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Thread: synchronisation of code in multiple instance of jvm

  1. #1
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    Lightbulb synchronisation of code in multiple instance of jvm

    hi all

    There is method in the class of my application and there are four other class which is running in different machine means different jvm and these classes are accessing the method of my class. then how to protect my method from accessing other class at the same time.

    i am not able to use synchronized keyword because this works only for single jvm.
    so pls provide me some solution for this.

    pls provide me solution for this.
    Last edited by srkmca07@gmail.com; May 27th, 2014 at 04:54 AM.


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    Default Re: synchronisation of code in multiple instance of jvm

    Please provide a short, runnable example that demonstrates the problem.

  3. #3
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    Default Re: synchronisation of code in multiple instance of jvm

    Might be, that I did not understand your question correctly, but I think you want to prevent the user from starting the same java application twice, correct?
    If this is the case then unfortunately, you cant do this in a clean way.
    A litte hack that you can use is to create a socket on a specific port, when this port is already in use then you can assume, that your application is already running. (or some other application which uses the same port) Its not nice and I wouldnt recommend it, but it gets the job done.

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