public View GetExistingView(string name)
{
View view = null;
if (views != null)
{
view = views.Get(name);
}
if (view != null)
{
return view;
}
view = new View(this, name);
if (view.GetViewId() == 0)
{
return null;
}
return RegisterView(view);
}
/// <exception cref="Couchbase.Lite.CouchbaseLiteException"></exception>
public virtual void TestViewIndex()
{
int numTimesMapFunctionInvoked = 0;
IDictionary <string, object> dict1 = new Dictionary <string, object>();
dict1["key"] = "one";
IDictionary <string, object> dict2 = new Dictionary <string, object>();
dict2["key"] = "two";
IDictionary <string, object> dict3 = new Dictionary <string, object>();
dict3["key"] = "three";
IDictionary <string, object> dictX = new Dictionary <string, object>();
dictX["clef"] = "quatre";
RevisionInternal rev1 = PutDoc(database, dict1);
RevisionInternal rev2 = PutDoc(database, dict2);
RevisionInternal rev3 = PutDoc(database, dict3);
PutDoc(database, dictX);
View view = database.GetView("aview");
var numTimesInvoked = 0;
MapDelegate mapBlock = (IDictionary <string, object> document, EmitDelegate emitter) =>
{
numTimesInvoked += 1;
NUnit.Framework.Assert.IsNotNull(document["_id"]);
NUnit.Framework.Assert.IsNotNull(document["_rev"]);
if (document["key"] != null)
{
emitter(document["key"], null);
}
};
view.SetMap(mapBlock, "1");
NUnit.Framework.Assert.AreEqual(1, view.GetViewId());
NUnit.Framework.Assert.IsTrue(view.IsStale());
view.UpdateIndex();
IList <IDictionary <string, object> > dumpResult = view.Dump();
Log.V(Tag, "View dump: " + dumpResult);
NUnit.Framework.Assert.AreEqual(3, dumpResult.Count);
NUnit.Framework.Assert.AreEqual("\"one\"", dumpResult[0]["key"]);
NUnit.Framework.Assert.AreEqual(1, dumpResult[0]["seq"]);
NUnit.Framework.Assert.AreEqual("\"two\"", dumpResult[2]["key"]);
NUnit.Framework.Assert.AreEqual(2, dumpResult[2]["seq"]);
NUnit.Framework.Assert.AreEqual("\"three\"", dumpResult[1]["key"]);
NUnit.Framework.Assert.AreEqual(3, dumpResult[1]["seq"]);
//no-op reindex
NUnit.Framework.Assert.IsFalse(view.IsStale());
view.UpdateIndex();
// Now add a doc and update a doc:
RevisionInternal threeUpdated = new RevisionInternal(rev3.GetDocId(), rev3.GetRevId
(), false, database);
numTimesMapFunctionInvoked = mapBlock.GetNumTimesInvoked();
IDictionary <string, object> newdict3 = new Dictionary <string, object>();
newdict3["key"] = "3hree";
threeUpdated.SetProperties(newdict3);
Status status = new Status();
rev3 = database.PutRevision(threeUpdated, rev3.GetRevId(), false, status);
NUnit.Framework.Assert.IsTrue(status.IsSuccessful());
// Reindex again:
NUnit.Framework.Assert.IsTrue(view.IsStale());
view.UpdateIndex();
// Make sure the map function was only invoked one more time (for the document that was added)
NUnit.Framework.Assert.AreEqual(mapBlock.GetNumTimesInvoked(), numTimesMapFunctionInvoked
+ 1);
IDictionary <string, object> dict4 = new Dictionary <string, object>();
dict4["key"] = "four";
RevisionInternal rev4 = PutDoc(database, dict4);
RevisionInternal twoDeleted = new RevisionInternal(rev2.GetDocId(), rev2.GetRevId
(), true, database);
database.PutRevision(twoDeleted, rev2.GetRevId(), false, status);
NUnit.Framework.Assert.IsTrue(status.IsSuccessful());
// Reindex again:
NUnit.Framework.Assert.IsTrue(view.IsStale());
view.UpdateIndex();
dumpResult = view.Dump();
Log.V(Tag, "View dump: " + dumpResult);
NUnit.Framework.Assert.AreEqual(3, dumpResult.Count);
NUnit.Framework.Assert.AreEqual("\"one\"", dumpResult[2]["key"]);
NUnit.Framework.Assert.AreEqual(1, dumpResult[2]["seq"]);
NUnit.Framework.Assert.AreEqual("\"3hree\"", dumpResult[0]["key"]);
NUnit.Framework.Assert.AreEqual(5, dumpResult[0]["seq"]);
NUnit.Framework.Assert.AreEqual("\"four\"", dumpResult[1]["key"]);
NUnit.Framework.Assert.AreEqual(6, dumpResult[1]["seq"]);
// Now do a real query:
IList <QueryRow> rows = view.QueryWithOptions(null);
NUnit.Framework.Assert.AreEqual(3, rows.Count);
NUnit.Framework.Assert.AreEqual("one", rows[2].Key);
NUnit.Framework.Assert.AreEqual(rev1.GetDocId(), rows[2].DocumentId);
NUnit.Framework.Assert.AreEqual("3hree", rows[0].Key);
NUnit.Framework.Assert.AreEqual(rev3.GetDocId(), rows[0].DocumentId);
NUnit.Framework.Assert.AreEqual("four", rows[1].Key);
NUnit.Framework.Assert.AreEqual(rev4.GetDocId(), rows[1].DocumentId);
view.DeleteIndex();
}