private static IList RunQueryForList(RequestScope request, ISqlMapSession session, object parameterObject, IStatement _statement)
{
IList list = null;
using (IDbCommand command = request.IDbCommand)
{
list = (_statement.ListClass == null)? (new ArrayList()):(_statement.CreateInstanceOfListClass());
IDataReader reader = command.ExecuteReader();
try
{
while (reader.Read())
{
object obj = ResultStrategyFactory.Get(_statement).Process(request, ref reader, null);
if (obj != BaseStrategy.SKIP)
{
list.Add(obj);
}
}
}
catch
{
throw;
}
finally
{
reader.Close();
reader.Dispose();
}
ExecutePostSelect(request);
RetrieveOutputParameters(request, session, command, parameterObject);
}
return(list);
}
internal static IList RunQueryForList(IStatement statement, RequestScope request, ISession session, object parameterObject, IList resultObject, RowDelegate rowDelegate)
{
IResultStrategy resultStrategy = ResultStrategyFactory.Get(statement);
IList list = resultObject;
using (IDbCommand command = request.IDbCommand)
{
if (resultObject == null)
{
if (statement.ListClass == null)
{
list = new ArrayList();
}
else
{
list = statement.CreateInstanceOfListClass();
}
}
IDataReader reader = command.ExecuteReader();
try
{
do
{
if (rowDelegate == null)
{
//***
IList currentList = null;
if (request.Statement.ResultsMap.Count == 1)
{
currentList = list;
}
else
{
if (request.CurrentResultMap != null)
{
Type genericListType = typeof(List <>).MakeGenericType(new Type[] { request.CurrentResultMap.Class });
currentList = (IList)Activator.CreateInstance(genericListType);
}
else
{
currentList = new ArrayList();
}
list.Add(currentList);
}
//***
while (reader.Read())
{
//将reader当前行中的所有字段加入到IList对象中，即obj中
object obj = resultStrategy.Process(request, ref reader, null);
if (obj != BaseStrategy.SKIP)
{
//list.Add(obj);
currentList.Add(obj);
}
}
}
else
{
while (reader.Read())
{
object obj = resultStrategy.Process(request, ref reader, null);
rowDelegate(obj, parameterObject, list);
}
}
}while (reader.NextResult());
}
finally
{
reader.Close();
reader.Dispose();
}
ExecuteDelayedLoad(request);
RetrieveOutputParameters(request, session, command, parameterObject);
}
return(list);
}