CRUTbl *CRUCache::FetchSingleUsedObject(CRUMV *pUsingMV,
const CDDUIDTriple &uidt)
{
CRUTbl *pTbl;
BOOL isMV = pUsingMV->IsUsedObjectAnMV(uidt.objUID);
if (FALSE == isMV)
{
CDDTable *pddTable = GetDDTableByUID(uidt);
pTbl = new CRURegularTbl(pddTable);
}
else
{
CDDMV *pddMV = GetDDMVByUID(uidt);
pTbl = new CRUMVTbl(pddMV);
// Read the REFRESH-specific metadata
pddMV->FetchMVRefreshMetadata();
// A table based on MV will always inherit the MV's timestamp
pTbl->SetTimestamp(pddMV->GetRefreshedAtTimestamp());
// Inherit the MV's feature.
// If a table is NOT an involved MV, take care not to remove
// its dangling DDL lock (if any) accidentally.
pTbl->SetReleaseDDLLock(pddMV->CanCancelDDLLock());
}
pTbl->SetInvolved();
tableList_.AddTail(pTbl);
return pTbl;
}
void CRURefreshTaskExecutor::IncrementTopMvCurrentEpoch()
{
CRUMV &mv = GetRefreshTask()->GetTopMV();
if (TRUE == mv.IsInvolvedTbl())
{
CRUTbl *pTbl = mv.GetTblInterface();
pTbl->IncrementCurrentEpoch(TRUE /* through DDOL */);
pTbl->SaveMetadata();
pTbl->SetTimestamp(mv.GetTimestamp());
}
}
//--------------------------------------------------------------------------//
// 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);
}
}