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  1. #1
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    Exclamation PUSH TECHNOLOGY IN JAVAME?

    HI,

    Thanks
    Last edited by shanklin; 2010-09-20 at 14:44.

  2. #2
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Quote Originally Posted by shanklin View Post
    Could someone please clarify, if Nokia supports PUSH technology like the Blackberry does?
    No, Nokia do not support data push like BlackBerry. BlackBerry's push system is unique.

    Quote Originally Posted by shanklin View Post
    In Java, you can send SMS that allow a application to start up.
    Yes, SMS is a "push" technology. Most devices will support this through PushRegistry, which allows an incoming SMS to launch your application.

    Quote Originally Posted by shanklin View Post
    Also you can make the application do something in response to a email or SMS etc..using platformRequest()??
    No, platformRequest() allows your application to ask the device's operating system to launch another application. It does not allow your application to respond to an external event.

    Quote Originally Posted by shanklin View Post
    What about PULL aswell?
    HttpConnection allows you to pull information from a server. HTTP is a pull technology.

    Graham.

  3. #3
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    Exclamation Re: PUSH TECHNOLOGY IN JAVAME?

    Hi,

    Thanks for the clarification
    Last edited by shanklin; 2010-09-20 at 14:44.

  4. #4
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Quote Originally Posted by shanklin View Post
    i thought users can download application to their phone that can support this?
    You're talking about BlackBerry Connect for Symbian.

    BlackBerry push is not just a feature of software on the device. It requires the BlackBerry Enterprise Service and special support in the phone network. If you have a BlackBerry handset, but you are using a phone network that does not support BlackBerry, the handset will no longer support push email.

    When you use BlackBerry push, you do not push information to the device. You push it to the BlackBerry network, which in turn pushes the data to the device for you. Therefore, you need BlackBerry contracts to allow you access to their network.

    If you install BlackBerry Connect on a Nokia Series 60, you will still need a BlackBerry Service contract to make push email work. You will need access to BlackBerry network servers in order to push your own information to the device.

    So far as know, BlackBerry Connect for Symbian is no longer supported.

    Quote Originally Posted by shanklin View Post
    Can this be done in response to any SMS? does the content of the SMS matter?
    The SMS must be sent to a specific port number. Please search the forum for more information on this, it has been discussed many times.

    Quote Originally Posted by shanklin View Post
    Also, is it possible to launch an application via email too?
    No, email protocols like POP3 and IMAP are pull technologies, not push.

    Quote Originally Posted by shanklin View Post
    Is this the only Pull technology supported?, I mean are there any alternatives?
    You can connect to a server using SocketConnection also, though this may be more difficult than using HttpConnection.

    Graham.

  5. #5
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    Exclamation Re: PUSH TECHNOLOGY IN JAVAME?

    Hi,

    Thanks for the confirmation
    Last edited by shanklin; 2010-09-20 at 14:44.

  6. #6
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Could a web service could also be used?
    Yes, you can connect to Web Services from j2me client and can take help of various features provided by JSR-172 for this.

    thanks,
    ~Amitabh

  7. #7
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Web services work over HTTP.

    Graham.

  8. #8
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    Exclamation Re: PUSH TECHNOLOGY IN JAVAME?

    Hi,

    Thanks for the replies
    Last edited by shanklin; 2010-09-20 at 14:45.

  9. #9
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    Re: PUSH TECHNOLOGY IN JAVAME?

    What you are asking is basically the same as "can I send a letter in the post, and it be received as a phone call?". Yes, if someone in the middle receives the letter, phones the recipient, and reads the letter to them. Otherwise, no. Likewise, you need some service to receive the email (as normal internet email), and re-transmit the message to the phone as an SMS.

    Graham.

  10. #10
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    Re: PUSH TECHNOLOGY IN JAVAME?

    sory to intrude but i have a question too regarding the Push registry.

    if you are using sockets and there are many client applications listerning for an inbound connection, how would you differenciate between the clients? in other words, how can you initiate a client specific connection from the server if all clients are listerning on the same port?

  11. #11
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    Re: PUSH TECHNOLOGY IN JAVAME?

    the clients are not listening on the server's specific port...
    a client app will be listening to it's own devices specific port, if the app has registered a specific port for the sms-receival then it will react when an sms arrives on that port...
    So again the clients aren't listening on a specific server's port, but it's the server thats ends an sms to a specific port on the clients which then react on it... So it's pushed from the server...

  12. #12
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Hi,

    Thanks
    Last edited by shanklin; 2010-09-20 at 14:47.

  13. #13
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Yes. Nokia phones support SMS, which is a push technology.

    Graham.

  14. #14
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    Re: PUSH TECHNOLOGY IN JAVAME?

    Hi,


    Thanks
    Last edited by shanklin; 2010-09-20 at 14:47.

  15. #15
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    Re: PUSH TECHNOLOGY IN JAVAME?

    There are many systems that mimmic push (such as Microsoft DirectPush) by initiating a connection from the device to the server, then holding that connection open so that the server can send information back. Purists, however, would say that this is not truly push, since the connection is not initiated from the server.

    Graham.

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