void CRUTbl::CheckIfLongLockNeeded()
{
if (TRUE == IsLongLockNeeded())
{
// Someone else (the equivalence set analyzer)
// has already set the flag.
return;
}
CDDObject::ERangeLogType rlType = GetRangeLogType();
if (CDDObject::eAUTOMATIC == rlType // Case #1
||
CDDObject::eMIXED == rlType)
{
SetLongLockIsNeeded();
return;
}
DSListPosition pos = pOnRequestInvolvedMVsUsingMe_->GetHeadPosition();
while (NULL != pos)
{
CRUMV *pMV = pOnRequestInvolvedMVsUsingMe_->GetNext(pos);
if (FALSE == pMV->IsSelfMaintainable() // Case #2
||
TRUE == pMV->WillBeRecomputed() // Case #3
)
{
SetLongLockIsNeeded();
return;
}
}
}
void CRUTbl::BuildEmpCheckVector()
{
// Verify that the vector is non-initialized
RUASSERT(FALSE == pEmpCheckVector_->IsValid());
// CRUEmpCheckTask is created only if there is
// at least one incrementally refreshed MV.
RUASSERT(FALSE == pIncInvolvedMVsUsingMe_->IsEmpty());
TInt64 tblUid = GetUID();
DSListPosition lpos = pIncInvolvedMVsUsingMe_->GetHeadPosition();
while (NULL != lpos)
{
CRUMV *pMV = pIncInvolvedMVsUsingMe_->GetNext(lpos);
RUASSERT (TRUE == pMV->IsInvolved()
&&
FALSE == pMV->WillBeRecomputed());
// Register the epoch in the vector ...
pEmpCheckVector_->AddEpochForCheck(pMV->GetEpoch(tblUid));
}
pEmpCheckVector_->Build();
}
void CRUTbl::BuildListOfIncrementalInvolvedMVsUsingMe()
{
// Verify that the list is not initialized already
RUASSERT(TRUE == pIncInvolvedMVsUsingMe_->IsEmpty());
DSListPosition pos = pOnRequestInvolvedMVsUsingMe_->GetHeadPosition();
while (NULL != pos)
{
CRUMV *pMV = pOnRequestInvolvedMVsUsingMe_->GetNext(pos);
RUASSERT(CDDObject::eON_REQUEST == pMV->GetRefreshType()
&&
TRUE == pMV->IsInvolved()
);
if (TRUE == pMV->WillBeRecomputed())
{
continue;
}
pIncInvolvedMVsUsingMe_->AddTail(pMV);
CDDObject::EMVQueryType qt = pMV->GetQueryType();
if (CDDObject::eMJV == qt
||
CDDObject::eOTHER == qt // Is this MJV on single table?
)
{
isUsedByIncrementalMJV_ = TRUE;
}
}
}
