J2ME Bluetooth connection steps

Following are the connection setup steps for J2ME Bluetooth.
(example shows Connecting to Server mode connection already
created with btspp)

1. Inititate Search for devices.
2. Method "deviceDiscovered" called by flatform for each device.
3. Method "inquiryCompleted" called by flatform when device search completes.
4. Then do a service search for selected device.
5. Method "servicesDiscovered" called by flatform for each service.
6. Method "serviceSearchCompleted" called by platform when service search completes.
7. (there open a StreamConnection to chosen service URL)

        //step 1
      public void SearchAvailDevices() {
         try {
       //First get the local device and obtain the discovery agent.
       m_LclDevice = LocalDevice.getLocalDevice();

       m_DscrAgent = m_LclDevice.getDiscoveryAgent();

       m_DscrAgent.startInquiry(DiscoveryAgent.GIAC, this);
} catch (BluetoothStateException ex) {
  vobt.addLog("Problem in searching the blue tooth devices : " + ex.getMessage());
  System.out.println("Problem in searching the blue tooth devices");
  ex.printStackTrace();
}

}
//step 2 -- PLATFORM CALL
//Called when device is found during inquiry
public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {

try {
  // Get Device Info
  System.out.println("Device Discovered");
  System.out.println("Major Device Class: " + cod.getMajorDeviceClass() + " Minor Device Class: " + cod.getMinorDeviceClass());
  System.out.println("Bluetooth Address: " + btDevice.getBluetoothAddress());
  System.out.println("Bluetooth Friendly Name: " + btDevice.getFriendlyName(true));
  vobt.addLog("**Device Discovered**");
  vobt.addLog("#Major Device Class: " + cod.getMajorDeviceClass() + " Minor Device Class: " + cod.getMinorDeviceClass());
  vobt.addLog("#Bluetooth Address: " + btDevice.getBluetoothAddress());

 //put remote devices in Array
  remoteDevicesArray[deviceCount] = btDevice;
  deviceClassesArray [deviceCount] = cod;
  deviceCount++;
} catch (Exception e) {
  System.out.println("Device Discovered Error: " + e);
  vobt.addLog("deviceDiscovered : " + e);
}
//step 3--PLATFORM CALL
//when device search completes
public void inquiryCompleted(int discType) { }
//step 4
//Search for srvices in Given device as following
public void serviceSearch(int selectedIndex)
{
try {
  UUID[] uuidSet = new UUID[1];
  uuidSet[0] = RFCOMM_UUID; // UUID USED TO INITIATE SERVER
  int searchID = m_DscrAgent.searchServices(null, uuidSet, remoteDevicesArray[selectedIndex], this);
} catch (BluetoothStateException ex) {
  ex.printStackTrace();
     vobt.addLog("deviceDiscovered : " + ex);
}
}
 // step 5 -- PLATFORM CALL 
    //when service found during service search (for each time new service found)
    public void servicesDiscovered(int transID, ServiceRecord[] records) {

        for (int i = 0; i < records.length; i++) {
            m_strUrl = records[i].getConnectionURL(ServiceRecord.AUTHENTICATE_ENCRYPT, false);
          
            System.out.println(m_strUrl);
            if (m_strUrl.startsWith("btspp")) //search for URLS with btspp 
            {
                m_bServerFound = true;
                m_bInitClient = true;
                break;
            }

        }
        }


// step6 -- PLATFORM CALL 
// when service search complete for given device
 public void serviceSearchCompleted(int transID, int respCode) {
       try {  // open stream connection with needed URL 
            StrmConn = (StreamConnection) Connector.open(m_strUrl);
                }
          catch()
                {}
          }

Share Article : J2ME Bluetooth connection steps

J2ME Bluetooth connection steps

Hibernate querying and iteration using JSTL

1.If a query return a single raw with data from mulitple tables
(unique result with mulitple objects in-hibernate),
it returns array of Entity Objects.
A[0]
A[n]
....

2.If a query return multiple raws with data from mulitple tabels
it return List of Array objects.
L[0] ---
|+--- A[0]...A[m]
L[n] ---
|+--- A[0]...A[m]
.....

Code for situation 1

   SQLQuery query = session.createSQLQuery(sql);
   query.addEntity("person", Person.class);
   query.addEntity("specializations", Entity.Specializations.class);
       
    Object obj =  query.uniqueResult();
  // obj is an array
  //A[0] will be a "person" and A[1] will be a "specializations" Object

View using JSTL

${objectArray[0].salutationText}. ${objectArray[0].nameWithInitials}
${objectArray[1].specializationText}

Code for situation 2

SQLQuery query = session.createSQLQuery(sql);
query.addEntity("session", Entity.Session.class);
query.addEntity("person", Person.class);

     list = query.list();
    // this return List of Arrays 
    // where L[n]  A[0] -- "session" , A[1] -- "person"

Iterate using JSTL

      ${p[0].sessionId}
      ${p[0].sessionDate}
      ${p[1].name}
      ${p[1].address}

Share Article : Hibernate querying and iteration using JSTL

Hibernate querying and iteration using JSTL

SMS-Gmail Password Recovery over SMS

We forget our passwords from time to time. Then what a hassel, forms forms, security questions and login to secondary email address. But now with Gmail, we just have to enter Username here(Password Assisatance Page), they sms a Recovery Code to phone, Simple.Befor that you have to set up under account settings. I tried and it works :) give it a try

Important-Supported Carries (for Sri Lanka)

• Dialog Telekom Ltd
• Mobitel Sri Lanka
• Tigo (Private) Limited

Share Article : SMS-Gmail Password Recovery over SMS

SMS-Gmail Password Recovery over SMS

United Air Break Guitars- leeds to YouTube Hit Song

Canadian musician Dave Carroll's guitar had beeing smashed by United Airlines

workers and the airline had refused to pay $US1200 cost to repair it. Everything for good,

at last he did a song with anger and now it's a youtube hit 900 000+ views :) have a look.

Share Article : United Air Break Guitars- leeds to YouTube Hit Song

United Air Break Guitars- leeds to YouTube Hit Song