private static void FlushCaches()
{
// Whenever a mapper is registered or revoked, we have to assume any generated code is no longer valid.
// Since this should be a rare occurrence, the simplest approach is to simply dump everything and start over.
MultiPocoFactory.FlushCaches();
PocoData.FlushCaches();
}
/// <summary>
/// Read data to multiple pocos
/// </summary>
/// <typeparam name="TRet">The type of objects in the returned IEnumerable</typeparam>
/// <param name="index">Reader row to be read from the underlying IDataReader</param>
/// <param name="types">An array of Types representing the POCO types of the returned result set.</param>
/// <param name="cb">A callback function to connect the POCO instances, or null to automatically guess the relationships</param>
/// <returns>A collection of POCO's as an IEnumerable</returns>
private IEnumerable <TRet> MultiPocoFromIDataReader <TRet>(int index, Type[] types, object cb)
{
if (_reader == null)
{
throw new ObjectDisposedException(GetType().FullName, "The data reader has been disposed");
}
if (_consumed)
{
throw new InvalidOperationException(
"Query results must be consumed in the correct order, and each result can only be consumed once");
}
_consumed = true;
try
{
var cmd = _command;
var r = _reader;
var factory = MultiPocoFactory.GetFactory <TRet>(types, cmd.Connection.ConnectionString, cmd.CommandText, r, _defaultMapper);
if (cb == null)
{
cb = MultiPocoFactory.GetAutoMapper(types.ToArray());
}
bool bNeedTerminator = false;
while (true)
{
TRet poco;
try
{
if (!r.Read())
{
break;
}
poco = factory(r, cb);
}
catch (Exception x)
{
if (_db.OnException(x))
{
throw;
}
yield break;
}
if (poco != null)
{
yield return(poco);
}
else
{
bNeedTerminator = true;
}
}
if (bNeedTerminator)
{
var poco = (TRet)(cb as Delegate).DynamicInvoke(new object[types.Length]);
if (poco != null)
{
yield return(poco);
}
else
{
yield break;
}
}
}
finally
{
if (index == _gridIndex)
{
NextResult();
}
}
}
