/// <summary>
/// Creates an <see cref="IReadableColumnProxy"/> from a given column.
/// </summary>
/// <param name="column">The column.</param>
/// <returns>An instance of <see cref="IReadableColumnProxy"/>. The type of instance returned depends on the type of the provided column (e.g. whether the column is part of the document or not).</returns>
public static IReadableColumnProxy FromColumn(IReadableColumn column)
{
if (column is ITransformedReadableColumn)
{
var tcolumn = (ITransformedReadableColumn)column;
if (tcolumn.UnderlyingReadableColumn is IDocumentLeafNode)
{
return(TransformedReadableColumnProxy.FromColumn(tcolumn));
}
else
{
return(TransformedReadableColumnProxyForStandaloneColumns.FromColumn(tcolumn));
}
}
else
{
if (column is IDocumentLeafNode)
{
return(ReadableColumnProxy.FromColumn(column));
}
else
{
return(ReadableColumnProxyForStandaloneColumns.FromColumn(column));
}
}
}
/// <summary>
/// Cloning constructor.
/// </summary>
/// <param name="from">Object to clone from.</param>
public TransformedReadableColumnProxy(TransformedReadableColumnProxy from)
: base(from)
{
_transformation = from._transformation; // transformation is immutable
}
/// <summary>
/// Cloning constructor.
/// </summary>
/// <param name="from">Object to clone from.</param>
public TransformedReadableColumnProxy(TransformedReadableColumnProxy from)
: base(from)
{
_transformation = from._transformation; // transformation is immutable
}
