internal override IExecuteResult Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, object[] parentArgs, object[] userArgs, ICompiledSubQuery[] subQueries, object lastResult)
{
IExecuteResult result3;
InitializeProviderMode();
DbConnection connection = conManager.UseConnection(this);
try
{
#if FREE
var count = GetTabesCount(connection);
Debug.Assert(count > 0);
if (count > Constants.LimitedTablesCount)
{
throw ALinq.SqlClient.Error.TablesLimited();
}
#endif
DbCommand cmd = connection.CreateCommand();
cmd.CommandText = queryInfo.CommandText;
cmd.Transaction = conManager.Transaction;
cmd.CommandTimeout = CommandTimeout;
cmd.CommandType = (queryInfo.Query is SqlStoredProcedureCall) ? CommandType.StoredProcedure : CommandType.Text;
AssignParameters(cmd, queryInfo.Parameters, userArgs, lastResult);
//if (queryInfo.Query is SqlStoredProcedureCall)
LogCommand(Log, cmd);
queryCount++;
switch (queryInfo.ResultShape)
{
case ResultShape.Singleton:
{
DbDataReader reader = CreateRereader(cmd.ExecuteReader());
IObjectReader reader2 = factory.Create(reader, true, this, parentArgs, userArgs, subQueries);
conManager.UseConnection(reader2.Session);
try
{
var objType = typeof(OneTimeEnumerable <>).MakeGenericType(new[] { queryInfo.ResultType });
var bf1 = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance;
var args = new object[] { reader2 };
var sequence =
(IEnumerable)Activator.CreateInstance(objType, bf1, null, args, null);
object obj2 = null;
var expression = query as MethodCallExpression;
MethodInfo info;
if ((expression != null) && ((expression.Method.DeclaringType == typeof(Queryable)) ||
(expression.Method.DeclaringType == typeof(Enumerable))))
{
string name = expression.Method.Name;
if (name != null)
{
if ((!(name == "First") && !(name == "FirstOrDefault")) &&
!(name == "SingleOrDefault"))
{
if (name == "Single")
{
}
}
else
{
info = TypeSystem.FindSequenceMethod(expression.Method.Name, sequence);
goto Label_01DE;
}
}
info = TypeSystem.FindSequenceMethod("Single", sequence);
}
else
{
info = TypeSystem.FindSequenceMethod("SingleOrDefault", sequence);
}
Label_01DE:
if (info != null)
{
try
{
obj2 = info.Invoke(null, new object[] { sequence });
}
catch (TargetInvocationException exception)
{
if (exception.InnerException != null)
{
throw exception.InnerException;
}
throw;
}
}
return(CreateExecuteResult(cmd, queryInfo.Parameters, reader2.Session, obj2));
}
finally
{
reader2.Dispose();
}
}
case ResultShape.Sequence:
break;
case ResultShape.MultipleResults:
{
DbDataReader reader5 = CreateRereader(cmd.ExecuteReader());
IObjectReaderSession user = readerCompiler.CreateSession(reader5, this, parentArgs,
userArgs, subQueries);
conManager.UseConnection(user);
MetaFunction function2 = GetFunction(query);
var executeResult = CreateExecuteResult(cmd, queryInfo.Parameters, user);
executeResult.ReturnValue = new MultipleResults(this, function2, user, executeResult);
return(executeResult);
}
default:
return(CreateExecuteResult(cmd, queryInfo.Parameters, null, cmd.ExecuteNonQuery(), true));
}
DbDataReader reader3 = CreateRereader(cmd.ExecuteReader());
IObjectReader reader4 = factory.Create(reader3, true, this, parentArgs, userArgs, subQueries);
conManager.UseConnection(reader4.Session);
var t = typeof(OneTimeEnumerable <>).MakeGenericType(new[] {
TypeSystem.GetElementType(queryInfo.ResultType)
});
var flags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance;
var objs = new object[] { reader4 };
var source = (IEnumerable)Activator.CreateInstance(t, flags, null, objs, null);
if (typeof(IQueryable).IsAssignableFrom(queryInfo.ResultType))
{
source = source.AsQueryable();
}
var result = CreateExecuteResult(cmd, queryInfo.Parameters, reader4.Session);
MetaFunction function = GetFunction(query);
if ((function != null) && !function.IsComposable)
{
t = typeof(SingleResult <>).MakeGenericType(new[] {
TypeSystem.GetElementType(queryInfo.ResultType)
});
flags = BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Instance;
objs = new object[] { source, result, services.Context };
source = (IEnumerable)Activator.CreateInstance(t, flags, null, objs, null);
}
result.ReturnValue = source;
result3 = result;
}
finally
{
conManager.ReleaseConnection(this);
}
return(result3);
}