public override void BeginTransaction(CLI.IsolationLevel level)
{
CLI.ReturnCode rc = (CLI.ReturnCode)CLI.SQLSetConnectAttr(
hdbc,
(int)CLI.ConnectionAttribute.SQL_ATTR_AUTOCOMMIT,
(IntPtr)(int)CLI.AutoCommit.SQL_AUTOCOMMIT_OFF,
(int)CLI.LengthCode.SQL_IS_UINTEGER);
if (rc != CLI.ReturnCode.SQL_SUCCESS)
{
HandleConnectionErrors(rc);
}
rc = (CLI.ReturnCode)CLI.SQLSetConnectAttr(
hdbc,
(int)CLI.ConnectionAttribute.SQL_ATTR_TXN_ISOLATION,
(IntPtr)(int)level,
(int)CLI.LengthCode.SQL_IS_UINTEGER);
if (rc != CLI.ReturnCode.SQL_SUCCESS)
{
if (rc == CLI.ReturnCode.SQL_SUCCESS_WITH_INFO)
{
Diagnostics.HandleWarnings(this, OuterConnection);
}
else
{
try
{
Diagnostics.HandleErrors(rc, CLI.HandleType.SQL_HANDLE_DBC, hdbc);
}
finally
{
CLI.SQLSetConnectAttr(
hdbc,
(int)CLI.ConnectionAttribute.SQL_ATTR_AUTOCOMMIT,
(IntPtr)(int)CLI.AutoCommit.SQL_AUTOCOMMIT_ON,
(int)CLI.LengthCode.SQL_IS_UINTEGER);
}
}
}
GC.KeepAlive(this);
}
public override void EndTransaction(bool commit)
{
Debug.WriteLineIf(CLI.FnTrace.Enabled, String.Format(
"ManagedConnection.EndTransaction ({0})", commit));
CLI.CompletionType completion = commit ?
CLI.CompletionType.SQL_COMMIT :
CLI.CompletionType.SQL_ROLLBACK;
Future future = new Future(
Service.Transaction, (int)completion, null);
object result = null;
try
{
futures.Add(future);
future.SendRequest(Session);
result = future.GetNextResult(Session, futures);
Debug.WriteLineIf(CLI.FnTrace.Enabled, String.Format(
"ManagedConnection.EndTransaction ({0}) success", commit));
}
finally
{
futures.Remove(future);
}
if (result is object[])
{
Debug.WriteLineIf(CLI.FnTrace.Enabled, String.Format(
"ManagedConnection.EndTransaction ({0}) error", commit));
object[] results = (object[])result;
errors.AddServerError((string)results[1], null, (string)results[2]);
Diagnostics.HandleErrors(CLI.ReturnCode.SQL_ERROR, this);
}
autocommit = true;
isolation = CLI.IsolationLevel.SQL_TXN_READ_COMMITED;
Debug.WriteLineIf(CLI.FnTrace.Enabled, String.Format(
"ManagedConnection.EndTransaction ({0}) done", commit));
}
public override void BeginTransaction(CLI.IsolationLevel level)
{
autocommit = false;
isolation = level;
}
public abstract void BeginTransaction(CLI.IsolationLevel level);
public override void EndTransaction (bool commit)
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, String.Format (
"ManagedConnection.EndTransaction ({0})", commit));
CLI.CompletionType completion = commit ?
CLI.CompletionType.SQL_COMMIT :
CLI.CompletionType.SQL_ROLLBACK;
Future future = new Future (
Service.Transaction, (int) completion, null);
object result = null;
try
{
futures.Add (future);
future.SendRequest (Session);
result = future.GetNextResult (Session, futures);
Debug.WriteLineIf (CLI.FnTrace.Enabled, String.Format (
"ManagedConnection.EndTransaction ({0}) success", commit));
}
finally
{
futures.Remove (future);
}
if (result is object[])
{
Debug.WriteLineIf (CLI.FnTrace.Enabled, String.Format (
"ManagedConnection.EndTransaction ({0}) error", commit));
object[] results = (object[]) result;
errors.AddServerError ((string) results[1], null, (string) results[2]);
Diagnostics.HandleErrors (CLI.ReturnCode.SQL_ERROR, this);
}
autocommit = true;
isolation = CLI.IsolationLevel.SQL_TXN_READ_COMMITED;
Debug.WriteLineIf (CLI.FnTrace.Enabled, String.Format (
"ManagedConnection.EndTransaction ({0}) done", commit));
}
public override void BeginTransaction (CLI.IsolationLevel level)
{
autocommit = false;
isolation = level;
}
