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// file : odb/oracle/transaction-impl.cxx
// copyright : Copyright (c) 2009-2017 Code Synthesis Tools CC
// license : ODB NCUEL; see accompanying LICENSE file
#include <oci.h>
#include <cassert>
#include <odb/tracer.hxx>
#include <odb/oracle/database.hxx>
#include <odb/oracle/connection.hxx>
#include <odb/oracle/error.hxx>
#include <odb/oracle/exceptions.hxx>
#include <odb/oracle/transaction-impl.hxx>
namespace odb
{
namespace oracle
{
transaction_impl::
transaction_impl (database_type& db)
: odb::transaction_impl (db)
{
}
transaction_impl::
transaction_impl (connection_ptr c)
: odb::transaction_impl (c->database (), *c), connection_ (c)
{
}
transaction_impl::
~transaction_impl ()
{
}
void transaction_impl::
start ()
{
database_type& db (static_cast<database_type&> (database_));
if (connection_ == 0)
{
connection_ = db.connection ();
odb::transaction_impl::connection_ = connection_.get ();
}
OCISvcCtx* h (connection_->handle ());
OCIError* err (connection_->error_handle ());
// Allocate a transaction handle if there is none associated with
// the connection.
//
OCITrans* t (0);
sword s (OCIAttrGet (h,
OCI_HTYPE_SVCCTX,
reinterpret_cast<void*> (&t),
0,
OCI_ATTR_TRANS,
err));
if (s == OCI_ERROR || s == OCI_INVALID_HANDLE)
translate_error (err, s);
else if (t == 0)
{
auto_handle<OCITrans> auto_t;
s = OCIHandleAlloc (db.environment (),
reinterpret_cast<void**> (&t),
OCI_HTYPE_TRANS,
0,
0);
if (s != OCI_SUCCESS)
throw invalid_oci_handle ();
auto_t.reset (t);
s = OCIAttrSet (h,
OCI_HTYPE_SVCCTX,
reinterpret_cast<void*> (t),
0,
OCI_ATTR_TRANS,
err);
if (s == OCI_ERROR || s == OCI_INVALID_HANDLE)
translate_error (err, s);
auto_t.release ();
}
{
odb::tracer* t;
if ((t = connection_->tracer ()) || (t = database_.tracer ()))
t->execute (*connection_, "BEGIN");
}
// We never use OCITransDetach so the timeout parameter is
// of no consequence.
//
s = OCITransStart (h,
err,
0,
OCI_TRANS_NEW);
if (s == OCI_ERROR || s == OCI_INVALID_HANDLE)
translate_error (*connection_, s);
}
void transaction_impl::
commit ()
{
// Invalidate query results.
//
connection_->invalidate_results ();
{
odb::tracer* t;
if ((t = connection_->tracer ()) || (t = database_.tracer ()))
t->execute (*connection_, "COMMIT");
}
sword s (OCITransCommit (connection_->handle (),
connection_->error_handle (),
OCI_DEFAULT));
if (s == OCI_ERROR || s == OCI_INVALID_HANDLE)
translate_error (*connection_, s);
// Release the connection.
//
connection_.reset ();
}
void transaction_impl::
rollback ()
{
// Invalidate query results.
//
connection_->invalidate_results ();
{
odb::tracer* t;
if ((t = connection_->tracer ()) || (t = database_.tracer ()))
t->execute (*connection_, "ROLLBACK");
}
sword s (OCITransRollback (connection_->handle (),
connection_->error_handle (),
OCI_DEFAULT));
if (s == OCI_ERROR || s == OCI_INVALID_HANDLE)
translate_error (*connection_, s);
// Release the connection.
//
connection_.reset ();
}
}
}
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