public async Task PrefetchManySeveralBatchesAsyncTest()
{
using (var session = Domain.OpenSession())
using (var tx = session.OpenTransaction()) {
var linesField = Domain.Model.Types[typeof(Invoice)].Fields["InvoiceLines"];
var trackField = Domain.Model.Types[typeof(InvoiceLine)].Fields["Track"];
var invoices = session.Query.All <Invoice>()
.Take(90)
.Prefetch(o => o.InvoiceLines.Prefetch(od => od.Track)).AsAsync();
int count1 = 0, count2 = 0;
foreach (var invoice in await invoices)
{
count1++;
var entitySetState = GetFullyLoadedEntitySet(session, invoice.Key, linesField);
foreach (var line in entitySetState)
{
count2++;
PrefetchTestHelper.AssertOnlySpecifiedColumnsAreLoaded(line, line.TypeInfo, session,
PrefetchTestHelper.IsFieldToBeLoadedByDefault);
PrefetchTestHelper.AssertReferencedEntityIsLoaded(line, session, trackField);
}
}
Console.WriteLine(count1);
Console.WriteLine(count2);
Assert.AreEqual(11, session.Handler.PrefetchTaskExecutionCount);
}
}
public void PrefetchViaReferenceToSelfTest()
{
Key key;
using (var session = Domain.OpenSession())
using (var tx = session.OpenTransaction()) {
var referenceToSelf = new ReferenceToSelf {
AuxField = 100
};
key = referenceToSelf.Key;
referenceToSelf.Reference = referenceToSelf;
tx.Complete();
}
using (var session = Domain.OpenSession())
using (session.OpenTransaction()) {
var prefetchManager = (PrefetchManager)PrefetchProcessorField.GetValue(session.Handler);
var referenceField = Domain.Model.Types[typeof(ReferenceToSelf)].Fields["Reference"];
prefetchManager.InvokePrefetch(key, null, new PrefetchFieldDescriptor(referenceField, true, true));
prefetchManager.ExecuteTasks(true);
PrefetchTestHelper.AssertOnlySpecifiedColumnsAreLoaded(key, key.TypeInfo, session,
PrefetchTestHelper.IsFieldToBeLoadedByDefault);
PrefetchTestHelper.AssertReferencedEntityIsLoaded(key, session, referenceField);
}
}
public void ReferencedEntityWhichOwnerHasAlreadyBeenFetchedInAnotherTransactionPrefetchTest()
{
var orderKey = GetFirstKey <Order>();
using (var session = Domain.OpenSession()) {
using (session.OpenTransaction())
session.Query.Single <Order>(orderKey);
using (session.OpenTransaction()) {
session.Handler.InvokePrefetch(orderKey, null, new PrefetchFieldDescriptor(CustomerField));
session.Handler.ExecutePrefetchTasks();
PrefetchTestHelper.AssertReferencedEntityIsLoaded(orderKey, session, CustomerField);
}
}
}
