public long GetKeyValueCount()
{
if (_prefixKeyCount >= 0)
{
return(_prefixKeyCount);
}
if (_prefix.Length == 0)
{
_prefixKeyCount = ArtRoot.GetCount();
return(_prefixKeyCount);
}
CalcPrefixKeyStart();
if (_prefixKeyStart < 0)
{
_prefixKeyCount = 0;
return(0);
}
if (_cursor2 == null)
{
_cursor2 = ArtRoot.CreateCursor();
}
_cursor2.FindLast(_prefix);
_prefixKeyCount = _cursor2.CalcIndex() - _prefixKeyStart + 1;
return(_prefixKeyCount);
}
public BTreeKeyValueDBTransaction(BTreeKeyValueDB keyValueDB, IRootNode root, bool writing, bool readOnly)
{
_preapprovedWriting = writing;
_readOnly = readOnly;
_keyValueDB = keyValueDB;
_keyIndex = -1;
_cursor = root.CreateCursor();
_cursor2 = null;
BTreeRoot = root;
_cursorMovedCounter = 0;
}
public BTreeKeyValueDBTransaction(BTreeKeyValueDB keyValueDB, IRootNode artRoot, bool writing, bool readOnly)
{
_preapprovedWriting = writing;
_readOnly = readOnly;
_keyValueDB = keyValueDB;
_prefix = Array.Empty <byte>();
_prefixKeyStart = 0;
_prefixKeyCount = -1;
_keyIndex = -1;
_cursor = artRoot.CreateCursor();
_cursor2 = null;
BTreeRoot = artRoot;
}
public ArtInMemoryKeyValueDBTransaction(ArtInMemoryKeyValueDB keyValueDB, IRootNode artRoot, bool writting, bool readOnly)
{
_preapprovedWritting = writting;
_readOnly = readOnly;
_keyValueDB = keyValueDB;
_prefix = BitArrayManipulation.EmptyByteArray;
_prefixKeyStart = 0;
_prefixKeyCount = -1;
_keyIndex = -1;
_cursor = artRoot.CreateCursor();
_cursor2 = null;
ArtRoot = artRoot;
}
public CursorTestsBase()
{
_allocator = new LeakDetectorWrapperAllocator(new HGlobalAllocator());
_root = ARTImpl.CreateEmptyRoot(_allocator, Is12);
_cursor = _root.CreateCursor();
}
public CursorTestsBase()
{
_allocator = new LeakDetectorWrapperAllocator(new HGlobalAllocator());
_root = Is12 ? BTreeImpl12.CreateEmptyRoot(_allocator) : null /*ARTImplV.CreateEmptyRoot(_allocator)*/;
_cursor = _root.CreateCursor();
}