public CriteriaQueryExecutionPlan(ClassInfo classInfo, SodaQuery query)
{
_classInfo = classInfo;
_query = query;
((IInternalQuery) _query).SetExecutionPlan(this);
Init();
}
public override void DefragmentTo(string newFileName)
{
var start = OdbTime.GetCurrentTimeInMs();
var totalNbObjects = 0L;
var newStorageEngine = new StorageEngine(new FileIdentification(newFileName));
var j = 0;
var criteriaQuery = new SodaQuery(typeof(object));
var defragObjects = GetObjects <object>(criteriaQuery, true, -1, -1);
foreach (var defragObject in defragObjects)
{
newStorageEngine.Store(defragObject);
totalNbObjects++;
if (j % 10000 == 0)
{
Log4NetHelper.Instance.LogInfoMessage(string.Concat("\nStorageEngine: ", totalNbObjects.ToString(), " objects saved."));
}
j++;
}
newStorageEngine.Close();
var time = OdbTime.GetCurrentTimeInMs() - start;
var nbObjectsAsString = totalNbObjects.ToString();
var timeAsString = time.ToString();
Log4NetHelper.Instance.LogInfoMessage(string.Format("StorageEngine: New storage {0} created with {1} objects in {2} ms.", newFileName,
nbObjectsAsString, timeAsString));
}
public IQuery Query <T>()
{
var criteriaQuery = new SodaQuery(typeof(T));
((IInternalQuery)criteriaQuery).SetQueryEngine(_storageEngine);
return(criteriaQuery);
}
public void AddIndexOn(string className, string indexName, string[] indexFields,
bool acceptMultipleValuesForSameKey)
{
var classInfo = GetMetaModel().GetClassInfo(className, true);
if (classInfo.HasIndex(indexName))
{
throw new OdbRuntimeException(
NDatabaseError.IndexAlreadyExist.AddParameter(indexName).AddParameter(className));
}
var classInfoIndex = classInfo.AddIndexOn(indexName, indexFields, acceptMultipleValuesForSameKey);
IBTree btree;
var lazyOdbBtreePersister = new LazyOdbBtreePersister(this);
if (acceptMultipleValuesForSameKey)
{
btree = new OdbBtreeMultiple(OdbConfiguration.GetIndexBTreeDegree(), lazyOdbBtreePersister);
}
else
{
btree = new OdbBtreeSingle(OdbConfiguration.GetIndexBTreeDegree(), lazyOdbBtreePersister);
}
classInfoIndex.BTree = btree;
Store(classInfoIndex);
// Now The index must be updated with all existing objects.
if (classInfo.NumberOfObjects == 0)
{
// There are no objects. Nothing to do
return;
}
var numberOfObjectsAsString = classInfo.NumberOfObjects.ToString();
Log4NetHelper.Instance.LogInfoMessage(
string.Format(
"StorageEngine: Creating index {0} on class {1} - Class has already {2} Objects. Updating index",
indexName, className, numberOfObjectsAsString));
Log4NetHelper.Instance.LogInfoMessage(string.Format("StorageEngine: {0} : loading {1} objects from database", indexName,
numberOfObjectsAsString));
// We must load all objects and insert them in the index!
var criteriaQuery = new SodaQuery(classInfo.UnderlyingType);
var objects = GetObjectInfos(criteriaQuery);
numberOfObjectsAsString = classInfo.NumberOfObjects.ToString();
Log4NetHelper.Instance.LogInfoMessage(string.Format("StorageEngine: {0} : {1} objects loaded", indexName, numberOfObjectsAsString));
while (objects.HasNext())
{
var nnoi = (NonNativeObjectInfo)objects.Next();
var odbComparable = IndexTool.BuildIndexKey(classInfoIndex.Name, nnoi, classInfoIndex.AttributeIds);
btree.Insert(odbComparable, nnoi.GetOid());
}
Log4NetHelper.Instance.LogInfoMessage(string.Format("StorageEngine: {0} created!", indexName));
}
protected override void PrepareQuery()
{
_sodaQuery = Query;
((IInternalQuery)_sodaQuery).SetQueryEngine(StorageEngine);
_involvedFields = _sodaQuery.GetAllInvolvedFields();
}
public ValuesCriteriaQueryExecutor(IQuery query, IStorageEngine engine) : base(query, engine)
{
_sodaQuery = (SodaQuery)query;
}
protected override void PrepareQuery()
{
_sodaQuery = Query;
((IInternalQuery) _sodaQuery).SetQueryEngine(StorageEngine);
_involvedFields = _sodaQuery.GetAllInvolvedFields();
}
public ValuesCriteriaQueryExecutor(IQuery query, IStorageEngine engine) : base(query, engine)
{
_sodaQuery = (SodaQuery) query;
}
