public void capture_events_to_an_existing_stream_and_fetch_the_events_back_in_another_database_schema(DocumentTracking sessionType)
{
var store = InitStore("event_store");
var id = Guid.NewGuid();
var started = new QuestStarted();
using (var session = store.OpenSession(sessionType))
{
session.Events.StartStream<Quest>(id, started);
session.SaveChanges();
}
using (var session = store.OpenSession(sessionType))
{
// SAMPLE: append-events
var joined = new MembersJoined { Members = new string[] { "Rand", "Matt", "Perrin", "Thom" } };
var departed = new MembersDeparted { Members = new[] { "Thom" } };
session.Events.Append(id, joined, departed);
session.SaveChanges();
// ENDSAMPLE
var streamEvents = session.Events.FetchStream(id);
streamEvents.Count().ShouldBe(3);
streamEvents.ElementAt(0).Data.ShouldBeOfType<QuestStarted>();
streamEvents.ElementAt(0).Version.ShouldBe(1);
streamEvents.ElementAt(1).Data.ShouldBeOfType<MembersJoined>();
streamEvents.ElementAt(1).Version.ShouldBe(2);
streamEvents.ElementAt(2).Data.ShouldBeOfType<MembersDeparted>();
streamEvents.ElementAt(2).Version.ShouldBe(3);
}
}
public void ForNewQuestStream(string name, DateTime date)
{
var started = new QuestStarted { Name = name };
using (var session = _store.LightweightSession())
{
_lastStream = session.Events.StartStream<Quest>(started);
_streams[name] = _lastStream;
session.SaveChanges();
}
}
public void live_aggregate_equals_inlined_aggregate_without_hidden_contracts(DocumentTracking sessionType)
{
var store = InitStore("event_store");
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
//Note Id = questId, is we remove it from first message then AggregateStream will return party.Id=default(Guid) that is not equals to Load<QuestParty> result
var started = new QuestStarted { /*Id = questId,*/ Name = "Destroy the One Ring" };
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream<Quest>(questId, started, joined1);
session.SaveChanges();
}
using (var session = store.OpenSession())
{
var liveAggregate = session.Events.AggregateStream<QuestParty>(questId);
var inlinedAggregate = session.Load<QuestParty>(questId);
liveAggregate.Id.ShouldBe(inlinedAggregate.Id);
inlinedAggregate.ToString().ShouldBe(liveAggregate.ToString());
}
}
// ENDSAMPLE
// SAMPLE: using_live_transformed_events
public void using_live_transformed_events(IDocumentSession session)
{
var started = new QuestStarted { Name = "Find the Orb" };
var joined = new MembersJoined { Day = 2, Location = "Faldor's Farm", Members = new string[] { "Garion", "Polgara", "Belgarath" } };
var slayed1 = new MonsterSlayed { Name = "Troll" };
var slayed2 = new MonsterSlayed { Name = "Dragon" };
MembersJoined joined2 = new MembersJoined { Day = 5, Location = "Sendaria", Members = new string[] { "Silk", "Barak" } };
session.Events.StartStream<Quest>(started, joined, slayed1, slayed2);
session.SaveChanges();
// Our MonsterDefeated documents are created inline
// with the SaveChanges() call above and are available
// for querying
session.Query<MonsterDefeated>().Count()
.ShouldBe(2);
}
public void capture_events()
{
// SAMPLE: event-store-quickstart
var store = DocumentStore.For(_ =>
{
_.Connection(ConnectionSource.ConnectionString);
_.Events.InlineProjections.AggregateStreamsWith<QuestParty>();
});
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
var started = new QuestStarted {Name = "Destroy the One Ring"};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
// Start a brand new stream and commit the new events as
// part of a transaction
session.Events.StartStream<Quest>(questId, started, joined1);
session.SaveChanges();
// Append more events to the same stream
var joined2 = new MembersJoined(3, "Buckland", "Merry", "Pippen");
var joined3 = new MembersJoined(10, "Bree", "Aragorn");
var arrived = new ArrivedAtLocation { Day = 15, Location = "Rivendell" };
session.Events.Append(questId, joined2, joined3, arrived);
session.SaveChanges();
}
// ENDSAMPLE
// SAMPLE: events-fetching-stream
using (var session = store.OpenSession())
{
var events = session.Events.FetchStream(questId);
events.Each(evt =>
{
Console.WriteLine($"{evt.Version}.) {evt.Data}");
});
}
// ENDSAMPLE
// SAMPLE: events-aggregate-on-the-fly
using (var session = store.OpenSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream<QuestParty>(questId);
Console.WriteLine(party);
var party_at_version_3 = session.Events
.AggregateStream<QuestParty>(questId, 3);
var party_yesterday = session.Events
.AggregateStream<QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
}
// ENDSAMPLE
using (var session = store.OpenSession())
{
var party = session.Load<QuestParty>(questId);
Console.WriteLine(party);
}
}
private void Apply(QuestStarted started)
{
Name = started.Name;
}
public void open_persisted_stream_in_new_store_with_same_settings(DocumentTracking sessionType, TenancyStyle tenancyStyle, string[] tenants)
{
var store = InitStore(tenancyStyle);
var questId = Guid.NewGuid();
When.CalledForEach(tenants, (tenantId, index) =>
{
using (var session = store.OpenSession(tenantId, sessionType))
{
//Note "Id = questId" @see live_aggregate_equals_inlined_aggregate...
var started = new QuestStarted {
Id = questId, Name = "Destroy the One Ring"
};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream <Quest>(questId, started, joined1);
session.SaveChanges();
}
// events-aggregate-on-the-fly - works with same store
using (var session = store.OpenSession(tenantId, sessionType))
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);
party.Id.ShouldBe(questId);
party.ShouldNotBeNull();
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
party_at_version_3.ShouldNotBeNull();
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
using (var session = store.OpenSession(tenantId, sessionType))
{
var party = session.Load <QuestParty>(questId);
party.Id.ShouldBe(questId);
}
var newStore = InitStore(tenancyStyle, false);
//Inline is working
using (var session = store.OpenSession(tenantId, sessionType))
{
var party = session.Load <QuestParty>(questId);
SpecificationExtensions.ShouldNotBeNull(party);
}
//GetAll
using (var session = store.OpenSession(tenantId, sessionType))
{
var parties = session.Events.QueryRawEventDataOnly <QuestParty>().ToArray();
foreach (var party in parties)
{
SpecificationExtensions.ShouldNotBeNull(party);
}
}
//This AggregateStream fail with NPE
using (var session = newStore.OpenSession(tenantId, sessionType))
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);//Here we get NPE
party.Id.ShouldBe(questId);
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
party_at_version_3.Id.ShouldBe(questId);
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
}).ShouldThrowIf(
(tenancyStyle == TenancyStyle.Single && tenants.Length > 1) || (tenancyStyle == TenancyStyle.Conjoined && tenants.SequenceEqual(SameTenants))
);
}
public void open_persisted_stream_in_new_store_with_same_settings()
{
var store = InitStore("event_store");
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
//Note "Id = questId" @see live_aggregate_equals_inlined_aggregate...
var started = new QuestStarted {
Id = questId, Name = "Destroy the One Ring"
};
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream(questId, started, joined1);
session.SaveChanges();
}
// events-aggregate-on-the-fly - works with same store
using (var session = store.OpenSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);
party.Id.ShouldBe(questId);
SpecificationExtensions.ShouldNotBeNull(party);
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
SpecificationExtensions.ShouldNotBeNull(party_at_version_3);
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
using (var session = store.OpenSession())
{
var party = session.Load <QuestParty>(questId);
party.Id.ShouldBe(questId);
}
var newStore = InitStore("event_store", false);
//Inline is working
using (var session = store.OpenSession())
{
var party = session.Load <QuestParty>(questId);
SpecificationExtensions.ShouldNotBeNull(party);
}
//GetAll
using (var session = store.OpenSession())
{
var parties = session.Events.QueryRawEventDataOnly <QuestParty>().ToArray <QuestParty>();
foreach (var party in parties)
{
SpecificationExtensions.ShouldNotBeNull(party);
}
}
//This AggregateStream fail with NPE
using (var session = newStore.OpenSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream <QuestParty>(questId);//Here we get NPE
party.Id.ShouldBe(questId);
var party_at_version_3 = session.Events
.AggregateStream <QuestParty>(questId, 3);
party_at_version_3.Id.ShouldBe(questId);
var party_yesterday = session.Events
.AggregateStream <QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldBeNull();
}
}
public void Apply(QuestStarted started)
{
Name = started.Name;
}
protected bool Equals(QuestStarted other)
{
return(Name == other.Name && Id.Equals(other.Id));
}
public void assert_on_max_event_id_on_event_stream_append(
DocumentTracking sessionType)
{
var store = InitStore("event_store");
var id = Guid.NewGuid();
var started = new QuestStarted();
using (var session = store.OpenSession(sessionType))
{
// SAMPLE: append-events-assert-on-eventid
session.Events.StartStream<Quest>(id, started);
session.SaveChanges();
var joined = new MembersJoined { Members = new[] { "Rand", "Matt", "Perrin", "Thom" } };
var departed = new MembersDeparted { Members = new[] { "Thom" } };
// Events are appended into the stream only if the maximum event id for the stream
// would be 3 after the append operation.
session.Events.Append(id, 3, joined, departed);
session.SaveChanges();
// ENDSAMPLE
}
}
public async Task aggregate_stream_async_has_the_id()
{
var store = InitStore("event_store");
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
var parties = await session.Query<QuestParty>().ToListAsync();
parties.Count.ShouldBeLessThanOrEqualTo(0);
}
//This SaveChanges will fail with missing method (ro collection configured?)
using (var session = store.OpenSession())
{
var started = new QuestStarted { Name = "Destroy the One Ring" };
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream<Quest>(questId, started, joined1);
await session.SaveChangesAsync();
var party = await session.Events.AggregateStreamAsync<QuestParty>(questId);
party.Id.ShouldBe(questId);
}
}
public void query_before_saving(DocumentTracking sessionType)
{
var store = InitStore("event_store");
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
var parties = session.Query<QuestParty>().ToArray();
parties.Length.ShouldBeLessThanOrEqualTo(0);
}
//This SaveChanges will fail with missing method (ro collection configured?)
using (var session = store.OpenSession())
{
var started = new QuestStarted { Name = "Destroy the One Ring" };
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream<Quest>(questId, started, joined1);
session.SaveChanges();
var party = session.Events.AggregateStream<QuestParty>(questId);
party.Id.ShouldBe(questId);
}
}
public void open_persisted_stream_in_new_store_with_same_settings(DocumentTracking sessionType)
{
var store = InitStore("event_store");
var questId = Guid.NewGuid();
using (var session = store.OpenSession())
{
//Note "Id = questId" @see live_aggregate_equals_inlined_aggregate...
var started = new QuestStarted { Id = questId, Name = "Destroy the One Ring" };
var joined1 = new MembersJoined(1, "Hobbiton", "Frodo", "Merry");
session.Events.StartStream<Quest>(questId, started, joined1);
session.SaveChanges();
}
// events-aggregate-on-the-fly - works with same store
using (var session = store.OpenSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream<QuestParty>(questId);
party.Id.ShouldBe(questId);
party.ShouldNotBeNull();
var party_at_version_3 = session.Events
.AggregateStream<QuestParty>(questId, 3);
party_at_version_3.ShouldNotBeNull();
var party_yesterday = session.Events
.AggregateStream<QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.ShouldNotBeNull();
}
using (var session = store.OpenSession())
{
var party = session.Load<QuestParty>(questId);
party.Id.ShouldBe(questId);
}
var newStore = InitStore("event_store", false);
//Inline is working
using (var session = store.OpenSession())
{
var party = session.Load<QuestParty>(questId);
party.ShouldNotBeNull();
}
//GetAll
using (var session = store.OpenSession())
{
var parties = session.Events.QueryRawEventDataOnly<QuestParty>().ToArray();
foreach (var party in parties)
{
party.ShouldNotBeNull();
}
}
//This AggregateStream fail with NPE
using (var session = newStore.OpenSession())
{
// questId is the id of the stream
var party = session.Events.AggregateStream<QuestParty>(questId);//Here we get NPE
party.Id.ShouldBe(questId);
var party_at_version_3 = session.Events
.AggregateStream<QuestParty>(questId, 3);
party_at_version_3.Id.ShouldBe(questId);
var party_yesterday = session.Events
.AggregateStream<QuestParty>(questId, timestamp: DateTime.UtcNow.AddDays(-1));
party_yesterday.Id.ShouldBe(questId);
}
}
public void get_correct_events_from_single_stream()
{
var listener = new StubDocumentSessionListener();
var store = InitStore(listener);
var id = Guid.NewGuid();
var started = new QuestStarted();
using (var session = store.LightweightSession())
{
session.Events.StartStream<Quest>(id, started);
session.SaveChanges();
var events = listener.AfterCommitSession.LastCommit
.GetEvents()
.ToList();
events.Count.ShouldBe(1);
events.ElementAt(0).Data.ShouldBeOfType<QuestStarted>();
}
using (var session = store.LightweightSession())
{
var joined = new MembersJoined { Members = new string[] { "Rand", "Matt", "Perrin", "Thom" } };
var departed = new MembersDeparted { Members = new[] { "Thom" } };
session.Events.Append(id, joined, departed);
session.SaveChanges();
var events = listener.AfterCommitSession.LastCommit
.GetEvents()
.ToList();
events.Count.ShouldBe(2);
events.ElementAt(0).Data.ShouldBeOfType<MembersJoined>();
events.ElementAt(1).Data.ShouldBeOfType<MembersDeparted>();
}
}
