protected override void ProcessAspect(ClassAspect aspect, int currentSlot, bool isNull
)
{
if (aspect is FieldMetadata)
{
var field = (FieldMetadata)aspect;
if (isNull)
{
field.AddIndexEntry(context.Transaction(), context.ObjectId(), null);
}
else
{
field.AddFieldIndex(context);
}
}
else
{
aspect.IncrementOffset(context.Buffer(), context);
}
}
/// <exception cref="Db4objects.Db4o.Internal.FieldIndexException"></exception>
public override void AddFieldIndex(ObjectIdContextImpl context)
{
LocalTransaction transaction = (LocalTransaction)context.Transaction();
LocalObjectContainer localContainer = (LocalObjectContainer)transaction.Container
();
Slot oldSlot = transaction.IdSystem().CommittedSlot(context.ObjectId());
int savedOffset = context.Offset();
int db4oDatabaseIdentityID = context.ReadInt();
long uuid = context.ReadLong();
context.Seek(savedOffset);
bool isnew = (oldSlot.IsNull());
if ((uuid == 0 || db4oDatabaseIdentityID == 0) && context.ObjectId() > 0 && !isnew)
{
UUIDFieldMetadata.DatabaseIdentityIDAndUUID identityAndUUID = ReadDatabaseIdentityIDAndUUID
(localContainer, context.ClassMetadata(), oldSlot, false);
db4oDatabaseIdentityID = identityAndUUID.databaseIdentityID;
uuid = identityAndUUID.uuid;
}
if (db4oDatabaseIdentityID == 0)
{
db4oDatabaseIdentityID = localContainer.Identity().GetID(transaction);
}
if (uuid == 0)
{
uuid = localContainer.GenerateTimeStampId();
}
StatefulBuffer writer = (StatefulBuffer)context.Buffer();
writer.WriteInt(db4oDatabaseIdentityID);
writer.WriteLong(uuid);
if (isnew)
{
AddIndexEntry(writer, uuid);
}
}
/// <exception cref="Db4objects.Db4o.Internal.FieldIndexException"></exception>
public override void AddFieldIndex(ObjectIdContextImpl context)
{
StatefulBuffer buffer = (StatefulBuffer)context.Buffer();
buffer.WriteLong(context.Transaction().Container().GenerateTimeStampId());
}