/// <summary>Print in readable format the execution strategy. </summary>
/// <param name="execNode">execution node to print</param>
/// <returns>readable text with execution nodes constructed for actual streams</returns>
public static String Print(ExecNode execNode)
{
var stringWriter = new StringWriter();
var indentWriter = new IndentWriter(stringWriter, 4, 2);
execNode.Print(indentWriter);
return(stringWriter.ToString());
}
/// <summary>
/// Add a child node.
/// </summary>
/// <param name="childNode">to add</param>
public void AddChildNode(ExecNode childNode)
{
_childNodes.Add(childNode);
}