public IQueryable <TEntity> Set <TEntity>()
where TEntity : class
{
if (typeof(TEntity) == typeof(NullSemanticsEntity1))
{
return((IQueryable <TEntity>)Entities1.AsQueryable());
}
if (typeof(TEntity) == typeof(NullSemanticsEntity2))
{
return((IQueryable <TEntity>)Entities2.AsQueryable());
}
throw new InvalidOperationException("Invalid entity type: " + typeof(TEntity));
}
