public static TextPaper Read(PaperType paperType, int id)
{
switch (paperType)
{
case PaperType.Book:
return(BookStorage.GetById(id) as TextPaper);
break;
case PaperType.Jornal:
return(JornalStorage.GetById(id) as TextPaper);
break;
case PaperType.NewsPaper:
return(NewsPaperStorage.GetById(id) as TextPaper);
break;
}
return(null);
}