//*****************************************************************************
// Apply a delta record to a table, generically.
//*****************************************************************************
__checkReturn
HRESULT
CMiniMdRW::ApplyTableDelta(
CMiniMdRW &mdDelta, // Interface to MD with the ENC delta.
ULONG ixTbl, // Table index to update.
RID iRid, // RID of the changed item.
int fc) // Function code of update.
{
HRESULT hr = S_OK;
void *pRec; // Record in existing MetaData.
void *pDeltaRec; // Record if Delta MetaData.
RID newRid; // Rid of new record.
// Get the delta record.
IfFailGo(mdDelta.GetDeltaRecord(ixTbl, iRid, &pDeltaRec));
// Get the record from the base metadata.
if (iRid > m_Schema.m_cRecs[ixTbl])
{ // Added record. Each addition is the next one.
_ASSERTE(iRid == m_Schema.m_cRecs[ixTbl] + 1);
switch (ixTbl)
{
case TBL_TypeDef:
IfFailGo(AddTypeDefRecord(reinterpret_cast<TypeDefRec **>(&pRec), &newRid));
break;
case TBL_Method:
IfFailGo(AddMethodRecord(reinterpret_cast<MethodRec **>(&pRec), &newRid));
break;
case TBL_EventMap:
IfFailGo(AddEventMapRecord(reinterpret_cast<EventMapRec **>(&pRec), &newRid));
break;
case TBL_PropertyMap:
IfFailGo(AddPropertyMapRecord(reinterpret_cast<PropertyMapRec **>(&pRec), &newRid));
break;
default:
IfFailGo(AddRecord(ixTbl, &pRec, &newRid));
break;
}
IfNullGo(pRec);
_ASSERTE(iRid == newRid);
}
else
{ // Updated record.
IfFailGo(getRow(ixTbl, iRid, &pRec));
}
// Copy the record info.
IfFailGo(ApplyRecordDelta(mdDelta, ixTbl, pDeltaRec, pRec));
ErrExit:
return hr;
} // CMiniMdRW::ApplyTableDelta
