public virtual long CollectFor(LocalObjectContainer db, int id, ISlotMap slotMap)
{
object bigSet = db.GetByID(id);
db.Activate(bigSet, 1);
BTree btree = (BTree)Reflection4.GetFieldValue(bigSet, "_bTree");
return(FileUsageStatsCollector.BTreeUsage(db, btree, slotMap));
}
public virtual void ReadIdentity(LocalTransaction trans)
{
LocalObjectContainer file = trans.LocalContainer();
Db4oDatabase identity = Debug4.staticIdentity ?
Db4oDatabase.StaticIdentity :
(Db4oDatabase)file.GetByID(trans, SystemData().IdentityId());
if (null != identity)
{
file.Activate(trans, identity, new FixedActivationDepth(2));
SystemData().Identity(identity);
}
}
public virtual void ReplaceClassMetadataRepository()
{
Db4objects.Db4o.Internal.Transaction systemTransaction = _targetDb.SystemTransaction
();
// Can't use strictMappedID because the repository ID can
// be lower than HandlerRegisrtry _highestBuiltinTypeID and
// the ClassRepository ID would be treated as a system handler
// and the unmapped ID would be returned.
int newRepositoryId = _mapping.MappedId(SourceClassCollectionID());
int sourceIdentityID = DatabaseIdentityID(DefragmentServicesImpl.Sourcedb);
int targetIdentityID = _mapping.MappedId(sourceIdentityID);
int targetUuidIndexID = _mapping.MappedId(SourceUuidIndexID());
int oldIdentityId = _targetDb.SystemData().Identity().GetID(systemTransaction);
int oldRepositoryId = _targetDb.ClassCollection().GetID();
ClassMetadataRepository oldRepository = _targetDb.ClassCollection();
ClassMetadataRepository newRepository = new ClassMetadataRepository(systemTransaction
);
newRepository.SetID(newRepositoryId);
newRepository.Read(systemTransaction);
newRepository.InitOnUp(systemTransaction);
_targetDb.SystemData().ClassCollectionID(newRepositoryId);
_targetDb.ReplaceClassMetadataRepository(newRepository);
_targetDb.SystemData().UuidIndexId(targetUuidIndexID);
Db4oDatabase identity = (Db4oDatabase)_targetDb.GetByID(systemTransaction, targetIdentityID
);
_targetDb.SetIdentity(identity);
ClassMetadataIterator iterator = oldRepository.Iterator();
while (iterator.MoveNext())
{
ClassMetadata classMetadata = iterator.CurrentClass();
BTreeClassIndexStrategy index = (BTreeClassIndexStrategy)classMetadata.Index();
index.Btree().Free(_targetDb.LocalSystemTransaction());
FreeById(classMetadata.GetID());
}
FreeById(oldIdentityId);
FreeById(oldRepositoryId);
}