About
An Appenders (or Handlers) define where to write the message also called Logging endpoints or output destination
Logger delegates the task of writing a logging event to components called appenders
More than one appender can be attached to a logger.
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Endpoint
- console stdout, stderr,
- file,
- port,
- socket,
- database,
- email,
- syslog … see SysLogAppender
Printing condition
http://logback.qos.ch/manual/architecture.html#basic_selection