void CRUTableSyncTaskExecutor::Init()
{
inherited::Init();
CRUTableSyncTask *pParentTask = (CRUTableSyncTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
CRUTbl &tbl = pParentTask->GetTable();
if (FALSE == tbl.IsIncEpochNeeded())
{
ResetHasWork();
return;
}
tableName_ = tbl.GetFullName();
// Decides whether the table needs a long lock,and set the table attribute
// prepare the sql text and update the ddol cache object
PrepareCatApi();
SetState(EX_INC_EPOCH);
}
void CRUTableSyncTaskExecutor::Epilogue()
{
CRUTableSyncTask *pParentTask = (CRUTableSyncTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
CRUTbl &tbl = pParentTask->GetTable();
if (TRUE == tbl.IsIncEpochNeeded())
{
if (TRUE == tbl.IsLongLockNeeded())
{
BeginTransaction();
tbl.ExecuteReadProtectedOpen();
CommitTransaction();
}
if (TRUE == tbl.IsLogRPOpenPending())
{
// The above condition is false only in case of
// a non involved incremental mv.We do not need to lock the logs
// because we rely on the ddl locks
tbl.ReleaseLogReadProtectedOpen();
}
}
SetState(EX_COMPLETE);
}
void CRUEmpCheckTaskExecutor::Init()
{
inherited::Init();
CRUEmpCheckTask *pParentTask = (CRUEmpCheckTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
CRUTbl &tbl = pParentTask->GetTable();
pEmpCheck_ = new CRUEmpCheck(tbl.GetEmpCheckVector());
// We are interested only in the the records that are logged
// BEFORE the epoch increment, so we place an upper bound
TInt32 upperBound;
if (TRUE == tbl.IsInvolvedMV())
{
// The check happens before the epoch increment
upperBound = tbl.GetCurrentEpoch();
}
else
{
// The check happens after the epoch increment
upperBound = tbl.GetCurrentEpoch()-1;
}
pEmpCheck_->ComposeSQL(tbl, upperBound);
SetState(EX_CHECK);
}
//--------------------------------------------------------------------------//
// CRULockEquivSetTaskExecutor::SetTimestampToAllTbls()
//--------------------------------------------------------------------------//
void CRULockEquivSetTaskExecutor::SetTimestampToAllTbls(TInt64 ts)
{
CRULockEquivSetTask *pParentTask = (CRULockEquivSetTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
CRUTblList &tblList = pParentTask->GetTableList();
DSListPosition pos = tblList.GetHeadPosition();
while (NULL != pos)
{
CRUTbl *pTbl = tblList.GetNext(pos);
pTbl->SetTimestamp(ts);
}
}
void CRUTableSyncTaskExecutor::PrepareCatApi()
{
CRUTableSyncTask *pParentTask = (CRUTableSyncTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
CRUTbl &tbl = pParentTask->GetTable();
tbl.IncrementCurrentEpoch(FALSE);
CDSString catApiText = tbl.GetIncEpochCatApiText();
syncTableDynamicContainer_.SetStatementText
(INC_EPOCH,catApiText);
}
void CRULockEquivSetTaskExecutor::Work()
{
CRULockEquivSetTask *pParentTask = (CRULockEquivSetTask *)GetParentTask();
RUASSERT(NULL != pParentTask);
TESTPOINT(CRUGlobals::TESTPOINT173);
// We open transaction here because we might do an Invalidate opens
// sql statement and also we need to make get current time sql statement
// that requires a transaction
BeginTransaction();
FreezeAllTables(pParentTask);
SetTimestampToAllTbls(CRUGlobals::GetCurrentTimestamp());
CommitTransaction();
TESTPOINT(CRUGlobals::TESTPOINT174);
SetState(EX_COMPLETE);
}
