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File Concurrency

Venkat Sidh
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Joined: Sep 30, 2006
Posts: 61
How to handle file concurrency if two different applications (different JVM's) try to edit same file. What is the best way to handle this scenario. Thanks.
Purushoth Thambu
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Joined: May 24, 2003
Posts: 425
Ideally when one file is open in write mode another process should be able to overwrite that file. However the more clean way is to use FileChannel and FileLock classes in java.nio packages. All you have to do is

lock() is a blocking method. You can use tryLock() version which doesn't block the call.
Venkat Sidh
Ranch Hand

Joined: Sep 30, 2006
Posts: 61
Thanks Purushothaman. Let me try out.
It is sorta covered in the JavaRanch Style Guide.
subject: File Concurrency
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