public AsyncSubject <Unit> Insert(IEnumerable <CacheElement> items)
{
var ret = OperationQueueItem.CreateInsert(OperationType.BulkInsertSqliteOperation, items);
_operationQueue.Add(ret);
return(ret.CompletionAsUnit);
}
static OperationQueueItem GroupUnrelatedInserts(IEnumerable <OperationQueueItem> unrelatedInserts)
{
if (unrelatedInserts.Count() == 1)
{
return(unrelatedInserts.First());
}
var subj = new AsyncSubject <Unit>();
var elements = unrelatedInserts.SelectMany(x =>
{
subj.Subscribe(x.CompletionAsUnit);
return(x.ParametersAsElements);
}).ToList();
return(OperationQueueItem.CreateInsert(
OperationType.BulkInsertSqliteOperation, elements, subj));
}
private static OperationQueueItem GroupUnrelatedInserts(IEnumerable <OperationQueueItem> unrelatedInserts)
{
var operationQueueItems = unrelatedInserts.ToList();
if (operationQueueItems.Count == 1)
{
return(operationQueueItems[0]);
}
var subj = new AsyncSubject <Unit>();
var elements = operationQueueItems.SelectMany(x =>
{
subj.Subscribe(x.CompletionAsUnit);
return(x.ParametersAsElements ?? Enumerable.Empty <CacheElement>());
}).ToList();
return(OperationQueueItem.CreateInsert(
OperationType.BulkInsertSqliteOperation, elements, subj));
}
