Re: File Locking in IO classes

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#486

From: Vander
Date: Tue, 19 Apr 2005 18:54

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Kevin Dean [TeamB] wrote:
> Vander wrote:
> 
> 
>>I wonder if there are standard file locking mechanisms implemented
>>for the standard Java VM concerning the file IO classes, in a way
>>that you can rely on. Let's focus on RandomAccessFile.
>>
>>RandomAccessFile rf;
>>File file ... ;
>>String modus ... ;
>>rf = new RandomAccessFile( file, modus );
>>
>>If I want to make sure (or as sure as possible from the Java
>>perspective) that "file" is declared for "exclusive" access in the
>>operating system, do I need to apply calls to rf.getChannel()? Or
>>does it suffice to open rf in "rw" mode and the Java implementation
>>already organizes this part for me?
>>
>>Similar questions may be put for the other file IO classes,
>>FileOutputStream and FileInputStream. I have found no assertions in
>>the Java documents about any standard access modi activated.
> 
> 
> A search for "java file locking" (minus the quotes) on Google yields
> the following:
> 
> http://javaalmanac.com/egs/java.nio/SetFileLock.html
> 

Very nice! But that was nit the question.
- Vander

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Date: Tue, 19 Apr 2005 20:54:48 +0200
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