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Singleton implementation in loggig / log4j

Mainak Goswami
Ranch Hand

Joined: May 21, 2006
Posts: 50


I was just going through the Log4j architecture and wondering if Log4j does implement Singleton pattern. Can anybody please highlight the log4j architecture and how does it implement singleton pattern. Any pointers will also be useful.
Thanks in advance.


E Armitage

Joined: Mar 17, 2012
Posts: 892
Log4j does not restrict the possible set of loggers. It uses an inheritance of Loggers inheriting from the root logger so I don't know if you would put that down as singleton.
It is sorta covered in the JavaRanch Style Guide.
subject: Singleton implementation in loggig / log4j
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