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Level(3)	      User Contributed Perl Documentation	      Level(3)

       Log::Log4perl::Level - Predefined log levels

	 use Log::Log4perl::Level;
	 print $ERROR, "\n";

	 # -- or --

	 use Log::Log4perl qw(:levels);
	 print $ERROR, "\n";

       "Log::Log4perl::Level" simply exports a predefined set of Log4perl log
       levels into the caller's	name space. It is used internally by
       "Log::Log4perl".	The following scalars are defined:


       "Log::Log4perl" also exports these constants into the caller's
       namespace if you	pull it	in providing the ":levels" tag:

	   use Log::Log4perl qw(:levels);

       This is the preferred way, there's usually no need to call
       "Log::Log4perl::Level" explicitly.

       The numerical values assigned to	these constants	are purely virtual,
       only used by Log::Log4perl internally and can change at any time, so
       please don't make any assumptions. You can test for numerical equality
       by directly comparing two level values, that's ok:

	   if( get_logger()->level() ==	$DEBUG ) {
	       print "The logger's level is DEBUG\n";

       But if you want to figure out which of two levels is more verbose, use
       Log4perl's own comparator:

	   if( Log::Log4perl::Level::isGreaterOrEqual( $level1,	$level2	) ) {
	       print Log::Log4perl::Level::to_level( $level1 ),
		   " is	equal or more verbose than ",
		   Log::Log4perl::Level::to_level( $level2 ), "\n";

       If the caller wants to import level constants into a different
       namespace, it can be provided with the "use" command:

	   use Log::Log4perl::Level qw(MyNameSpace);

       After this $MyNameSpace::ERROR, $MyNameSpace::INFO etc.	will be
       defined accordingly.

   Numeric levels and Strings
       Level variables like $DEBUG or $WARN have numeric values	that are
       internal	to Log4perl. Transform them to strings that can	be used	in a
       Log4perl	configuration file, use	the c<to_level()> function provided by

	   use Log::Log4perl qw(:easy);
	   use Log::Log4perl::Level;

	       # prints	"DEBUG"
	   print Log::Log4perl::Level::to_level( $DEBUG	), "\n";

       To perform the reverse transformation, which takes a string like
       "DEBUG" and converts it into a constant like $DEBUG, use	the
       to_priority() function:

	   use Log::Log4perl qw(:easy);
	   use Log::Log4perl::Level;

	   my $numval =	Log::Log4perl::Level::to_priority( "DEBUG" );

       after which $numval could be used where a numerical value is required:

	   Log::Log4perl->easy_init( $numval );

       Copyright 2002-2013 by Mike Schilli <> and Kevin Goess

       This library is free software; you can redistribute it and/or modify it
       under the same terms as Perl itself.

       Please contribute patches to the	project	on Github:

       Send bug	reports	or requests for	enhancements to	the authors via	our

       MAILING LIST (questions,	bug reports, suggestions/patches):

       Authors (please contact them via	the list above,	not directly): Mike
       Schilli <>, Kevin Goess	<>

       Contributors (in	alphabetical order): Ateeq Altaf, Cory Bennett,	Jens
       Berthold, Jeremy	Bopp, Hutton Davidson, Chris R.	Donnelly, Matisse
       Enzer, Hugh Esco, Anthony Foiani, James FitzGibbon, Carl	Franks,	Dennis
       Gregorovic, Andy	Grundman, Paul Harrington, Alexander Hartmaier	David
       Hull, Robert Jacobson, Jason Kohles, Jeff Macdonald, Markus Peter,
       Brett Rann, Peter Rabbitson, Erik Selberg, Aaron	Straup Cope, Lars
       Thegler,	David Viner, Mac Yang.

perl v5.32.0			  2020-07-22			      Level(3)


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