public virtual void Test4Sort()
{
var baseName = GetBaseName();
SetUp(baseName);
var d = OdbConfiguration.GetIndexBTreeDegree();
try
{
OdbConfiguration.SetIndexBTreeDegree(40);
var odb = Open(baseName);
var aq =
odb.Query <VO.Login.Function>();
(aq.Descend("name").Constrain("function 2").Equal()).Or(
aq.Descend("name").Constrain("function 3").Equal()).Not();
aq.Descend("name").OrderDescending();
var l = aq.Execute <VO.Login.Function>(true, -1, -1);
odb.Close();
AssertEquals(48, l.Count);
var f = l.GetFirst();
AssertEquals("function 9", f.GetName());
}
finally
{
OdbConfiguration.SetIndexBTreeDegree(d);
}
}
public void Check_changing_btree_degree()
{
Assert.That(OdbConfiguration.GetIndexBTreeDegree(), Is.EqualTo(OdbConfiguration.DefaultIndexBTreeDegree));
const int newIndexBTreeSize = 30;
OdbConfiguration.SetIndexBTreeDegree(newIndexBTreeSize);
Assert.That(OdbConfiguration.GetIndexBTreeDegree(), Is.EqualTo(newIndexBTreeSize));
}
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 AbstractBTreeCollection(OrderByConstants orderByType)
{
// TODO compute degree best value for the size value
_tree = BuildTree(OdbConfiguration.GetIndexBTreeDegree());
_orderByType = orderByType;
}
