public CompositeRepository(DaoRepository sourceRepository, DataSettings dataSettings = null)
{
DataSettings = dataSettings ?? DataSettings.Current;
SourceRepository = sourceRepository;
ReadRepository = new CachingRepository(sourceRepository);
WriteRepositories = new HashSet <IRepository>();
WorkspacePath = DataSettings.GetWorkspaceDirectory(this.GetType()).FullName;
BackupRepository = new ObjectRepository(DataSettings.GetSysDataDirectory("BackupObjectRepo").FullName);
TypeSchemaTempPathProvider = (sd, ts) => Path.Combine(WorkspacePath, sd.Name, ts.Hash);
WireBackup();
sourceRepository.StorableTypes.Each(type => AddType(type));
}