void CRUCache::FetchNonInvolvedMVsMetadata()
{
DSListPosition tpos = tableList_.GetHeadPosition();
while (NULL != tpos)
{
CRUTbl *pTbl = tableList_.GetNext(tpos);
// Retrieve the table's private dependency list
CDDUIDTripleList &privTblList = pTbl->GetUIDsOfAllMVsUsingMe();
DSListPosition mvpos = privTblList.GetHeadPosition();
while (NULL != mvpos)
{
CDDUIDTriple &uidt = privTblList.GetNext(mvpos);
CRUMV *pMV = GetMV(uidt.objUID);
if (NULL == pMV)
{
// The MV is non-involved, fetch the DD object
CDDMV *pddMV = GetDDMVByUID(uidt);
// If the MV is not ON REQUEST, skip it
if (CDDObject::eON_REQUEST != pddMV->GetRefreshType())
{
continue;
}
pMV = FetchSingleNonInvolvedMV(pddMV);
}
if (FALSE == pMV->IsInvolved())
{
// If the MV is involved, the pointer exists already
pTbl->AddRefToUsingMV(pMV);
}
}
}
}
void CRUCache::FetchUsedObjectsMetadataForSingleMV(CRUMV *pMV)
{
CDDUIDTripleList &uList = pMV->GetAllUsedObjectsUIDs();
DSListPosition pos = uList.GetHeadPosition();
while (NULL != pos)
{
CDDUIDTriple& uidt = uList.GetNext(pos);
TInt64 objUid = uidt.objUID;
// Tables that are IGNORE CHANGES and UDFs do not interest us
// for the purpose of REFRESH
if (TRUE == pMV->IsIgnoreChanges(objUid) ||
TRUE == pMV->IsUsedObjectUDF(objUid))
{
continue;
}
// Fetch the pointer to the used table's wrapper object
// (create the wrapper if the table is referenced first)
CRUTbl *pTbl = GetTable(objUid);
if (NULL == pTbl)
{
pTbl = FetchSingleUsedObject(pMV, uidt);
}
// Add the pointer to the table to the MV's list of dependencies.
pMV->AddRefToUsedObject(pTbl);
// Add the pointer to the MV to the table's list of dependencies.
pTbl->AddRefToUsingMV(pMV);
// Register the used object for the DDL lock handling ...
SetupUsedObject(pTbl);
}
}
