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Thread: sync two diffrent kind of threads?

  1. #1
    Junior Member
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    Default sync two diffrent kind of threads?

    hello, hopefully i will be able to explain this clearly..

    i have an static object named:
    public static Document dataFileXml;
    and, i have two kind of threads running:
    final class HttpRequest implements Runnable // (could be none, could be many)
    public class ReminderSender implements Runnable // (only one thread running all the time)

    - Both of them have functions that read and write to "dataFileXml".
    - i am familiar with sync,wait,notifyall method for shared memory between multiple threads of the same kind - but does this work with two kinds of threads?
    - anyway - does anyone have a good suggestion how to make sure only one thread will have access to dataFileXml and the rest will have to wait for their turn?

    Thanks in advanced!

  2. #2
    Administrator copeg's Avatar
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    Oct 2009
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    Default Re: sync two diffrent kind of threads?

    Flank any changes to your dataFileXml object using synchronized

    synchronized (dataFileXml){
         ///make changes to dataFileXml

    This will cause a thread to lock the object and force other threads to wait for it to unlock before any changes can be made. A thread is a thread, so whether or not the runnable interface is implemented between objects, they are all just threads.

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