TConcrete> rightHand)
		{
			return (leftHand as TConcrete).CompareTo(rightHand as TConcrete) <= 0;
		}
	}
	public class SimpleValue : ComparableValue<SimpleValue>
	{
		public int Value { get; private set; }
		public SimpleValue(int value) { Value = value; }

		#region IComparable implementation

		public override int CompareTo(SimpleValue other)
		{
			return Value.CompareTo(other.Value);
		}

		#endregion
	}
	
}