public PersistentTextAssimilator(string dbFilename) { this.pile = new Pile.Engine.Persistent.VistaDb.VistaDbPersistentPile(); this.pile.Open(dbFilename); this.rootOfAllStrings = this.pile.Create("rootOfAllStrings"); // no relations for chars need to be created! // they are just "assumed" to be virtually existent from -1 to -255 }