private int CopyDependentSlot(IDefragmentContext context, int sourceId)
{
try
{
ByteArrayBuffer sourceBuffer = context.SourceBufferById(sourceId);
Slot targetPayloadSlot = context.AllocateTargetSlot(sourceBuffer.Length());
int targetId = context.Services().TargetNewId();
context.Services().MapIDs(sourceId, targetId, false);
context.Services().Mapping().MapId(targetId, targetPayloadSlot);
DefragmentContextImpl payloadContext = new DefragmentContextImpl(sourceBuffer, (DefragmentContextImpl
)context);
int clazzId = payloadContext.CopyIDReturnOriginalID();
ITypeHandler4 payloadHandler = payloadContext.TypeHandlerForId(clazzId);
ITypeHandler4 versionedPayloadHandler = HandlerRegistry.CorrectHandlerVersion(payloadContext
, payloadHandler);
versionedPayloadHandler.Defragment(payloadContext);
payloadContext.WriteToTarget(targetPayloadSlot.Address());
return targetId;
}
catch (IOException ioexc)
{
throw new Db4oIOException(ioexc);
}
}
public static void Defragment(IDefragmentContext context, ArrayHandler handler)
{
int sourceAddress = context.SourceBuffer().ReadInt();
int length = context.SourceBuffer().ReadInt();
if (sourceAddress == 0 && length == 0)
{
context.TargetBuffer().WriteInt(0);
context.TargetBuffer().WriteInt(0);
return;
}
Slot slot = context.AllocateMappedTargetSlot(sourceAddress, length);
ByteArrayBuffer sourceBuffer = null;
try
{
sourceBuffer = context.SourceBufferByAddress(sourceAddress, length);
}
catch (IOException exc)
{
throw new Db4oIOException(exc);
}
DefragmentContextImpl payloadContext = new DefragmentContextImpl(sourceBuffer, (DefragmentContextImpl
)context);
handler.DefragmentSlot(payloadContext);
payloadContext.WriteToTarget(slot.Address());
context.TargetBuffer().WriteInt(slot.Address());
context.TargetBuffer().WriteInt(length);
}
