public RepositoryBarsFile(RepositoryBarsSameScaleInterval barsFolder, string symbol, bool throwIfDoesntExist = true, bool createIfDoesntExist = false)
 {
     this.BarsRepository = barsFolder;
     this.Symbol         = symbol;
     this.Abspath        = this.BarsRepository.AbspathForSymbol(this.Symbol, throwIfDoesntExist, createIfDoesntExist);
 }
		public RepositoryBarsPerst(RepositoryBarsSameScaleInterval barsFolder, string symbol, bool throwIfDoesntExist = true, bool createIfDoesntExist = false) {
			this.BarsRepository = barsFolder;
			this.Symbol = symbol;
			this.Abspath = this.BarsRepository.AbspathForSymbol(this.Symbol, throwIfDoesntExist, createIfDoesntExist);
		}