Retrieve an outputter.

Set an outputter.

Yields each outputter's name and reference.

An Outputter needs a name. RootLogger will be loaded if not already done. The hash arguments are as follows:

:level

Logger level. Optional, defaults to root level

:formatter

A Formatter. Defaults to DefaultFormatter

dynamically change the level

Set the levels to log. All others will be ignored

Dynamically change the formatter. You can just specify a Class object and the formatter will invoke new or instance on it as appropriate.

Call flush to force an outputter to write out any buffered log events.