You could map the 3 strings onto MDC key-value pairs, e.g. (m1, "string1)
and address them in a PatternLayout by %X{m1}, etc.
Hope this is what you were looking for.
dirk
> Dear All
>
> Is it possible to log for example a object with 3 strings and
> refer it
> later in PatternLayout with e.g %m1 %m2 %m3 ?
>
> Below there is some dummy code.
>
> Thanks in advance for any hint.
>
> Best Regards
>
> Joerg
>
>
>
> Example dummy code:
>
> ----------------------
> class MESSAGE{
>
> public String a;
> public String b;
> public String c;
>
> public message (String a, String b, String c)
> {
> this.a = a;
> this.b = b;
> this.c = c;
> }
>
> }
> -----------------
>
> somewhere in the program
> ....
> MESSAGE message new MESSAGE ("hello", "log", "reader");
> ....
> logger.getLogger(CategoryName).log(WRAPPER_FQN, Level.INFO,
> message,null);
> ....
> ----------------
> in the log4j.xml
> <appender ...>
> <layout class="org.apache.log4j.PatternLayout">
> <param name="ConversionPattern"
> value="%m1 %m2 %m3)" />
> </layout>
> ....
>
> ----------------
> As output from the appender
> hello log reader
>
>
>
>
>
>
>
>
>
>
>
>
>
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