public PModel(IStorage rep, string model, bool deferredLoad)
{
this.objectsIndex = new Dictionary<int,IPObject>();
int objectId = rep.RootObjectId(model, -1);
if (objectId == -1)
throw new Exception(string.Format("Модель с кодом \"{0}\" не найдена", model));
Root = new PObject(rep, objectId, objectsIndex, deferredLoad);
_storage = rep;
}