Simply my slot is not called

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• C++ class destructor not called on request nearby

  I started playing with waterfall and C++ development but im having a problem where I can link my class to the qml and use breast but firm request the something on my class hangs the request and its icon in the emulator will slightly transparent and can no longer be clicked.

  It's the call to add it to the qml

  File: Applicationui.cpp
  
  ApplicationUI::ApplicationUI(bb::cascades::Application *app): QObject(app){ // create scene document from main.qml asset // set parent to created document to ensure it exists for the whole application lifetime QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
  
  //My classGpsCommunicator* gps = new GpsCommunicator();
  
  //Add the Classqml->setContextProperty("_gps",gps);
  
  // create root object for the UI AbstractPane *root = qml->createRootObject();
  
  // set created root object as a scene app->setScene(root);
  }
   
  

  Here is the class.hpp

  
  class GpsCommunicator : public QObject {
  Q_OBJECT
  
  Q_PROPERTY(double latitude READ latitude) Q_PROPERTY(double longitude READ longitude) Q_PROPERTY(double accuracy READ accuracy) Q_PROPERTY(double altitude READ altitude) Q_PROPERTY(double heading READ heading) Q_PROPERTY(double satellites READ satellites) Q_PROPERTY(double speed READ speed)
  Q_PROPERTY(bool isRegistered READ isRegistered) Q_PROPERTY(bool isAltitudeValid READ isAltitudeValid) Q_PROPERTY(bool isAccuracyValid READ isAccuracyValid) Q_PROPERTY(bool isHeadingValid READ isHeadingValid) Q_PROPERTY(bool isSpeedValid READ isSpeedValid)
  public: GpsCommunicator(QObject *parent = 0); virtual ~GpsCommunicator();
  //Latitude Property double latitude();
  //Latitude Property double longitude();
  //Accuracy Property double accuracy(); bool isAccuracyValid();
  //Altitude Property double altitude(); bool isAltitudeValid();
  //Heading Property double heading(); bool isHeadingValid();
  //Speed Property double speed(); bool isSpeedValid();
  //Number of Satellite Property double satellites();
  //Registered successfully to geolocation events bool isRegistered();
  Q_INVOKABLE void StartPollTimer(int i = 0); Q_INVOKABLE void StopPollTimer();
  signals:
  
  private:
  //Bool to track if this class is registered to receive geo-location events bool m_isRegistered;
  double m_latitude; double m_longitude; double m_accuracy; bool m_accuracy_valid; double m_altitude; bool m_altitude_valid; double m_altitude_accuracy; bool m_altitude_accuracy_valid; double m_heading; bool m_heading_valid; double m_speed; bool m_speed_valid; double m_num_satellites; bool m_num_satellites_valid;
  void InitializeGps(); void InitializeCommunicator();
  //Poll timer QTimer *pollTimer;
  
  public slots:
  void CheckForGPSEvent();
  };
   
  

  Here is the .cpp for her

  
  GpsCommunicator::GpsCommunicator(QObject *parent): QObject(parent) { //Start up sequence this->InitializeCommunicator(); this->InitializeGps();}
  void GpsCommunicator::InitializeCommunicator() { this->m_isRegistered = false;}
  GpsCommunicator::~GpsCommunicator() { // TODO Auto-generated destructor stub this->StopPollTimer(); delete this->pollTimer; geolocation_stop_events(0); bps_shutdown();}
  double GpsCommunicator::latitude() { return this->m_latitude;}
  double GpsCommunicator::speed() { return this->m_speed;}
  double GpsCommunicator::altitude() { return this->m_altitude;}
  double GpsCommunicator::longitude() { return this->m_longitude;}
  double GpsCommunicator::accuracy() { return this->m_accuracy;}
  double GpsCommunicator::heading() { return this->m_heading;}
  double GpsCommunicator::satellites() { return this->m_num_satellites;}
  bool GpsCommunicator::isRegistered(){ return this->m_isRegistered;}
  bool GpsCommunicator::isSpeedValid() { return this->m_speed_valid;}
  bool GpsCommunicator::isAccuracyValid() { return this->m_accuracy_valid;}
  bool GpsCommunicator::isAltitudeValid() { return this->m_altitude_valid;}
  bool GpsCommunicator::isHeadingValid() { return this->m_heading_valid;}
  void GpsCommunicator::StartPollTimer(int i) { this->pollTimer->start(i);}
  void GpsCommunicator::StopPollTimer() { this->pollTimer->stop();}
  void GpsCommunicator::InitializeGps() {
  if( bps_initialize() != BPS_FAILURE) { if ( geolocation_request_events( 0 ) != BPS_SUCCESS ) { //Report that the initialize failed this->m_isRegistered = false; //emit this->registeredChanged(this->m_isRegistered); } else { geolocation_set_period(1);
  //Update that the communicator is now registered and emit the signal this->m_isRegistered = true; //emit this->registeredChanged(this->m_isRegistered);
  //Create the timer instance this->pollTimer = new QTimer();
  //Connect it to the polling function this->connect(this->pollTimer, SIGNAL(timeout()), this, SLOT(CheckForGPSEvent())); this->StartPollTimer(100); } }}
  void GpsCommunicator::CheckForGPSEvent() {
  bps_event_t *event = NULL; bps_get_event(&event, 100); // -1 means that the function waits // for an event before returning if (event) {
  if (bps_event_get_domain(event) == geolocation_get_domain()) {
  if (event == NULL || bps_event_get_code(event) != GEOLOCATION_INFO) { return; }
  // TODO: change this so the emit is only called if the information is new
  this->m_latitude = geolocation_event_get_latitude(event); //emit this->latitudeChanged(this->m_latitude);
  this->m_longitude = geolocation_event_get_longitude(event); //emit this->longitudeChanged(this->m_longitude);
  this->m_accuracy = geolocation_event_get_accuracy(event); //emit this->accuracyChanged(this->m_accuracy);
  this->m_altitude = geolocation_event_get_altitude(event); //emit this->altitudeChanged(this->m_altitude);
  this->m_altitude_valid = geolocation_event_is_altitude_valid(event);
  this->m_altitude_accuracy = geolocation_event_get_altitude_accuracy(event);
  this->m_altitude_accuracy_valid = geolocation_event_is_altitude_accuracy_valid(event);
  this->m_heading = geolocation_event_get_heading(event); //emit this->headingChanged(this->m_heading);
  this->m_heading_valid = geolocation_event_is_heading_valid(event);
  this->m_speed = geolocation_event_get_speed(event); //emit this->speedChanged(this->m_speed);
  this->m_speed_valid = geolocation_event_is_speed_valid(event);
  this->m_num_satellites = geolocation_event_get_num_satellites_used(event); //emit this->satellitesChanged(this->m_num_satellites);
  this->m_num_satellites_valid = geolocation_event_is_num_satellites_valid(event); } }
  return;}
  

  I was checking to see if the deconstructor was called, but it doesn't seem to be. So I think it might be the QTimer not cleaned but I don't know how I get it to call on family members since I thought that once I signed with qml my QObject class would be deconstructed with other resources in a certain order.

  Thanks in advance for any help

  Do not call bps_get_event from an application of stunts that you might fly the main event loop events.  Rather implement AbstractBpsEventHandler to the BPS events delivered on the thread of your event.

• appeal of XHTML to servlet return do not answer, do not call servlet

  I xhtml in a web app using a servlet, but the answer of the servlet does not appear. The original xhtml displays once you press the submit button. I tried different alternatives for the servlet response, but I get the same result every time. I added logging to the servlet, but it seems that the servlet is not called at all.
  
  XHTML:
  

  <?xml version="1.0" encoding="UTF-8"?>
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  servlet web app called:
  

  package netgui.servlet;
  
  import java.io.IOException;
  import java.util.Enumeration;
  
  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
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  HttpServletResponse response) throws ServletException, IOException   {
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  }
  
  protected void doPost(HttpServletRequest request,
  HttpServletResponse response) throws ServletException, IOException {
  processRequest(request, response);
  }
  
  private void processRequest(HttpServletRequest request,
  HttpServletResponse response) throws IOException {
  
  try {
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  } catch (Exception e) {
  logger.error(e.getMessage());
  e.printStackTrace();
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  }}}
  
  I also have a menu.xhtml that is calling the xhtml file:
  
  <?xml version="1.0" encoding="UTF-8"?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
  "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml"
  xmlns:f="http://java.sun.com/jsf/core"
  xmlns:h="http://java.sun.com/jsf/html"
  xmlns:c="http://java.sun.com/jsp/jstl/core"
  xmlns:ui="http://java.sun.com/jsf/facelets">
  
  <body>
  <script type="text/javascript">
  $(document).ready(function() {
  $("#btn").click(function() {
  $("#upload").click(); 
  return false; 
  }); 
  });
  </script>   
  <ui:composition>
  <div id="navigation_bar">
  <ul id="topbarleft">
  <c:choose>                  
  <c:when test="${currentPage=='somepage.xhtml'}">
  <li><b>Some Page display</b></li>
  </c:when>
  <c:otherwise>
  <li><h:outputLink value="somepage.jsf">
  <h:outputText value="some page" />
  </h:outputLink></li>
  </c:otherwise>
  </c:choose>
  </ul>
  </div>
  </ui:composition>
  </body>
  </html>

  Y at - it a special format to send a form to a servlet of xhtml? Any ideas what could be the problem?
  
  Published by: Atlas77 on April 16, 2012 06:53
  
  Published by: Atlas77 on April 16, 2012 06:54
  
  Published by: Atlas77 on April 16, 2012 06:56
  
  Published by: Atlas77 on April 16, 2012 07:27

  Call it a guess, you're not the first to fall into the trap of the nested :) form Its too easy to simply slap a high h:form somewhere near the top of the tree and forget it.

  For the future: remember that the browser is actually doing the work when you submit a form. If something goes wrong, it appears in the HTML source as you can see by using the function "view page source" from the browser. It pays to know HTML and especially the limits if you want to understand such things by yourself. When you locate the faulty HTML code, it is usually not so hard more to trace what is bad in the JSF source.

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• the menu item run method not called

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  BlackBerry JDE plugin for Eclipse Version: 1.0.0.50

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  You call system.exit() in the Builder before entering the EventDispatcher. I'm guessing that you add the menu item, but leave the application, and when the menu item is called it is more a reference to the context of the application and decides not to continue. The menu item will not remove itself when the application closes.

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  Here's how...

  http://support.Dell.com/support/eDOCS/systems/ins1110/en/SM/MiniCard.htm#wp1189718

  It will be important to make the right card for your machine. You need to know what is compatible from Dell. If you don't like the price of Dell, you can take a chance on eBay...