At 04:08 PM 15/08/2001, Chien Wei Tan wrote:
>Hi,
>
>How would I use log4j to distinguish the log messages coming from different
>instances of the same class?
>
>Eg. MyClass m1 = new MyClass(); // output log messages to MyLog.log
> MyClass m2 = new MyClass(); // output log messages to MyLog.log, and
>MyOtherLog.log
> MyClass m3 = new MyClass(); // output log messages to MyOtherLog.log
> MyClass m4 = new MyClass(); // output log messages to MyOtherLog.log,
>and MyLog.log
>
>
>if the above classes output log messages to MyLog.log and MyOtherLog.log,
>how can i differentiate from the log messages, which instance of MyClass is
>the source?????
>
>In addition, 1) if m1, m2, m3, m4 were all running from the same location,
> 2) and what if they were distributed and running from
> different
>locations?
What feature of the class distinguishes each instance (the default being
the address in memory).?
You could use an NDC to log that see the examples for usage of NDC's - in
particular SortAlgo.java) or prefix every log output with 'this', e.g.
logger.debug(this+"My message").
Does that help?
Robert
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