public long GetObjectPositionWithOid(OID oid, bool useCache)
{
return(_objectReader.GetObjectPositionFromItsOid(oid, useCache, true));
}
/// <summary>
/// Execute query using index
/// </summary>
/// <param name="index"> </param>
/// <param name="inMemory"> </param>
/// <param name="returnObjects"> </param>
/// <param name="queryResultAction"> </param>
private IInternalObjectSet <T> ExecuteUsingIndex <T>(ClassInfoIndex index, bool inMemory,
bool returnObjects, IMatchingObjectAction queryResultAction)
{
// Index that have not been used yet do not have persister!
if (index.BTree.GetPersister() == null)
{
index.BTree.SetPersister(new LazyOdbBtreePersister(StorageEngine));
}
var nbObjects = ClassInfo.NumberOfObjects;
var btreeSize = index.BTree.GetSize();
// the two values should be equal
if (nbObjects != btreeSize)
{
var classInfo = StorageEngine.GetSession().GetMetaModel().GetClassInfoFromId(index.ClassInfoId);
throw new OdbRuntimeException(
NDatabaseError.IndexIsCorrupted.AddParameter(index.Name).AddParameter(classInfo.FullClassName).
AddParameter(nbObjects).AddParameter(btreeSize));
}
if (OdbConfiguration.IsLoggingEnabled())
{
DLogger.Debug(string.Format("GenericQueryExecutor: loading {0} instance(s) of {1}", nbObjects, ClassInfo.FullClassName));
}
if (ExecuteStartAndEndOfQueryAction())
{
queryResultAction.Start();
}
PrepareQuery();
if (Query != null)
{
_queryHasOrderBy = Query.HasOrderBy();
}
var tree = index.BTree;
var isUnique = index.IsUnique;
// Iterator iterator = new BTreeIterator(tree,
// OrderByConstants.ORDER_BY_ASC);
var key = ComputeIndexKey(index);
IList list = null;
// If index is unique, get the object
if (isUnique)
{
var treeSingle = (IBTreeSingleValuePerKey)tree;
var value = treeSingle.Search(key);
if (value != null)
{
list = new List <object> {
value
}
}
;
}
else
{
var treeMultiple = (IBTreeMultipleValuesPerKey)tree;
list = treeMultiple.Search(key);
}
if (list != null)
{
foreach (OID oid in list)
{
// FIXME Why calling this method
ObjectReader.GetObjectPositionFromItsOid(oid, true, true);
_orderByKey = null;
var objectMatches = MatchObjectWithOid(oid, returnObjects, inMemory);
if (objectMatches)
{
queryResultAction.ObjectMatch(oid, GetCurrentObjectMetaRepresentation(), _orderByKey);
}
}
queryResultAction.End();
return(queryResultAction.GetObjects <T>());
}
if (ExecuteStartAndEndOfQueryAction())
{
queryResultAction.End();
}
return(queryResultAction.GetObjects <T>());
}