private void RegisterCommandExecutionHandler(CommandExecutionHandler handler)
{
if (handler.IsProcedureHandler())
{
string commandText = (string)handler.RetrieveCommandText();
handlers_key.Add(commandText, handler);
}
else
{
this.handlers_text.Add(handler);
}
}
internal static Func <DataSet, DbCommand, DbDataReader> TryRead(CommandExecutionHandler handlerRegistry, DbCommand cmd)
{
HandlerReadDesc handler;
if (!s_map_CommandText_Read_Method.TryGetValue(cmd.CommandText, out handler))
{
// not yet cached
IComparable handlerCommandText = handlerRegistry.RetrieveCommandText();// GetCommandTextImpl(tAccessor, handlerMethodName);
string handlerCommandTextX = handlerCommandText as string;
bool isOk;
if (handlerCommandTextX == null)
{
isOk = handlerCommandText.CompareTo(cmd) == 0;
}
else
{
isOk = string.Equals(cmd.CommandText, handlerCommandTextX, StringComparison.Ordinal);
}
if (isOk)
{
Func <DataSet, DbCommand, DbDataReader> handlerMethod = handlerRegistry.DoCompileReadMethod();
//handlerRegistry.SetCompiledReadMethod(handlerMethod);
handler = new HandlerReadDesc(handlerRegistry.RetrieveHandlerMethodName(), handlerMethod);
s_map_CommandText_Read_Method.Add(cmd.CommandText, handler);
}
else
{
handler = null;
}
}
else
{
// registered
}
if (handler != null && handler.MethodName == handlerRegistry.RetrieveHandlerMethodName())
{
return(handler.HandlerMethod);
}
return(null);
}