public int CompareTo(IIdentifier other)
{
if (ReferenceEquals(null, other))
{
return(1);
}
if (other is Identifier <TId> id)
{
if (this.GetType() != other.GetType())
{
throw new ArgumentException($"Cannot compare to an instance of {other.GetType().Name}");
}
return(this._id.CompareTo(id._id));
}
throw new ArgumentException($"Cannot compare to an instance of {other.GetType().Name}");
}
/// <summary>
/// 比较引用与标识是否相等。
/// </summary>
/// <param name="other">给定的 <see cref="IIdentifier{TId}"/>。</param>
/// <returns>返回布尔值。</returns>
protected virtual bool ReferenceAndIdEquals(IIdentifier <TId> other)
{
if (ReferenceEquals(this, other))
{
return(true);
}
if (GetType() != other.GetType())
{
return(false);
}
return(Id.Equals(other.Id));
}
public int CompareTo(IIdentifier other)
{
if (ReferenceEquals(null, other))
{
return(-1);
}
if (other is Identifier id)
{
return(this._id.CompareTo(id._id));
}
// how to compare ids of different types?
// I suppose it's arbitrary?
// if so, a quick compare would be good
return(string.CompareOrdinal(this.GetType().Name, other.GetType().Name));
}