CommitTransaction
CommitTransaction executes the transaction log file, releasing all object locks if releaseObjectLocks is true else the current transaction will retain all the objects lock making CommitTransaction funtion like a save point.unsigned __int64 CommitTransaction( bool releaseObjectLocks = true );
Parameters
| releaseObjectLocks | if this is set to false, this method acts as a save point, committing all adds, edits and deletes, but not releasing any object locks. |
Return Values
If the method succeeds, the return value is zero else see error codes for more details.Remarks
- If this method is not called before EndTransaction or CloseDatabase, then the transaction is aborted.
- Then releaseObjectLocks is set true, the object within the table handles are removes so any call to ReadObject or DeleteObject using CODBPP::NEXT or CODBPP::PREVIOUS will fail.
Example Use
- C++
#include "ODBPP.h"
int wmain(int argc, wchar_t* argv[])
{
unsigned __int64 error;
const char16_t *message;
CODBPP database;
CODBPP::Object object;
struct FixedObject{
int First;
double Second;
} *fixedObject;
unsigned int tableID = 1;
if((error = database.BeginTransaction()) == NO_ERROR
&& (error = database.OpenTable(tableID)) == NO_ERROR
&& (error = database.NewObject(tableID,&object)) == NO_ERROR){
fixedObject = (struct FixedObject*)object.fixed;
fixedObject->First = 456;
fixedObject->Second = 456.789;
if((error = database.AddObject(tableID)) == NO_ERROR){
error = database.CommitTransaction();
}
if(error && database.GetErrorMessage(&message) == NO_ERROR)
MessageBox(message);
database.EndTransaction();
return NO_ERROR;
}Also See
AbortTransaction, BeginTransaction, EndTransactionListen All
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