public Cursor(IChannelProvider provider, Bindings bindings, RowCursor input, bool[] active)
: base(provider, input)
{
Ch.CheckValue(bindings, nameof(bindings));
Ch.CheckValue(input, nameof(input));
Ch.CheckParam(active == null || active.Length == bindings.ColumnCount, nameof(active));
_bindings = bindings;
_active = active;
var length = _bindings.InfoCount;
_getters = new Delegate[length];
for (int iinfo = 0; iinfo < length; iinfo++)
{
if (_bindings.SrcCols[iinfo] < 0)
{
_getters[iinfo] = MakeGetter(iinfo);
}
}
}
private Cursor(DatabaseLoader parent, DatabaseSource source, bool[] active)
: base(parent._host)
{
Ch.Assert(active == null || active.Length == parent._bindings.OutputSchema.Count);
Ch.CheckValue(source, nameof(source));
_total = -1;
_bindings = parent._bindings;
_active = active;
_source = source;
_getters = new Delegate[_bindings.Infos.Length];
for (int i = 0; i < _getters.Length; i++)
{
if (_active != null && !_active[i])
{
continue;
}
_getters[i] = CreateGetterDelegate(i);
Ch.Assert(_getters[i] != null);
}
}
