TableVersionInfo ITableInfoResolver.LoadTableVersionInfo(uint id, uint version, string tableName)
{
using (var tr = _keyValueDB.StartTransaction())
{
tr.SetKeyPrefix(TableVersionsPrefix);
var key = TableInfo.BuildKeyForTableVersions(id, version);
if (!tr.FindExactKey(key))
{
throw new BTDBException($"Missing TableVersionInfo Id:{id} Version:{version}");
}
return(TableVersionInfo.Load(new KeyValueDBValueReader(tr), _objectDB.FieldHandlerFactory, tableName));
}
}
uint ITableInfoResolver.GetLastPersistedVersion(uint id)
{
using (var tr = _keyValueDB.StartTransaction())
{
tr.SetKeyPrefix(TableVersionsPrefix);
var key = TableInfo.BuildKeyForTableVersions(id, uint.MaxValue);
if (tr.Find(ByteBuffer.NewSync(key)) == FindResult.NotFound)
{
return(0);
}
var key2 = tr.GetKeyAsByteArray();
var ofs = PackUnpack.LengthVUInt(id);
if (key2.Length < ofs)
{
return(0);
}
if (BitArrayManipulation.CompareByteArray(key, ofs, key2, ofs) != 0)
{
return(0);
}
return(checked ((uint)PackUnpack.UnpackVUInt(key2, ref ofs)));
}
}