Hi Rhys, Thanks anyway. For the record, here's the equivalent question asked for log4j in general: http://stackoverflow.com/questions/17399610/log4j-set-different-layout-for-same-file
regards, Lars R. -----Original Message----- From: Rhys Ulerich [mailto:rhys.uler...@gmail.com] Sent: mercredi 22 janvier 2014 00:44 To: Log4CXX User Subject: Re: Different loggers writing to same file with different Layouts? > I'd like to have two different loggers logging to a same file, but with > different Layouts. I suspect, but do not know, that this is not supported. > I have created two different loggers, part of same hierarchy. > Naively, I have assigned a different FileAppender to each, with a different > Layout each. > But I have given the same file name to both. > This works. Both types of logs appear in the file. > > However i wonder if this is only a side-effect rather than a feature. I believe you're right that it is only a side-effect of the implementation. > Because what would happen if i set different options on the two FileAppenders? > What if i use both RollingFileAppender and FileAppender on the same file? I suspect Very Bad Things (TM). > So is there another (safer?) recommended method for having two loggers > writing to the same file, but with different layouts? I'm unsure of one. I believe a Layout is 1-1 with an Appender and a File is 1-1 with a FileAppender. How to do this is not jumping out at me from browsing the class hierarchy. Sorry to not be more help, Rhys
