/// <summary> /// 异步的,对实体集合进行批量操作。 /// </summary> /// <param name="instances">要操作的实体序列。</param> /// <param name="fnOperation">实体操作表达式,权提供 Insert、Update 和 Delete 操作。</param> /// <param name="batchOpt"></param> /// <param name="cancellationToken">取消操作的通知。</param> /// <returns>影响的实体数。</returns> public async virtual Task <int> BatchAsync(IEnumerable <TEntity> instances, Expression <Func <IRepository <TEntity>, TEntity, int> > fnOperation, BatchOperateOptions batchOpt = null, CancellationToken cancellationToken = default) { if (instances.IsNullOrEmpty()) { return(-1); } cancellationToken.ThrowIfCancellationRequested(); var operateName = OperateFinder.Find(fnOperation); var eventType = GetEventType(operateName); return(await _subMgr.OnBatchAsync <TEntity, int>(_contextService.ServiceProvider, _options.NotifyEvents, instances.Cast <IEntity>(), eventType, () => _repositoryProxy.BatchAsync(instances, fnOperation, batchOpt, cancellationToken))); }
/// <summary> /// 对实体集合进行批量操作。 /// </summary> /// <param name="instances">要操作的实体序列。</param> /// <param name="fnOperation">实体操作表达式,权提供 Insert、Update 和 Delete 操作。</param> /// <param name="batchOpt"></param> /// <returns>影响的实体数。</returns> public virtual int Batch(IEnumerable <TEntity> instances, Expression <Func <IRepository <TEntity>, TEntity, int> > fnOperation, BatchOperateOptions batchOpt = null) { if (instances.IsNullOrEmpty()) { return(-1); } var operateName = OperateFinder.Find(fnOperation); var eventType = GetEventType(operateName); return(_subMgr.OnBatch <TEntity, int>(_contextService.ServiceProvider, _options.NotifyEvents, instances.Cast <IEntity>(), eventType, () => _repositoryProxy.Batch(instances, fnOperation, batchOpt))); }