private ResultsetReader(Resultset source, ResultsetReader parent)
{
m_source = source;
m_settings = parent.m_settings;
m_nameTable = parent.m_nameTable;
m_queue = new Queue<object>();
m_createRoot = false;
CreateSchema("dummy", source.RowType.GetSchemaTable());
}
public override object Execute(object context, object[] args, XmlDocument xmlResult)
{
if (context != null)
{
XmlNode node = context as XmlNode;
if (node == null)
{
if (context is Resultset)
{
XmlReader reader = new ResultsetReader((Resultset)context,
"context", _command.Context.GetSettings());
XQueryDocument tmp = new XQueryDocument(reader);
_command.ContextItem = tmp.CreateNavigator();
}
else
throw new ESQLException(
String.Format(Properties.Resources.XmlQueryContextMustBeANode, context), null);
}
else
_command.ContextItem = node.CreateNavigator();
}
if (args != null)
{
for (int k = 0; k < args.Length; k++)
{
XQueryParameter param = _command.Parameters[k];
object val = args[k];
if (val is Resultset)
{
XmlReader reader = new ResultsetReader((Resultset)val,
XmlConvert.EncodeName(param.LocalName), _command.Context.GetSettings());
XQueryDocument tmp = new XQueryDocument(reader);
param.Value = tmp.CreateNavigator();
}
else if (val is XmlNode)
param.Value = ((XmlNode)val).CreateNavigator();
else if (val is XmlNodeList)
param.Value = new XmlNodeListIterator((XmlNodeList)val);
else
param.Value = val;
}
}
XQueryNodeIterator iter = _command.Execute();
DOMConverter converter = new DOMConverter(xmlResult);
XmlDataAccessor.NodeList res = new XmlDataAccessor.NodeList();
while (iter.MoveNext())
res.Add(converter.ToXmlNode(iter.Current));
if (res.Count == 1)
return res[0];
return res;
}