public override IQueryFilter GetUniqueFilter() { if (UniqueFilterProvider != null) { return(UniqueFilterProvider(this)); } else { var colFilter = new UpdateOperationColumns(); return(colFilter.KeyColumn == IdValue); } }
public static long Count(WhereDelegate <UpdateOperationColumns> where, Database database = null) { UpdateOperationColumns c = new UpdateOperationColumns(); IQueryFilter filter = where (c); Database db = database ?? Db.For <UpdateOperation>(); QuerySet query = GetQuerySet(db); query.Count <UpdateOperation>(); query.Where(filter); query.Execute(db); return(query.Results.As <CountResult>(0).Value); }
public static UpdateOperation GetOneWhere(WhereDelegate <UpdateOperationColumns> where, Database database = null) { var result = OneWhere(where, database); if (result == null) { UpdateOperationColumns c = new UpdateOperationColumns(); IQueryFilter filter = where (c); result = CreateFromFilter(filter, database); } return(result); }
public static async Task BatchQuery <ColType>(int batchSize, WhereDelegate <UpdateOperationColumns> where, Action <IEnumerable <UpdateOperation> > batchProcessor, Bam.Net.Data.OrderBy <UpdateOperationColumns> orderBy, Database database = null) { await Task.Run(async() => { UpdateOperationColumns columns = new UpdateOperationColumns(); var results = Top(batchSize, where, orderBy, database); while (results.Count > 0) { await Task.Run(() => { batchProcessor(results); }); ColType top = results.Select(d => d.Property <ColType>(orderBy.Column.ToString())).ToArray().Largest(); results = Top(batchSize, (UpdateOperationColumns) where (columns) && orderBy.Column > top, orderBy, database); } }); }
public static async Task BatchQuery(int batchSize, WhereDelegate <UpdateOperationColumns> where, Action <IEnumerable <UpdateOperation> > batchProcessor, Database database = null) { await Task.Run(async() => { UpdateOperationColumns columns = new UpdateOperationColumns(); var orderBy = Bam.Net.Data.Order.By <UpdateOperationColumns>(c => c.KeyColumn, Bam.Net.Data.SortOrder.Ascending); var results = Top(batchSize, where, orderBy, database); while (results.Count > 0) { await Task.Run(() => { batchProcessor(results); }); long topId = results.Select(d => d.Property <long>(columns.KeyColumn.ToString())).ToArray().Largest(); results = Top(batchSize, (UpdateOperationColumns) where (columns) && columns.KeyColumn > topId, orderBy, database); } }); }
public static UpdateOperationCollection Top(int count, WhereDelegate <UpdateOperationColumns> where, OrderBy <UpdateOperationColumns> orderBy, Database database = null) { UpdateOperationColumns c = new UpdateOperationColumns(); IQueryFilter filter = where (c); Database db = database ?? Db.For <UpdateOperation>(); QuerySet query = GetQuerySet(db); query.Top <UpdateOperation>(count); query.Where(filter); if (orderBy != null) { query.OrderBy <UpdateOperationColumns>(orderBy); } query.Execute(db); var results = query.Results.As <UpdateOperationCollection>(0); results.Database = db; return(results); }