public int CompareTo(IStructureId other)
{
if (other.IdType != IdType)
{
throw new SisoDbException(ExceptionMessages.StructureId_CompareTo_DifferentIdTypes);
}
if (Equals(other))
{
return(0);
}
if (IdType == StructureIdTypes.Identity)
{
var x = (int?)Value;
var y = (int?)other.Value;
if (x.HasValue && y.HasValue)
{
return(x.Value.CompareTo(y.Value));
}
return(x.HasValue ? -1 : 1);
}
if (IdType == StructureIdTypes.BigIdentity)
{
var x = (long?)Value;
var y = (long?)other.Value;
if (x.HasValue && y.HasValue)
{
return(x.Value.CompareTo(y.Value));
}
return(x.HasValue ? -1 : 1);
}
if (IdType.IsGuid())
{
var x = (Guid?)Value;
var y = (Guid?)other.Value;
if (x.HasValue && y.HasValue)
{
return(x.Value.CompareTo(y.Value));
}
return(x.HasValue ? -1 : 1);
}
return(Sys.StringComparer.Compare(Value.ToString(), other.Value.ToString()));
}
