private void Compile() { if (DataContext == null) { throw ExceptionBuilder.PropertyNotInitialized("DataContext"); } if (Text == null || Text.Length == 0) { throw ExceptionBuilder.PropertyNotInitialized("Text"); } // Compile query ClearCompiledState(); Compiler compiler = new Compiler(_errorCollector); _resultAlgebraNode = compiler.CompileQuery(Text, Scope); if (_errorCollector.ErrorsSeen) { IList <CompilationError> errors = _errorCollector.GetErrors(); OnCompilationFailed(new CompilationFailedEventArgs(errors)); throw ExceptionBuilder.QueryCompilationFailed(errors); } OnCompilationSucceeded(EventArgs.Empty); _resultIterator = IteratorCreator.Convert(DataContext.MetadataContext, true, _resultAlgebraNode); }
//constructor public Itermediary(IteratorCreator songIterator) { this.songIterator = songIterator; example = new ObservableCollection <Song>(); }