public override RowCursor[] GetRowCursorSet(Func <int, bool> needCol, int n, Random rand = null)
{
if (_transform == null)
{
lock (_lock)
if (_transform == null)
{
_transform = CreateTemplatedTransform();
}
}
Host.AssertValue(_transform, "_transform");
Host.AssertValue(_trend, "_trend");
return(_transform.GetRowCursorSet(needCol, n, rand));
}
public override DataViewRowCursor[] GetRowCursorSet(IEnumerable <DataViewSchema.Column> columnsNeeded, int n, Random rand = null)
{
if (_transform == null)
{
lock (_lock)
if (_transform == null)
{
_transform = CreateTemplatedTransform();
}
}
Host.AssertValue(_transform, "_transform");
Host.AssertValue(_trend, "_trend");
return(_transform.GetRowCursorSet(columnsNeeded, n, rand));
}
public RowCursor[] GetRowCursorSet(Func <int, bool> predicate, int n, Random rand = null)
{
_host.AssertValue(_transform, "_transform");
return(_transform.GetRowCursorSet(predicate, n, rand));
}
public override IRowCursor[] GetRowCursorSet(out IRowCursorConsolidator consolidator, Func <int, bool> predicate, int n, IRandom rand = null)
{
Host.AssertValue(_pipedTransform, "_pipedTransform");
return(_pipedTransform.GetRowCursorSet(out consolidator, predicate, n, rand));
}
public override DataViewRowCursor[] GetRowCursorSet(IEnumerable <DataViewSchema.Column> columnsNeeded, int n, Random rand = null)
{
Host.AssertValue(_pipedTransform, "_pipedTransform");
return(_pipedTransform.GetRowCursorSet(columnsNeeded, n, rand));
}
public override RowCursor[] GetRowCursorSet(Func <int, bool> predicate, int n, Random rand = null)
{
Host.AssertValue(_pipedTransform, "_pipedTransform");
return(_pipedTransform.GetRowCursorSet(predicate, n, rand));
}