On 09.03.2010, at 14:29, Ceki Gülcü wrote:


class  MesssageLogger {

 Logger logger;

 void debug(Message msg) {
   logger.debug("{}", msg);
 }
 ...
}

BTW, I've started looking at both Ralph and Joern's proposals.

Thanks.

The main difference is that the Message is assumed to reach the appender implementations unchanged, i.e. not transformed into a String. That way, appenders can implement special handling of certain known (to the appender) Message implementation. Only an appender like ConsoleAppender would actually use the formatted message. A specifically implemented DBAppender, for example, could store certain application-specific fields in special tables. Or, as in Ralphs case, if I remember correctly: take the structured data (a map) and store the various entries as required by the RFC.

Cheers,
Joern.

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