예제 #1
0
 public override IQueryFilter GetUniqueFilter()
 {
     if (UniqueFilterProvider != null)
     {
         return(UniqueFilterProvider(this));
     }
     else
     {
         var colFilter = new LeftRightColumns();
         return(colFilter.KeyColumn == IdValue);
     }
 }
예제 #2
0
        public static long Count(WhereDelegate <LeftRightColumns> where, Database database = null)
        {
            LeftRightColumns c      = new LeftRightColumns();
            IQueryFilter     filter = where (c);

            Database db    = database ?? Db.For <LeftRight>();
            QuerySet query = GetQuerySet(db);

            query.Count <LeftRight>();
            query.Where(filter);
            query.Execute(db);
            return(query.Results.As <CountResult>(0).Value);
        }
예제 #3
0
        public static LeftRight GetOneWhere(WhereDelegate <LeftRightColumns> where, Database database = null)
        {
            var result = OneWhere(where, database);

            if (result == null)
            {
                LeftRightColumns c      = new LeftRightColumns();
                IQueryFilter     filter = where (c);
                result = CreateFromFilter(filter, database);
            }

            return(result);
        }
예제 #4
0
 public static async Task BatchQuery <ColType>(int batchSize, WhereDelegate <LeftRightColumns> where, Action <IEnumerable <LeftRight> > batchProcessor, Bam.Net.Data.OrderBy <LeftRightColumns> orderBy, Database database = null)
 {
     await Task.Run(async() =>
     {
         LeftRightColumns columns = new LeftRightColumns();
         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, (LeftRightColumns) where (columns) && orderBy.Column > top, orderBy, database);
         }
     });
 }
예제 #5
0
 public static async Task BatchQuery(int batchSize, WhereDelegate <LeftRightColumns> where, Action <IEnumerable <LeftRight> > batchProcessor, Database database = null)
 {
     await Task.Run(async() =>
     {
         LeftRightColumns columns = new LeftRightColumns();
         var orderBy = Bam.Net.Data.Order.By <LeftRightColumns>(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, (LeftRightColumns) where (columns) && columns.KeyColumn > topId, orderBy, database);
         }
     });
 }
예제 #6
0
        public static LeftRightCollection Top(int count, WhereDelegate <LeftRightColumns> where, OrderBy <LeftRightColumns> orderBy, Database database = null)
        {
            LeftRightColumns c      = new LeftRightColumns();
            IQueryFilter     filter = where (c);

            Database db    = database ?? Db.For <LeftRight>();
            QuerySet query = GetQuerySet(db);

            query.Top <LeftRight>(count);
            query.Where(filter);

            if (orderBy != null)
            {
                query.OrderBy <LeftRightColumns>(orderBy);
            }

            query.Execute(db);
            var results = query.Results.As <LeftRightCollection>(0);

            results.Database = db;
            return(results);
        }