public object LoadObject()
{
var typeId = _reader.ReadVUInt32();
if (typeId == 0)
{
return(null);
}
if (typeId == 1)
{
var backRefId = _reader.ReadVUInt32();
return(_visited[(int)backRefId]);
}
if (typeId >= _id2Info.Count)
{
throw new BtdbMissingMetadataException();
}
var infoForType = _id2Info[(int)typeId];
if (infoForType.Loader == null)
{
infoForType.Loader = LoaderFactory(infoForType.Descriptor);
}
return(infoForType.Loader(_reader, this, infoForType.Descriptor));
}
bool Process(BlockType blockType, ByteBuffer block, IEventStoreObserver observer)
{
if ((blockType & BlockType.Compressed) != 0)
{
CompressionStrategy.Decompress(ref block);
}
var reader = new ByteBufferReader(block);
if ((blockType & BlockType.HasTypeDeclaration) != 0)
{
Mapping.LoadTypeDescriptors(reader);
}
var metadata = (blockType & BlockType.HasMetadata) != 0 ? Mapping.LoadObject(reader) : null;
uint eventCount;
if ((blockType & BlockType.HasOneEvent) != 0)
{
eventCount = 1;
}
else if ((blockType & BlockType.HasMoreEvents) != 0)
{
eventCount = reader.ReadVUInt32();
}
else
{
eventCount = 0;
}
var readEvents = observer.ObservedMetadata(metadata, eventCount);
if (!readEvents)
{
return(observer.ShouldStopReadingNextEvents());
}
var events = new object[eventCount];
var successfulEventCount = 0;
for (var i = 0; i < eventCount; i++)
{
var ev = Mapping.LoadObject(reader);
if (ev == null)
{
continue;
}
events[successfulEventCount] = ev;
successfulEventCount++;
}
if (eventCount != successfulEventCount)
{
Array.Resize(ref events, successfulEventCount);
}
observer.ObservedEvents(events);
return(observer.ShouldStopReadingNextEvents());
}
ByteBuffer WriteSecondaryKeyKey(uint secondaryKeyIndex, ByteBuffer keyBytes, ByteBuffer valueBytes)
{
var keyWriter = new ByteBufferWriter();
keyWriter.WriteVUInt32(_relationInfo.Id);
keyWriter.WriteVUInt32(secondaryKeyIndex);
var valueReader = new ByteBufferReader(valueBytes);
var version = valueReader.ReadVUInt32();
var keySaver = _relationInfo.GetPKValToSKMerger(version, secondaryKeyIndex);
keySaver(_transaction, keyWriter, new ByteBufferReader(keyBytes), new ByteBufferReader(valueBytes), _relationInfo.DefaultClientObject);
return(keyWriter.Data);
}
public object CreateInstance(IInternalObjectDBTransaction tr, ByteBuffer keyBytes, ByteBuffer valueBytes,
bool keyContainsRelationIndex = true)
{
var obj = Creator(tr);
var keyReader = new ByteBufferReader(keyBytes);
if (keyContainsRelationIndex)
{
keyReader.SkipVUInt32(); //index Relation
}
GetPrimaryKeysLoader(ClientTypeVersion)(tr, keyReader, obj);
var valueReader = new ByteBufferReader(valueBytes);
var version = valueReader.ReadVUInt32();
GetValueLoader(version)(tr, valueReader, obj);
return(obj);
}
