C# SessionNoServer.Abort方法代码示例

    static readonly string systemDir = "QuickStart"; // appended to SessionBase.BaseDatabasePath

    static int Main(string[] args)
    {
      using (SessionNoServer session = new SessionNoServer(systemDir))
      {
        Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
        try
        {
          session.BeginUpdate();
          Company company = new Company();
          company.Name = "MyCompany";
          session.Persist(company);
          Employee employee1 = new Employee();
          employee1.Employer = company;
          employee1.FirstName = "John";
          employee1.LastName = "Walter";
          session.Persist(employee1);
          session.Commit();
        }
        catch (Exception ex)
        {
          Trace.WriteLine(ex.Message);
          session.Abort();
        }
      }
      Retrieve();
      return 0;
    }

 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 protected]", 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("[email protected]", "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();
   }
 }

 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();
   }
 }

 protected void LoginButton_Click(object sender, EventArgs e)
 {
   if (Password.Text.Length == 0)
   {
     ErrorMessage.Text = "Enter your password.";
     return;
   }
   try
   {
     using (SessionNoServer session = new SessionNoServer(dataPath, 2000, true, true))
     {
       session.BeginUpdate();
       Root velocityDbroot = (Root)session.Open(Root.PlaceInDatabase, 1, 1, false);
       if (velocityDbroot == null)
       {
         ErrorMessage.Text = "The entered email address is not registered with this website";
         session.Abort();
         return;
       }
       CustomerContact lookup = new CustomerContact(Email.Text, null);
       if (!velocityDbroot.customersByEmail.TryGetKey(lookup, ref lookup))
       {
         ErrorMessage.Text = "The entered email address is not registered with this website";
         session.Abort();
         return;
       }
       if (lookup.password != Password.Text)
       {
         ErrorMessage.Text = "The entered password does not match the registered password";
         session.Abort();
         return;
       }
       session.Commit();
       Session["UserName"] = lookup.UserName;
       Session["Email"] = Email.Text;
       Session["FirstName"] = lookup.FirstName;
       Session["LastName"] = lookup.LastName;
       FormsAuthentication.RedirectFromLoginPage(Email.Text, false);
     }
   }
   catch (System.Exception ex)
   {
     ErrorMessage.Text = ex.ToString() + ex.Message;
   }
 }

 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());
     }
   }
 }

 public static void ImprortImdb(string systemDir)
 {
   ImdbImport imdbImport = new ImdbImport();
   using (SessionNoServer session = new SessionNoServer(systemDir))
   {
     try
     {
       session.BeginUpdate();
       File.Copy(s_licenseDbFile, Path.Combine(session.SystemDirectory, "4.odb"), true);
       ImdbRoot imdbRoot = new ImdbRoot(session);
       session.Persist(imdbRoot);
       imdbImport.ParseActors(session, imdbRoot);
       imdbImport.ParseActresses(session, imdbRoot);
       foreach (ActingPerson acting in imdbRoot.ActorSet)
         if (!imdbRoot.ActingByNameSet.Add(acting))
           Console.WriteLine("Dublicate ActingPerson found (in ActorSet): " + acting.Name);          
       foreach (ActingPerson acting in imdbRoot.ActressSet)
         if (!imdbRoot.ActingByNameSet.Add(acting))
           Console.WriteLine("Dublicate ActingPerson found (in ActressSet): " + acting.Name);
       session.Commit();
     }
     catch (Exception e)
     {
       session.Abort();
       Console.WriteLine(e.ToString());
     }
   }
 }

    public void Create1Vertices(bool vertexIdSetPerVertexType)
    {
      DataCache.MaximumMemoryUse = 10000000000; // 10 GB
      bool dirExist = Directory.Exists(systemDir);
      try
      {
        if (Directory.Exists(systemDir))
          Directory.Delete(systemDir, true); // remove systemDir from prior runs and all its databases.
        Directory.CreateDirectory(systemDir);
        File.Copy(licenseDbFile, Path.Combine(systemDir, "4.odb"));
      }
      catch
      {
        File.Copy(licenseDbFile, Path.Combine(systemDir, "4.odb"));
      }

      using (SessionNoServer session = new SessionNoServer(systemDir, 5000, false, true))
      {
        session.BeginUpdate();
        Graph g = new Graph(session, vertexIdSetPerVertexType);
        session.Persist(g);
        VertexType userType = g.NewVertexType("User");
        VertexType otherType = g.NewVertexType("Other");
        PropertyType userNamePropertyType = g.NewVertexProperty(userType, "NAME", DataType.String, PropertyKind.Indexed);
        VertexType powerUserType = g.NewVertexType("PowerUser", userType);
        EdgeType userFriendEdgeType = g.NewEdgeType("Friend", true, userType, userType);
        EdgeType userBestFriendEdgeType = g.NewEdgeType("Best Friend", true, userType, userType, userFriendEdgeType);
        EdgeType otherEdgeType = g.NewEdgeType("Other", true, userType, userType);
        PropertyType bestFriendPropertyType = g.NewEdgeProperty(userFriendEdgeType, "START", DataType.DateTime, PropertyKind.Indexed);
        Vertex kinga = userType.NewVertex();
        Vertex robin = userType.NewVertex();
        Vertex mats = powerUserType.NewVertex();
        Vertex chiran = powerUserType.NewVertex();
        Vertex other = otherType.NewVertex();
        Edge bestFriend = kinga.AddEdge(userBestFriendEdgeType, robin);
        Edge otherEdge = kinga.AddEdge(otherEdgeType, robin);
        DateTime now = DateTime.UtcNow;
        mats.SetProperty("Address", 1);
        bestFriend.SetProperty(bestFriendPropertyType, now);
        kinga.SetProperty(userNamePropertyType, "Kinga");
        if (g.VertexIdSetPerType == false)
          mats.SetProperty(userNamePropertyType, "Mats");
        else
        {
          try
          {
            mats.SetProperty(userNamePropertyType, "Mats");
            Assert.Fail("Invalid property for VertexType not handled");
          }
          catch (Exception)
          {
          }
        }
        try
        {
          other.SetProperty(userNamePropertyType, "Mats");
          Assert.Fail("Invalid property for VertexType not handled");
        }
        catch (Exception)
        {
        }       
        try
        {
          otherEdge.SetProperty(bestFriendPropertyType, now);
          Assert.Fail("Invalid property for VertexType not handled");
        }
        catch (Exception)
        {
        }
        Vertex findMats = userNamePropertyType.GetPropertyVertex("Mats", true);
        var list = userNamePropertyType.GetPropertyVertices("Mats", true).ToList();
        //Edge findWhen = bestFriendPropertyType.GetPropertyEdge(now);
        //var list2 = bestFriendPropertyType.GetPropertyEdges(now);
        Console.WriteLine(findMats);
       // session.Commit();
       // session.BeginRead();
        PropertyType adressProperty = g.FindVertexProperty(powerUserType, "Address");
        Vertex find1 = adressProperty.GetPropertyVertex(1, true);
        session.Abort();
        /*session.BeginUpdate();
        g.Unpersist(session);
        session.Commit();
        dirExist = Directory.Exists(systemDir);
        try
        {
          if (Directory.Exists(systemDir))
            Directory.Delete(systemDir, true); // remove systemDir from prior runs and all its databases.
          Directory.CreateDirectory(systemDir);
          File.Copy(licenseDbFile, Path.Combine(systemDir, "4.odb"));
        }
        catch
        {
          File.Copy(licenseDbFile, Path.Combine(systemDir, "4.odb"));
        }*/

      }

      using (SessionNoServer session = new SessionNoServer(systemDir, 5000, false, true))
      {
        session.BeginUpdate();
//.........这里部分代码省略.........

//.........这里部分代码省略.........
        }
        using (SessionNoServer session = new SessionNoServer(s_systemDir))
        {
          session.BeginRead();
          Console.WriteLine("Blue Cars");
          BTreeSet<Car> bTree = session.Index<Car>("color");
          foreach (Car c in (from aCar in bTree where aCar.Color == "Blue" select aCar))
            Console.WriteLine(c.ToStringDetails(session));
          Console.WriteLine("Cars in fuel efficiency order");
          foreach (Car c in session.Index<Car>("litresPer100Kilometers"))
            Console.WriteLine(c.ToStringDetails(session));
          Console.WriteLine("Vehicles ordered modelYear, brandName, modelName, color");
          foreach (Vehicle v in session.Index<Vehicle>())
            Console.WriteLine(v.ToStringDetails(session));
          session.Commit();
        }
        using (SessionNoServer session = new SessionNoServer(s_systemDir))
        {
          session.TraceIndexUsage = true;
          session.BeginUpdate();
          // these LINQ statements will trigger a binary search lookup (not a linear search) of the matching Car objects in the BTreeSet
          Car c = (from aCar in session.Index<Car>("color") where aCar.Color == "Blue" select aCar).First();
          c.Color = "Green";
          session.Commit();
        }
        using (SessionNoServer session = new SessionNoServer(s_systemDir))
        {
          session.TraceIndexUsage = true;
          session.BeginUpdate();
          // these LINQ statements will trigger a binary search lookup (not a linear search) of the matching Car objects in the BTreeSet
          Car c = (from aCar in session.Index<Car>("color") where aCar.Color == "Green" select aCar).First();
          UInt64 id = c.Id;
          session.DeleteObject(id);
          session.Abort();
          session.BeginUpdate();
          session.DeleteObject(id);
          session.Commit();
        }
        using (SessionNoServer session = new SessionNoServer(s_systemDir))
        {
          session.TraceIndexUsage = true;
          Stopwatch sw = new Stopwatch();
          sw.Start();
          session.BeginRead();
          // these LINQ statements will trigger a binary search lookup (not a linear search) of the matching Car objects in the BTreeSet
          Console.WriteLine("Blue Cars");
          foreach (Car c in (from aCar in session.Index<Car>("color") where aCar.Color == "Blue" select aCar))
            Console.WriteLine(c.ToStringDetails(session));
          session.Commit();
          sw.Stop();
          Console.WriteLine(sw.Elapsed);
        }
        using (SessionNoServer session = new SessionNoServer(s_systemDir))
        {
          Stopwatch sw = new Stopwatch();
          sw.Start();
          session.BeginUpdate();
          for (int i = 0; i < 10000; i++)
          { // add some junk to make search harder
            car = new Car(color, maxPassengers, fuelCapacity, litresPer100Kilometers, modelYear, brandName, modelName, i,
            odometer, registrationState, registrationPlate + i, insuranceCompany, insurancePolicy);
            session.Persist(car);
          }
          session.Commit();
          sw.Stop();
          Console.WriteLine(sw.Elapsed);

    protected void RegisterButton_Click(object sender, EventArgs e)
    {
      try
      {
        using (SessionNoServer session = new SessionNoServer(dataPath, 2000, true, true))
        {
          session.BeginUpdate();
          CustomerContact customer = new CustomerContact(CompanyName.Text, FirstName.Text, LastName.Text, Email.Text, Address.Text, AddressLine2.Text,
            City.Text, ZipCode.Text, State.Text, Country.SelectedItem.Text, Country.SelectedItem.Value, Phone.Text, Fax.Text, MobilePhone.Text,
            SkypeName.Text, Website.Text, UserName.Text, Password.Text, HowFoundTextBox.Text, HowFoundRadioButtonList.SelectedIndex, session);
          Root root = (Root)session.Open(Root.PlaceInDatabase, 1, 1, false);
          CustomerContact lookup;
          string user = this.User.Identity.Name;
          if (user != null && user.Length > 0)
          {
            lookup = new CustomerContact(user, null);
            root.customersByEmail.TryGetKey(lookup, ref existingCustomer);
          }
          else
          {
            lookup = new CustomerContact(customer.email, customer.userName);
            if (!root.customersByEmail.TryGetKey(lookup, ref existingCustomer))
              root.customersByUserName.TryGetKey(lookup, ref existingCustomer);
          }
          if (existingCustomer != null)
          {
            existingCustomer.Update();

            if (existingCustomer.email != customer.email)
            {
              string verifiedEmail = (string)Session["EmailVerificationEmail"];
              int emailVerification = (int)Session["EmailVerification"];
              if (Request.IsLocal == false)
              {
                if (emailVerification < 0 || verifiedEmail != customer.email)
                {
                  errors.Text = "Email was not verified for new user registration";
                  session.Abort();
                  return;
                }
                int enteredVerificationNumber;
                int.TryParse(EmailVerification.Text, out enteredVerificationNumber);
                if (emailVerification != enteredVerificationNumber)
                {
                  errors.Text = "Entered Email Verification number is " + enteredVerificationNumber + " does match the emailed verification number: " + emailVerification;
                  Session["EmailVerification"] = -1;
                  session.Abort();
                  return;
                }
              }
              if (existingCustomer.password != customer.password && user != existingCustomer.email)
              {
                errors.Text = "Entered Email address already registered";
                session.Abort();
                return;
              }
              existingCustomer.priorVerifiedEmailSet.Add(existingCustomer.email);
              root.customersByEmail.Remove(existingCustomer);
              existingCustomer.email = customer.email;
              root.customersByEmail.Add(existingCustomer);
            }
            if (existingCustomer.userName != customer.userName)
            {
              lookup = new CustomerContact(user, customer.userName);
              if (root.customersByUserName.TryGetKey(lookup, ref lookup))
              {
                errors.Text = "Entered User Name is already in use";
                session.Abort();
                return;
              }
              // remove and add to get correct sorting order
              root.customersByUserName.Remove(existingCustomer);
              existingCustomer.userName = customer.userName;
              root.customersByUserName.Add(existingCustomer);
            }
            existingCustomer.company = customer.company;
            existingCustomer.firstName = customer.firstName;
            existingCustomer.lastName = customer.lastName;
            existingCustomer.address = customer.address;
            existingCustomer.addressLine2 = customer.addressLine2;
            existingCustomer.city = customer.city;
            existingCustomer.zipCode = customer.zipCode;
            existingCustomer.state = customer.state;
            existingCustomer.country = Country.SelectedItem.Text;
            existingCustomer.countryCode = Country.SelectedItem.Value;
            existingCustomer.phone = customer.phone;
            existingCustomer.fax = customer.fax;
            existingCustomer.mobile = customer.mobile;
            existingCustomer.skypeName = customer.skypeName;
            existingCustomer.webSite = customer.webSite;
            existingCustomer.password = customer.password;
            existingCustomer.howFoundOther = customer.howFoundOther;
            existingCustomer.howFoundVelocityDb = customer.howFoundVelocityDb;
          }
          else
          {
            if (Request.IsLocal == false)
            {
              int emailVerification = (int)Session["EmailVerification"];
              string verifiedEmail = (string)Session["EmailVerificationEmail"];
//.........这里部分代码省略.........

    static void importEntireWikipedia()
    {
      const ushort btreeNodeSize = 10000;
      Console.WriteLine(DateTime.Now.ToString() + ", start importing Wikipedia text");
      //System.Xml.Schema.XmlSchema docSchema;
      //using (System.Xml.XmlTextReader schemaReader = new System.Xml.XmlTextReader("c:\\export-0_5.xsd"))
      //{
      //  docSchema = System.Xml.Schema.XmlSchema.Read(schemaReader, ValidationCallBack);
      // }
      int docCount = 0;
      using (SessionNoServer session = new SessionNoServer(s_systemDir, 5000, false, false, CacheEnum.No)) // turn of page and object caching
      {
        Console.WriteLine("Running with databases in directory: " + session.SystemDirectory);
        //GCSettings.LatencyMode = GCLatencyMode.Batch;// try to keep the WeakIOptimizedPersistableReference objects around longer
        Placement documentPlacement = new Placement(Document.PlaceInDatabase, 1003, 1, 500, 1000, false, false, 1000, false);
        Placement contentPlacement = new Placement(Document.PlaceInDatabase, 1, 1, 500, UInt16.MaxValue, false, false, 1, false);
        XmlComment xmlComment;
        XmlElement xmlElement;
        XmlEntity xmlEntity;
        XmlText xmlText;
        XmlWhitespace xmlWhitespace;
        session.BeginUpdate();
        File.Copy(s_licenseDbFile, System.IO.Path.Combine(session.SystemDirectory, "4.odb"), true);
        // register all database schema classes used by the application in advance to avoid lock conflict later in parallell indexing
        session.RegisterClass(typeof(Repository));
        session.RegisterClass(typeof(IndexRoot));
        session.RegisterClass(typeof(Document));
        session.RegisterClass(typeof(Lexicon));
        session.RegisterClass(typeof(DocumentText));
        session.RegisterClass(typeof(Word));
        session.RegisterClass(typeof(WordGlobal));
        session.RegisterClass(typeof(WordHit));
        session.RegisterClass(typeof(BTreeSet<Document>));
        session.RegisterClass(typeof(OidShort));
        session.RegisterClass(typeof(BTreeMap<Word, WordHit>));
        session.RegisterClass(typeof(HashCodeComparer<Word>));
        session.RegisterClass(typeof(BTreeSetOidShort<Word>));
        session.RegisterClass(typeof(BTreeMapOidShort<Word, WordHit>));
        Database db = session.OpenDatabase(IndexRoot.PlaceInDatabase, false, false);
        if (db != null)
        {
          outputSomeInfo(session);
          session.Abort();
          return;
        }
        session.NewDatabase(IndexRoot.PlaceInDatabase, 0, "IndexRoot");
        session.NewDatabase(Lexicon.PlaceInDatabase, 0, "Lexicon");
        session.NewDatabase(Repository.PlaceInDatabase, 0, "Repository");
        for (UInt32 i = 40; i <= 186; i++)
        {
          session.NewDatabase(i, 512, "Document"); // pre allocate 146 Document databases presized to 512MB each
        }
        //session.SetTraceDbActivity(Lexicon.PlaceInDatabase);
        //session.SetTraceAllDbActivity();
        XmlDocument xmlDocument = new XmlDocument("enwiki-latest-pages-articles.xml");
        IndexRoot indexRoot = new IndexRoot(btreeNodeSize, session);
        indexRoot.Persist(session, indexRoot, true);
        Document doc = null;
        bool titleElement = false;
        bool pageText = false;
        UInt32 currentDocumentDatabaseNum = documentPlacement.StartDatabaseNumber;
        using (FileStream fs = new FileStream(s_wikipediaXmlFile, FileMode.Open))
        {
          //using (GZipStream zipStream = new GZipStream(fs, CompressionMode.Decompress)) // if input was a .gz file
          {
            using (System.Xml.XmlTextReader textReader = new System.Xml.XmlTextReader(fs))
            {
              while (textReader.Read())
              {
                System.Xml.XmlNodeType nodeType = textReader.NodeType;
                switch (nodeType)
                {
                  case System.Xml.XmlNodeType.Attribute:
                    break;
                  case System.Xml.XmlNodeType.CDATA:
                    break;
                  case System.Xml.XmlNodeType.Comment:
                    xmlComment = new XmlComment(textReader.Value, xmlDocument);
                    break;
                  case System.Xml.XmlNodeType.Document:
                    break;
                  case System.Xml.XmlNodeType.DocumentFragment:
                    break;
                  case System.Xml.XmlNodeType.DocumentType:
                    break;
                  case System.Xml.XmlNodeType.Element:
                    xmlElement = new XmlElement(textReader.Prefix, textReader.LocalName, textReader.NamespaceURI, xmlDocument);
                    if (textReader.LocalName == "title")
                      titleElement = true;
                    else if (textReader.LocalName == "text")
                      pageText = true;
                    break;
                  case System.Xml.XmlNodeType.EndElement:
                    if (textReader.LocalName == "title" && doc != null)
                      titleElement = false;
                    else if (textReader.LocalName == "text" && doc != null)
                      pageText = false;
                    break;
                  case System.Xml.XmlNodeType.EndEntity:
                    break;
//.........这里部分代码省略.........