private void button1_Click(object sender, RoutedEventArgs e)
{
session.BeginUpdate();
IndexRoot indexRoot = (IndexRoot)session.Open(Oid.Encode(IndexRoot.PlaceInDatabase, 1, 1));
Placement docPlacement = new Placement(Document.PlaceInDatabase);
foreach (string str in listBoxPagesToAdd.Items)
{
Document doc = null;
try
{
if (str.Contains(".html") || str.Contains(".htm") || str.Contains("http") || str.Contains("aspx"))
{
doc = parseHtml(str, indexRoot);
}
else
{
doc = parseTextFile(str, indexRoot, docPlacement);
}
}
catch (WebException ex)
{
Console.WriteLine(ex.ToString());
}
}
createGlobalInvertedIndex(indexRoot);
listBoxPagesToAdd.Items.Clear();
List <Document> docs = indexRoot.repository.documentSet.ToList <Document>().Take(50).ToList <Document>();
inDbListBox.ItemsSource = docs;
session.Commit();
session.BeginRead();
updateDataGrids(indexRoot);
session.Commit();
}
public void FixedSizeManyTest(int howMany)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
FixedSize fixedSize;
FixedSize fixedSizePrior = new FixedSize();
for (int i = 0; i < howMany; i++)
{
fixedSize = new FixedSize();
fixedSize.Persist(session, fixedSizePrior);
fixedSizePrior = fixedSize;
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
Database db = session.OpenDatabase(FixedSize.PlaceInDatabase);
foreach (Page page in db)
{
if (page.PageNumber > 0)
{
foreach (FixedSize fixedSize in page)
{
--howMany;
Assert.NotNull(fixedSize);
}
}
}
session.Commit();
}
}
public void LocalDateTest()
{
LocalDate d1 = new LocalDate(2016, 1, 10);
LocalDate d2 = new LocalDate(2016, 1, 1);
LocalDate d1other = new LocalDate(2016, 1, 10);
Assert.AreNotEqual(d1, d2);
Assert.AreEqual(d1, d1other);
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
LocalDateField test1 = new LocalDateField("def", d1);
session.Persist(test1);
LocalDateField test = new LocalDateField("abc", d2);
session.Persist(test);
var result1 = session.AllObjects <LocalDateField>().First(t => t.Field2.Equals(d2)); // this works
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
var result2 = session.AllObjects <LocalDateField>().First(t =>
{
var l = t.Field2;
return(l.Equals(d2));
}); // this should work and doesnt
session.Commit();
}
}
public void TwoUpdaters2()
{
Assert.Throws <OpenDatabaseException>(() =>
{
UInt64 id;
try
{
using (var session = new SessionNoServerShared(systemDir))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
id = man.Id;
session.Commit();
session.BeginUpdate();
man.Age = ++man.Age;
session.FlushUpdates();
using (SessionNoServer session2 = new SessionNoServer(systemDir))
{
session2.BeginRead();
Man man2 = (Man)session2.Open(id);
Assert.Less(man2.Age, man.Age);
man2.Age = ++man.Age; // We'll get the OpenDatabase exception here since we are not in an update transaction
session2.Commit();
}
session.Commit();
session.Verify();
}
}
finally
{
System.GC.Collect();
}
});
}
public void QuerySomeBicycles()
{
try
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
Database db = session.OpenDatabase(session.DatabaseNumberOf(typeof(Bicycle)));
Bicycle b1 = db.AllObjects <Bicycle>().ElementAt(50005);
Bicycle b2 = db.AllObjects <Bicycle>().ElementAt <Bicycle>(50005);
if (b1 != b2)
{
throw new UnexpectedException("b1 != b2");
}
var src = from Bicycle bike in db.AllObjects <Bicycle>() where bike.Color == "blue" select bike;
foreach (Bicycle bike in src)
{
Console.WriteLine(bike.ToStringDetails(session));
}
session.Commit();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void hashCodeComparerStringTest()
{
Oid id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Placement place = new Placement(223, 1, 1, UInt16.MaxValue, UInt16.MaxValue);
session.Compact();
session.BeginUpdate();
HashCodeComparer<string> hashCodeComparer = new HashCodeComparer<string>();
BTreeSet<string> bTree = new BTreeSet<string>(hashCodeComparer, session);
bTree.Persist(place, session);
id = bTree.Oid;
for (int i = 0; i < 100000; i++)
{
bTree.Add(i.ToString());
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeSet<string> bTree= (BTreeSet<string>)session.Open(id);
int count = 0;
foreach (string str in bTree)
{
count++;
}
Assert.True(100000 == count);
session.Commit();
}
}
public void aaaE_Chris()
{
var person = new PersonChris()
{
Name = "John",
Address = "123 Blah St"
};
using (var session1 = new SessionNoServer(s_systemDir))
{
// Persist instance of Person within transaction
session1.BeginUpdate();
session1.Persist(person);
session1.Commit();
// Create new transaction and make changes to Person and add child object Job
session1.BeginUpdate();
person.Name = "Bob";
person.Jobs.Add(new Job {
Name = "clean house"
});
// Do not commit previous transaction (keep open) and attempt to read person using another session and a read transaction
using (var session2 = new SessionNoServer(s_systemDir))
{
session2.BeginRead();
uint dbNum = session2.DatabaseNumberOf(typeof(PersonChris));
Database db = session2.OpenDatabase(dbNum);
var person1 = db.AllObjects <PersonChris>().First(); // IOException is thrown here
session2.Commit();
}
}
}
public void hashCodeComparerStringTest()
{
Oid id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Placement place = new Placement(223, 1, 1, UInt16.MaxValue, UInt16.MaxValue);
session.Compact();
session.BeginUpdate();
HashCodeComparer <string> hashCodeComparer = new HashCodeComparer <string>();
BTreeSet <string> bTree = new BTreeSet <string>(hashCodeComparer, session);
bTree.Persist(place, session);
id = bTree.Oid;
for (int i = 0; i < 100000; i++)
{
bTree.Add(i.ToString());
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeSet <string> bTree = (BTreeSet <string>)session.Open(id);
int count = 0;
foreach (string str in bTree)
{
count++;
}
Assert.True(100000 == count);
session.Commit();
}
}
public void SingleReaderSingleUpdater1()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
session.Commit();
}
UInt64 id;
using (SessionNoServer session = new SessionNoServer(systemDir, 5000))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
id = man.Id;
using (SessionNoServer session2 = new SessionNoServer(systemDir))
{
session2.BeginRead();
Man man2 = (Man)session2.Open(id);
Assert.Null(man2);
session2.Commit();
}
session.Commit();
}
}
static void Main(string[] args)
{
SessionBase.BaseDatabasePath = @"d:/Databases";
bool dirExist = Directory.Exists(Path.Combine(SessionBase.BaseDatabasePath, s_systemDir));
if (!dirExist)
{
ImdbImport.ImprortImdb(s_systemDir);
}
KevinBaconNumbers kevinBaconNumbers = new KevinBaconNumbers();
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
try
{
session.BeginRead();
kevinBaconNumbers.calculateNumbers(session);
kevinBaconNumbers.printResults();
session.Commit();
}
catch (Exception e)
{
session.Abort();
Console.WriteLine(e.ToString());
}
}
}
static void Main(string[] args)
{
CreateData();
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
int ct = GeoHashQuery.SearchGeoHashIndex(session, 32.715736, -117.161087, 10000).Count;
Console.WriteLine($@"GeoObj located in San Diego by 10000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 32.715736, -117.161087, 100000).Count;
Console.WriteLine($@"GeoObj located in San Diego by 100000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 40.730610, -73.935242, 10000).Count;
Console.WriteLine($@"GeoObj located in New York City by 10000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 40.730610, -73.935242, 100000).Count;
Console.WriteLine($@"GeoObj located in New York City by 100000 meter radius: {ct}");
// Sweden bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 55.34, 10.96, 69.06, 24.17).Count;
Console.WriteLine($@"GeoObj located in Sweden: {ct}");
// Alaska bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 51.21, -169.01, 71.39, -129.99).Count;
Console.WriteLine($@"GeoObj located in Alaska: {ct}");
// California bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 32.53, -124.42, 42.01, -114.13).Count;
Console.WriteLine($@"GeoObj located in California: {ct}");
// USA bounding box
//GeoHashQuery.SearchGeoHashIndex(session, 18.9, -67.0, 71.4, 172.4);
//Console.WriteLine($@"Persons located in USA: {ct}");
}
}
static readonly string s_systemDir = "JsonExportImport"; // appended to SessionBase.BaseDatabasePath
static void Main(string[] args)
{
try
{
int personCt = 0;
using (SessionBase session = new SessionNoServer(s_systemDirToImport))
{
session.BeginRead();
IEnumerable <string> personStringEnum = session.ExportToJson <Person>();
using (SessionBase sessionImport = new SessionNoServer(s_systemDir))
{
sessionImport.BeginUpdate();
foreach (string json in personStringEnum)
{
Person person = sessionImport.ImportJson <Person>(json);
sessionImport.Persist(person);
personCt++;
}
session.Commit();
sessionImport.Commit();
Console.WriteLine("Imported " + personCt + " from Json strings");
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
static readonly string s_systemDir = "JsonExportImport"; // appended to SessionBase.BaseDatabasePath
static void Main(string[] args)
{
try
{
int personCt = 0;
using (SessionBase session = new SessionNoServer(s_systemDirToImport))
{
session.BeginRead();
IEnumerable<string> personStringEnum = session.ExportToJson<Person>();
using (SessionBase sessionImport = new SessionNoServer(s_systemDir))
{
sessionImport.BeginUpdate();
foreach (string json in personStringEnum)
{
Person person = sessionImport.ImportJson<Person>(json);
sessionImport.Persist(person);
personCt++;
}
session.Commit();
sessionImport.Commit();
Console.WriteLine("Imported " + personCt + " from Json strings");
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void bSyncDeletedDatabases()
{
using (SessionBase session = new SessionNoServer(s_sync1))
{
using (var trans = session.BeginUpdate())
{
for (uint i = 10; i < 14; i++)
{
var database = session.OpenDatabase(i);
session.DeleteDatabase(database);
}
session.Commit();
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
updateSession.SyncWith(readFromSession);
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
readFromSession.BeginRead();
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
using (var trans = updateSession.BeginRead())
{
Assert.AreEqual(updateSession.OpenAllDatabases().Count, readFromSession.OpenAllDatabases().Count - 1); // - 1 due to additional change tracking databases in original
}
}
}
}
public void dSyncDeletePages()
{
using (SessionBase session = new SessionNoServer(s_sync1))
{
using (var trans = session.BeginUpdate())
{
foreach (FourPerPage fourPerPage in session.AllObjects <FourPerPage>())
{
fourPerPage.Unpersist(session);
}
session.Commit();
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
updateSession.SyncWith(readFromSession);
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
readFromSession.BeginRead();
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
using (var trans = updateSession.BeginRead())
{
Assert.AreEqual(updateSession.AllObjects <FourPerPage>().Count, readFromSession.AllObjects <FourPerPage>().Count);
}
}
}
}
public void cSyncNewPages()
{
using (SessionBase session = new SessionNoServer(s_sync1))
{
using (var trans = session.BeginUpdate())
{
for (uint i = 0; i < 100; i++)
{
FourPerPage fourPerPage = new FourPerPage(i);
session.Persist(fourPerPage);
}
session.Commit();
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
using (var updateSession = new SessionNoServerShared(s_sync2))
{
updateSession.SyncWith(readFromSession);
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
readFromSession.BeginRead();
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
using (var trans = updateSession.BeginRead())
{
Assert.AreEqual(updateSession.AllObjects <FourPerPage>().Count, readFromSession.AllObjects <FourPerPage>().Count);
}
}
}
}
static void Main(string[] args)
{
CreateData();
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
int ct = GeoHashQuery.SearchGeoHashIndex(session, 32.715736, -117.161087, 10000).Count;
Console.WriteLine($@"GeoObj located in San Diego by 10000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 32.715736, -117.161087, 100000).Count;
Console.WriteLine($@"GeoObj located in San Diego by 100000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 40.730610, -73.935242, 10000).Count;
Console.WriteLine($@"GeoObj located in New York City by 10000 meter radius: {ct}");
ct = GeoHashQuery.SearchGeoHashIndex(session, 40.730610, -73.935242, 100000).Count;
Console.WriteLine($@"GeoObj located in New York City by 100000 meter radius: {ct}");
// Sweden bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 55.34, 10.96, 69.06, 24.17).Count;
Console.WriteLine($@"GeoObj located in Sweden: {ct}");
// Alaska bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 51.21, -169.01, 71.39, -129.99).Count;
Console.WriteLine($@"GeoObj located in Alaska: {ct}");
// California bounding box
ct = GeoHashQuery.SearchGeoHashIndex(session, 32.53, -124.42, 42.01, -114.13).Count;
Console.WriteLine($@"GeoObj located in California: {ct}");
// USA bounding box
//GeoHashQuery.SearchGeoHashIndex(session, 18.9, -67.0, 71.4, 172.4);
//Console.WriteLine($@"Persons located in USA: {ct}");
}
}
public void SingleReaderSingleUpdater1()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
session.Commit();
}
UInt64 id;
using (SessionNoServer session = new SessionNoServer(systemDir, 5000))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
id = man.Id;
using (SessionNoServer session2 = new SessionNoServer(systemDir))
{
session2.BeginRead();
Man man2 = (Man)session2.Open(id);
Assert.Null(man2);
session2.Commit();
}
session.Commit();
}
}
public void UnpersistCompareFields(int bTreeDatabaseNumber)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
BTreeSet <Person> bTree = (BTreeSet <Person>)session.Open(Oid.Encode((uint)bTreeDatabaseNumber, 1, 1));
BTreeSetIterator <Person> itr = bTree.Iterator();
itr.GoToLast();
itr.Remove();
session.Abort();
session.BeginUpdate();
bTree = (BTreeSet <Person>)session.Open(Oid.Encode((uint)bTreeDatabaseNumber, 1, 1));
bTree.Unpersist(session);
session.Commit();
session.BeginRead();
Database db = session.OpenDatabase((uint)bTreeDatabaseNumber, false);
foreach (Page page in db)
{
foreach (OptimizedPersistable obj in page)
{
if (obj.PageNumber > 0)
{
Assert.Fail("No objects should remain in this database");
}
}
}
session.Commit();
}
}
public void LookupCompareFields(int bTreeDatabaseNumber)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Person personPrior = null, person;
session.BeginRead();
BTreeSet <Person> bTree = (BTreeSet <Person>)session.Open(Oid.Encode((uint)bTreeDatabaseNumber, 1, 1));
BTreeSetIterator <Person> itr = bTree.Iterator();
int ct = 0;
while ((person = itr.Next()) != null)
{
if (personPrior != null)
{
Assert.LessOrEqual(personPrior.FirstName, person.FirstName);
}
ct++;
personPrior = person;
}
int ct2 = 0;
personPrior = null;
foreach (Person pers in (IEnumerable <Person>)bTree)
{
if (personPrior != null)
{
Assert.LessOrEqual(personPrior.FirstName, pers.FirstName);
}
ct2++;
personPrior = pers;
}
session.Commit();
Assert.AreEqual(ct, ct2);
}
}
private void LoadByDynamicQuery()
{
using (SessionNoServer session = new SessionNoServer(SystemDir))
{
Console.WriteLine("\nDynamic Query");
session.BeginRead();
// Query on the Dynamic Property, Iterates over AllObjects<T>
// Note: This will throw an Exception if FirstName and LastName are not both defined on every DynamicDictionary.
dynamic dynamicQuery1 =
session.AllObjects <DynamicDictionary>()
.FirstOrDefault(x => x["FirstName"] == "Ellen" && x["LastName"] == "Adams");
// Avoids Exception but still Iterates over AllObjects<T>
dynamic dynamicQuery2 =
session.AllObjects <DynamicDictionary>()
.FirstOrDefault((x) =>
{
dynamic dynX = x;
return(dynX.ContainsProperty("FirstName") && dynX.ContainsProperty("LastName") &&
dynX.FirstName == "John" && dynX.LastName == "Doe");
});
// Dynamic Query Asserts
AssertPerson(dynamicQuery1);
AssertPerson2(dynamicQuery2);
}
}
public void CreateCompareStruct(int number)
{
Oid id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Placement place = new Placement((UInt32)number, 1, 1, UInt16.MaxValue, UInt16.MaxValue);
session.BeginUpdate();
BTreeSetOidShort <Oid> bTree = new BTreeSetOidShort <Oid>(null, session);
bTree.Persist(place, session);
id = bTree.Oid;
for (int i = 0; i < number; i++)
{
bTree.Add(new Oid((ulong)i));
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeSetOidShort <Oid> bTree = (BTreeSetOidShort <Oid>)session.Open(id);
int count = 0;
int prior = 0;
foreach (Oid oid in bTree)
{
count++;
Assert.True(oid.Id == (ulong)prior++);
}
Assert.True(number == count);
session.Commit();
}
}
public void LocalDateTest()
{
LocalDate d1 = new LocalDate(2016, 1, 10);
LocalDate d2 = new LocalDate(2016, 1, 1);
LocalDate d1other = new LocalDate(2016, 1, 10);
Assert.AreNotEqual(d1, d2);
Assert.AreEqual(d1, d1other);
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
LocalDateField test1 = new LocalDateField("def", d1);
session.Persist(test1);
LocalDateField test = new LocalDateField("abc", d2);
session.Persist(test);
var result1 = session.AllObjects<LocalDateField>().First(t => t.Field2.Equals(d2)); // this works
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
var result2 = session.AllObjects<LocalDateField>().First(t =>
{
var l = t.Field2;
return l.Equals(d2);
}); // this should work and doesnt
session.Commit();
}
}
public void AutoPlacementDbRollover(int howMany)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
FourPerPage f;
for (UInt64 i = 0; i < 1000000; i++)
{
f = new FourPerPage(i);
session.Persist(f);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
UInt32 dbNum = session.DatabaseNumberOf(typeof(FourPerPage));
Database db = session.OpenDatabase(dbNum);
int ct = 0;
foreach (FourPerPage f in db.AllObjects <FourPerPage>())
{
ct++;
}
Assert.AreEqual(ct, howMany);
session.Commit();
}
}
public void DictionaryTest()
{
ulong id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
Dictionary <string, int> dict = new Dictionary <string, int>();
dict.Add("Mats", 52);
dict.Add("Robin", 16);
dict.Add("Kinga", 53);
id = session.Persist(dict);
var comp = dict.Comparer;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
object dictObj = session.Open(id);
Dictionary <string, int> dict = (Dictionary <string, int>)dictObj;
var comp = dict.Comparer;
if (dict["Mats"] != 52)
{
throw new Exception("failed");
}
session.Commit();
}
}
public void VelocityDB_SaveKunde_Test()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
try
{
session.BeginUpdate();
var kunde = new KundeVelocityDB();
kunde.Kto = "4711";
kunde.KtoFoerderer = "4712";
kunde.Periode = 2016006;
session.Persist(kunde);
session.Commit();
}
catch (Exception e)
{
session.Abort();
}
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
var kunden = session.AllObjects <KundeVelocityDB>();
var query = from k in kunden
where k.Kto.Contains("4711")
select k;
Assert.AreEqual("4711", query.First()?.Kto);
Assert.AreEqual("4712", query.First()?.KtoFoerderer);
Assert.AreEqual(2016006, query.First()?.Periode);
}
}
public City City(string name)
{
using (SessionNoServer session = new SessionNoServer(SystemDir))
{
session.BeginRead();
return(session.AllObjects <City>().SingleOrDefault(c => c.Name.Equals(name)));
}
}
public void SortedObjectsSample()
{
Oid bTreeId;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
const UInt32 numberOfPersons = 100000;
const ushort nodeMaxSize = 5000;
const ushort comparisonByteArraySize = sizeof(UInt64); // enough room to hold entire idNumber of a Person
const bool comparisonArrayIsCompleteKey = true;
const bool addIdCompareIfEqual = false;
VelocityDbSchema.Samples.AllSupportedSample.Person person;
session.BeginUpdate();
//mySession.SetTraceAllDbActivity();
CompareByField <VelocityDbSchema.Samples.AllSupportedSample.Person> compareByField = new CompareByField <VelocityDbSchema.Samples.AllSupportedSample.Person>("m_idNumber", session, addIdCompareIfEqual);
BTreeSet <VelocityDbSchema.Samples.AllSupportedSample.Person> bTree = new BTreeSet <VelocityDbSchema.Samples.AllSupportedSample.Person>(compareByField, session, nodeMaxSize, comparisonByteArraySize, comparisonArrayIsCompleteKey);
session.Persist(bTree); // Persist the root of the BTree so that we have something persisted that can be flushed to disk if memory available becomes low
for (int i = 0; i < numberOfPersons; i++)
{
person = new VelocityDbSchema.Samples.AllSupportedSample.Person();
session.Persist(person);
bTree.Add(person);
}
bTreeId = bTree.Oid;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
BTreeSet <VelocityDbSchema.Samples.AllSupportedSample.Person> bTree = (BTreeSet <VelocityDbSchema.Samples.AllSupportedSample.Person>)session.Open(bTreeId);
foreach (VelocityDbSchema.Samples.AllSupportedSample.Person person in (IEnumerable <VelocityDbSchema.Samples.AllSupportedSample.Person>)bTree)
{
if (person.IdNumber > 196988888791402)
{
Console.WriteLine(person);
break;
}
}
session.Commit();
session.BeginRead();
// this LINQ statement will trigger a binary search lookup (not a linear serach) of the matching Person objects in the BTreeSet
Console.WriteLine((from person in bTree where person.IdNumber > 196988888791402 select person).First());
session.Commit();
}
}
public void Verify(string dir)
{
using (SessionNoServer session = new SessionNoServer(dir))
{
session.BeginRead();
session.Verify();
session.Commit();
}
}
public void VerifyOpenIssueTracker()
{
using (SessionNoServer session = new SessionNoServer(systemDir, 2000, true, true))
{
session.BeginRead();
IssueTracker issueTracker = session.AllObjects <IssueTracker>(false).FirstOrDefault();
session.Commit();
}
}
public void Verify(string dir)
{
using (SessionNoServer session = new SessionNoServer(dir))
{
session.BeginRead();
session.Verify();
session.Commit();
}
}
public void VerifyOpenIssueTracker()
{
using (SessionNoServer session = new SessionNoServer(systemDir, 2000, true, true))
{
session.BeginRead();
IssueTracker issueTracker = (IssueTracker)session.Open(IssueTracker.PlaceInDatabase, 1, 1, false);
session.Commit();
}
}
public void CsvExport()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.Compact();
session.BeginRead();
session.ExportToCSV(csvExportDir);
session.Commit();
}
}
public MitchellClaimType ReadClaim(string claimNumber)
{
using (SessionBase session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var claim = ReadClaim(claimNumber, session);
session.Commit();
return(claim);
}
}
public IList <MitchellClaimType> FindClaims(DateTime lossDateFrom, DateTime lossDateTo)
{
using (SessionBase session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var e = (from c in session.AllObjects <MitchellClaimType>() where c.LossDate >= lossDateFrom && c.LossDate <= lossDateTo select c).ToList();
session.Commit();
return(e);
}
}
public void CsvExport()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.Compact();
session.BeginRead();
session.ExportToCSV(csvExportDir);
session.Commit();
}
}
/// <summary>
/// Get a list of all <see cref="Database"/> used.
/// </summary>
/// <param name="path">Path to database directory on server relative to server setting <see cref="SessionBase.BaseDatabasePath"/></param>
/// <returns>All databases in use</returns>
public IEnumerable<string> Get(string path)
{
using (SessionNoServer session = new SessionNoServer(path))
{
session.BeginRead();
List<Database> dbList = session.OpenAllDatabases();
foreach (Database db in dbList)
yield return db.ToString();
session.Commit();
}
}
// GET api/database/suppliertracking/15
public string Get(string path, UInt32 id)
{
using (SessionNoServer session = new SessionNoServer(path))
{
session.BeginRead();
Database db = session.OpenDatabase(id);
string dbName = db.ToString();
session.Commit();
return dbName;
}
}
public void OneMillionFindSingleRecordInTheMiddle()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
var result = (from ComputerFileData computerFileData in session.AllObjects <ComputerFileData>()
where computerFileData.FileID == 500000
select computerFileData).First();
session.Commit();
}
}
public void OneMillionFindSingleRecordInTheMiddle()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
var result = (from ComputerFileData computerFileData in session.AllObjects<ComputerFileData>()
where computerFileData.FileID == 500000
select computerFileData).First();
session.Commit();
}
}
public string Get(string path, int id = 0)
{
using (SessionNoServer session = new SessionNoServer(path))
{
session.BeginRead();
Graph graph = Graph.Open(session, id);
using (MemoryStream ms = new MemoryStream())
{
graph.ExportToGraphJson(ms);
session.Commit();
return Encoding.UTF8.GetString(ms.ToArray());
}
}
}
/// <summary>
/// Get the names of all persitent types used.
/// </summary>
/// <param name="path">Path to database directory on server relativer to server setting <see cref="SessionBase.BaseDatabasePath"/></param>
/// <returns>All type names registered in the database schema</returns>
public IEnumerable<string> Get(string path)
{
using (SessionNoServer session = new SessionNoServer(path))
{
session.BeginRead();
Database db = session.OpenDatabase(1);
var e = db.AllObjects<VelocityDbType>(false);
var types = session.ExportToJson<VelocityDbType>(false, false);
List<string> stringList = new List<String>();
foreach (VelocityDbType t in e)
yield return t.Type.ToGenericTypeString();
session.Commit();
}
}
public string Get(string path, UInt64 id)
{
using (SessionNoServer session = new SessionNoServer(path))
{
session.BeginRead();
object obj = session.Open(id);
JsonSerializerSettings jsonSettings = new JsonSerializerSettings();
jsonSettings.TypeNameAssemblyFormat = System.Runtime.Serialization.Formatters.FormatterAssemblyStyle.Full;
jsonSettings.TypeNameHandling = TypeNameHandling.All;
jsonSettings.PreserveReferencesHandling = PreserveReferencesHandling.Objects;
jsonSettings.ContractResolver = new FieldsOnlyContractResolver();
string json = JsonConvert.SerializeObject(obj, jsonSettings);
session.Commit();
return json;
}
}
private void Button_Click(object sender, RoutedEventArgs e)
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
const UInt32 numberOfPersons = 10000;
const ushort nodeMaxSize = 5000;
const ushort comparisonByteArraySize = sizeof(UInt64); // enough room to hold entire idNumber of a Person
const bool comparisonArrayIsCompleteKey = true;
const bool addIdCompareIfEqual = false;
Person person;
session.BeginUpdate();
session.DefaultDatabaseLocation().CompressPages = PageInfo.compressionKind.None;
//mySession.SetTraceAllDbActivity();
BTreeSet<string> stringSet = new BTreeSet<string>(null, session);
BTreeSetOidShort<string> stringSetShort = new BTreeSetOidShort<string>(null, session);
BTreeMap<string, string> stringMap = new BTreeMap<string, string>(null, session);
BTreeMapOidShort<string, string> stringMapShort = new BTreeMapOidShort<string, string>(null, session);
CompareByField<Person> compareByField = new CompareByField<Person>("idNumber", session, addIdCompareIfEqual);
BTreeSet<Person> bTree = new BTreeSet<Person>(compareByField, session, nodeMaxSize, comparisonByteArraySize, comparisonArrayIsCompleteKey);
session.Persist(bTree); // Persist the root of the BTree so that we have something persisted that can be flushed to disk if memory available becomes low
for (int i = 0; i < numberOfPersons; i++)
{
person = new Person();
// session.Persist(person);
bTree.AddFast(person);
}
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.UseExternalStorageApi = true;
session.BeginRead();
BTreeSet<Person> bTree = session.AllObjects<BTreeSet<Person>>().First();
foreach (Person person in (IEnumerable<Person>)bTree)
{
if (person.IdNumber > 196988888791402)
{
Console.WriteLine(person);
break;
}
}
session.Commit();
}
}
static int Main(string[] args)
{
UInt64 id;
AllSupported allSupported, allSupported2;
AllSuportedSub4 sub4;
try
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
session.BeginUpdate();
File.Copy(s_licenseDbFile, Path.Combine(session.SystemDirectory, "4.odb"), true);
sub4 = new AllSuportedSub4();
session.Persist(sub4);
id = sub4.Id;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
sub4 = (AllSuportedSub4)session.Open(id);
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginUpdate();
allSupported = new AllSupported(3);
session.Persist(allSupported);
id = allSupported.Id;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
allSupported2 = (AllSupported)session.Open(id);
session.Commit();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return 1;
}
return 0;
}
static void Main(string[] args)
{
try
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
DatabaseLocation localLocation = new DatabaseLocation(Dns.GetHostName(), Path.Combine(session.SystemDirectory, "desEncryptedLocation"), desEncryptedStartDatabaseNumber, UInt32.MaxValue,
session, PageInfo.compressionKind.LZ4, PageInfo.encryptionKind.desEncrypted);
session.BeginUpdate();
session.NewLocation(localLocation);
localLocation.DesKey = SessionBase.TextEncoding.GetBytes("5d9nndwy"); // Des keys are 8 bytes long
Person robinHood = new Person("Robin", "Hood", 30);
Person billGates = new Person("Bill", "Gates", 56, robinHood);
Person steveJobs = new Person("Steve", "Jobs", 56, billGates);
robinHood.BestFriend = billGates;
session.Persist(steveJobs);
steveJobs.Friends.Add(billGates);
steveJobs.Friends.Add(robinHood);
billGates.Friends.Add(billGates);
robinHood.Friends.Add(steveJobs);
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{ // Des keys are not persisted in DatabaseLocation (for safety). Instead they are stored as *.des files
// in the users document directory of the user that created the DatabaseLocation. These files can be copied
// to other user's document directory when acccess is desired for other users.
// Path to user document dir is given by C#: Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
session.BeginRead();
var allPersonsEnum = session.AllObjects<Person>();
foreach (Person obj in allPersonsEnum)
{
Person person = obj as Person;
if (person != null)
Console.WriteLine(person.FirstName);
}
session.Commit();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void LargeObject()
{
// max length of an array is int.MaxValue, objects on a page are serialized to a single byte[] so this array must have a length < int.MaxValue
UInt64 id;
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginUpdate();
var large = new LargeObject((int) Math.Pow(2, 25)); // Math.Pow(2, 27) too large to handle with ToBase64String for csv export
id = session.Persist(large);
Assert.True(large.IsOK());
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var large = session.Open<LargeObject>(id);
Assert.True(large.IsOK());
session.Commit();
}
}
public void ListWrapperTest()
{
// max length of an array is int.MaxValue, objects on a page are serialized to a single byte[] so this array must have a length < int.MaxValue
UInt64 id;
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginUpdate();
var f = new FourPerPage(1);
id = session.Persist(f);
Assert.True(f.IsOK());
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var f = session.Open<FourPerPage>(id);
Assert.True(f.IsOK());
session.Commit();
}
}
public void LazyLoadDepth()
{
UInt64 id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
LazyLoadByDepth lazy = null;
for (uint i = 1; i <= 100; i++)
lazy = new LazyLoadByDepth(i, lazy);
session.Persist(lazy);
id = lazy.Id;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
UInt32 ct = 100;
session.BeginRead();
LazyLoadByDepth lazy = (LazyLoadByDepth)session.Open(id, false, false, 0); // load only the root of the object graph
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
session.Commit();
}
}
public void LazyLoadProperty()
{
UInt64 id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
LazyLoadPropertyClass lazy = null;
for (uint i = 1; i <= 10000; i++)
lazy = new LazyLoadPropertyClass(i, lazy);
session.Persist(lazy);
id = lazy.Id;
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(systemDir))
{
UInt32 ct = 10000;
session.BeginRead();
LazyLoadPropertyClass lazy = (LazyLoadPropertyClass)session.Open(id);
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
lazy = lazy.MyRef;
Assert.AreEqual(ct--, lazy.MyCt);
Assert.IsNull(lazy.MyRefPeek);
Assert.NotNull(lazy.MyRef);
Assert.NotNull(lazy.MyRefPeek);
session.Commit();
}
}
public void TooLargeObject()
{
Assert.Throws<OverflowException>(() =>
{
UInt64 id;
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginUpdate();
var large = new LargeObject((int)Math.Pow(2, 28));
id = session.Persist(large);
Assert.True(large.IsOK());
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var large = session.Open<LargeObject>(id);
Assert.True(large.IsOK());
session.Commit();
}
});
}
public void QuerySomeBicycles()
{
try
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
Database db = session.OpenDatabase(session.DatabaseNumberOf(typeof(Bicycle)));
Bicycle b1 = db.AllObjects<Bicycle>().ElementAt(50005);
Bicycle b2 = db.AllObjects<Bicycle>().ElementAt<Bicycle>(50005);
if (b1 != b2)
throw new UnexpectedException("b1 != b2");
var src = from Bicycle bike in db.AllObjects<Bicycle>() where bike.Color == "blue" select bike;
foreach (Bicycle bike in src)
Console.WriteLine(bike.ToStringDetails(session));
session.Commit();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
}
}
public void SingleReaderSingleUpdater2()
{
UInt64 id;
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginUpdate();
Man man = new Man();
man.Persist(session, man);
id = man.Id;
session.Commit();
session.BeginUpdate();
man.Age = ++man.Age;
using (SessionNoServer session2 = new SessionNoServer(systemDir))
{
session2.BeginRead();
Man man2 = (Man)session2.Open(id);
Assert.Less(man2.Age, man.Age);
session2.Commit();
}
session.Commit();
}
System.GC.Collect();
}
public void HashSetAddNonPersisted()
{
UInt64 id;
Person person = null;
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginUpdate();
var hashSet = new HashSet<Person>();
for (int i = 0; i < 100; i++)
{
var p = new Person();
session.Persist(p);
hashSet.Add(p);
if (i == 47)
{
person = p;
Assert.IsFalse(hashSet.Add(person));
}
}
id = session.Persist(hashSet);
Assert.IsTrue(hashSet.Contains(person));
session.Commit();
}
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
var hashSet = session.Open<HashSet<Person>>(id);
Assert.AreEqual(100, hashSet.Count);
int ct = 0;
foreach (Person p in hashSet)
ct++;
Assert.IsTrue(hashSet.Contains(person));
Assert.IsFalse(hashSet.Add(person));
Assert.AreEqual(100, ct);
session.Commit();
}
}
protected void ForgotPasswordLinkButton_Click(object sender, EventArgs e)
{
try
{
using (SessionNoServer session = new SessionNoServer(dataPath, 2000, true, true))
{
session.BeginRead();
Root root = (Root)session.Open(Root.PlaceInDatabase, 1, 1, false);
if (root == null)
{
ErrorMessage.Text = "The entered email address is not registered with this website";
session.Abort();
return;
}
CustomerContact lookup = new CustomerContact(Email.Text, null);
if (!root.customersByEmail.TryGetKey(lookup, ref lookup))
{
ErrorMessage.Text = "The entered email address is not registered with this website";
session.Abort();
return;
}
session.Commit();
MailMessage message = new MailMessage("*****@*****.**", Email.Text);
message.Subject = "Your password to VelocityWeb";
message.Body = "Password is: " + lookup.password;
SmtpClient client = new SmtpClient("smtpout.secureserver.net", 80);
System.Net.NetworkCredential SMTPUserInfo = new System.Net.NetworkCredential("*****@*****.**", "xxxx");
client.Credentials = SMTPUserInfo;
client.Send(message);
ErrorMessage.Text = "Email with your password was send to: " + Email.Text;
}
}
catch (System.Exception ex)
{
ErrorMessage.Text = ex.ToString();
}
}
static void Retrieve()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
session.BeginRead();
// get all companies from database
IEnumerable<Company> companies = session.AllObjects<Company>();
// get all employees that FirstName contains "John"
IEnumerable<Employee> employees = session.AllObjects<Employee>();
var query = from Employee emp in employees
where emp.FirstName.Contains("John")
select emp;
foreach (Employee emp in query)
{
//do something with employee
emp.ToString();
}
// get all Employees that are over 30 years old and are from Berlin:
var query2 = from Employee emp in employees
where emp.Age > 30 && emp.City == "Berlin"
select emp;
foreach (Employee emp in query2)
{
//do something with employee
emp.ToString();
}
// get all Employees that work at "MyCompany" company:
var query3 = from Employee emp in employees
where emp.Employer.Name == "MyCompany"
select new { emp.FirstName, emp.LastName };
session.Commit();
}
}
static readonly string s_systemDir = "WorldCities"; // appended to SessionBase.BaseDatabasePath
public MainWindow()
{
InitializeComponent();
errorMessage.Content = null;
try
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
try
{
session.BeginRead();
loadCities(session);
session.Commit();
}
catch (SystemDatabaseNotFoundWithReadonlyTransactionException)
{
}
}
}
catch (Exception ex)
{
errorMessage.Content = ex.Message == null ? ex.ToString() : ex.Message;
}
}
public void aSyncNewDatabases()
{
using (SessionBase session = new SessionNoServer(s_sync1))
{
session.EnableSyncByTrackingChanges = true;
using (var trans = session.BeginUpdate())
{
for (uint i = 10; i < 50; i++)
{
var database = session.NewDatabase(i);
Assert.NotNull(database);
}
session.Commit();
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
updateSession.SyncWith(readFromSession);
}
}
using (SessionBase readFromSession = new SessionNoServer(s_sync1))
{
readFromSession.BeginRead();
using (SessionBase updateSession = new SessionNoServer(s_sync2))
{
using (var trans = updateSession.BeginRead())
{
Assert.AreEqual(updateSession.OpenAllDatabases().Count, readFromSession.OpenAllDatabases().Count - 1); // - 1 due to additional change tracking databases in original
}
}
}
}
// Queries
public void doQueries()
{
using (SessionNoServer session = new SessionNoServer(s_systemDir))
{
session.BeginRead();
Graph g = Graph.Open(session); // it takes a while to open graph fresh from databases
VertexType userType = g.FindVertexType("User");
EdgeType friendEdgeType = g.FindEdgeType("Friend");
PropertyType countryProperty = userType.FindProperty("country");
PropertyType incomeProperty = userType.FindProperty("income");
PropertyType friendshipStartProperty = friendEdgeType.FindProperty("start");
Vertex someUser = userType.GetVertex(1);
Vertex someUser2 = userType.GetVertex(12282);
var someUserFriends = from Edge e in someUser.GetEdges(friendEdgeType, Direction.Out)
select e.Head;
var someUser3LevelNetwork = someUser.Traverse(3, true, Direction.Out);
HashSet<Edge> edges = new HashSet<Edge>();
Edge edge = (Edge)someUser.GetEdges(friendEdgeType, Direction.Out).Skip(1).First();
edges.Add(edge);
HashSet<EdgeType> edgeTypesToTraverse = new HashSet<EdgeType>();
edgeTypesToTraverse.Add(friendEdgeType);
// Find Shortest path between two given user ids
List<List<Edge>> path = someUser.Traverse(4, false, Direction.Out, someUser2, edgeTypesToTraverse);
Debug.Assert(path.Count > 0);
var path2 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(41), edgeTypesToTraverse);
HashSet<Vertex> vertices = new HashSet<Vertex>();
vertices.Add(someUser2);
var path3 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, vertices); // path must include vertices
var path3b = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, vertices); // path must NOT include vertices
var path3c = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, edges); // path must include edges
var path3d = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges); // path must NOT include edges
HashSet<PropertyType> vertexPropertyTypes = new HashSet<PropertyType>();
vertexPropertyTypes.Add(incomeProperty);
vertexPropertyTypes.Add(countryProperty);
var path3e = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, vertexPropertyTypes); // path must NOT include edges and at least one vertex in path must have property in propertyTypes
var path3f = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, null, vertexPropertyTypes); // path must NOT include edges and no vertex in path must have any property in propertyTypes
HashSet<PropertyType> edgePropertyTypes = new HashSet<PropertyType>();
edgePropertyTypes.Add(friendshipStartProperty);
var path3g = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, null, null, edgePropertyTypes);
var path3h = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, null, null, null, edgePropertyTypes);
var path3i = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, null, null, null, null, p => { object pv = p.GetProperty(countryProperty); return pv != null && pv.Equals("Sweden"); });
var path3j = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(9465810), edgeTypesToTraverse, null, null, null, null, null, edges, null, null, null, null, null, p => { DateTime? pv = (DateTime?)p.GetProperty(friendshipStartProperty); return pv != null && pv.Value.CompareTo(DateTime.Now) > 0; });
var path4 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(2798), edgeTypesToTraverse);
var path5 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(175), edgeTypesToTraverse);
var path6 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(1531), edgeTypesToTraverse);
var path7 = someUser.Traverse(4, false, Direction.Out, userType.GetVertex(1537), edgeTypesToTraverse);
Console.WriteLine();
// Get all the paths between two user ids
var path8 = someUser.Traverse(4, true, Direction.Out, someUser2, edgeTypesToTraverse);
path = someUser.Traverse(4, true, Direction.Out, userType.GetVertex(41), edgeTypesToTraverse);
// Get the number of unique 2nd level friends a given user has (friends of my friends)
var someUsers2ndLevelFriends = (from v in someUserFriends
from Edge e in v.GetEdges(friendEdgeType, Direction.Out)
select e.Head).Distinct();
Console.WriteLine("unique 2nd level friends a given user has");
int ct = 0;
foreach (Vertex v in someUsers2ndLevelFriends)
{
if (++ct % 100 == 0)
Console.WriteLine("User id: " + v.VertexId);
}
Console.WriteLine("Some user has: " + ct + " 2nd level friends");
Console.WriteLine();
// Get the top 10 users with most friends
var top10mostFriends = from vertex in userType.GetTopNumberOfEdges(friendEdgeType, 10, Direction.Out)
select vertex;
Console.WriteLine("top 10 users with most friends");
foreach (Vertex v in top10mostFriends)
{
long count = v.GetNumberOfEdges(friendEdgeType, Direction.Out);
Console.WriteLine("User id: " + v.VertexId + "\t number of friends: " + count);
}
Console.WriteLine();
session.Commit();
}
}
static void QueryGraph()
{
using (SessionNoServer session = new SessionNoServer(systemDir))
{
// Start a read only transaction
session.BeginRead();
Graph g = Graph.Open(session);
// Cache SCHEMA
VertexType movieType = g.FindVertexType("Movie");
PropertyType movieTitleType = movieType.FindProperty("title");
VertexType actorType = g.FindVertexType("Actor");
PropertyType actorNameType = actorType.FindProperty("name");
// How many vertices do we have?
Console.WriteLine("Number of Vertices: " + g.CountVertices());
// Find a movie by name
Vertex movie = movieTitleType.GetPropertyVertex("The Matrix");
// Get all actors
var actors = actorType.GetVertices();
// Count the actors
int actorCount = actors.Count();
Console.WriteLine("Number of Actors: " + actorCount);
// Get only the actors whose names end with “s”
foreach (Vertex vertex in actors)
{
string actorName = (string) actorNameType.GetPropertyValue(vertex.VertexId);
if (actorName.EndsWith("s"))
Console.WriteLine("Found actor with name ending with \"s\" " + actorName);
}
// Get a count of property types
var properties = session.AllObjects<PropertyType>();
Console.WriteLine("Number of Property types: " + properties.Count());
// All vertices and their edges
var edges = g.GetEdges();
int edgeCount = edges.Count();
session.Commit();
}
}