public static Db4objects.Drs.Db4o.ReplicationRecord BeginReplication(Transaction
transA, Transaction transB)
{
ObjectContainerBase peerA = transA.Container();
ObjectContainerBase peerB = transB.Container();
Db4oDatabase dbA = ((IInternalObjectContainer)peerA).Identity();
Db4oDatabase dbB = ((IInternalObjectContainer)peerB).Identity();
dbB.Bind(transA);
dbA.Bind(transB);
Db4oDatabase younger = null;
Db4oDatabase older = null;
if (dbA.IsOlderThan(dbB))
{
younger = dbB;
older = dbA;
}
else
{
younger = dbA;
older = dbB;
}
Db4objects.Drs.Db4o.ReplicationRecord rrA = QueryForReplicationRecord(peerA, transA
, younger, older);
Db4objects.Drs.Db4o.ReplicationRecord rrB = QueryForReplicationRecord(peerB, transB
, younger, older);
if (rrA == null)
{
if (rrB == null)
{
return(new Db4objects.Drs.Db4o.ReplicationRecord(younger, older));
}
rrB.Store(peerA);
return(rrB);
}
if (rrB == null)
{
rrA.Store(peerB);
return(rrA);
}
if (rrA != rrB)
{
peerB.ShowInternalClasses(true);
try
{
int id = peerB.GetID(transB, rrB);
peerB.Bind(transB, rrA, id);
}
finally
{
peerB.ShowInternalClasses(false);
}
}
return(rrA);
}
internal virtual Db4oDatabase Produce(byte[] signature, long creationTime)
{
Db4oDatabase db = (Db4oDatabase)_identities.Get(signature);
if (db != null)
{
return(db);
}
db = new Db4oDatabase(signature, creationTime);
db.Bind(_stream.Transaction);
_identities.Put(signature, db);
return(db);
}
