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

NAME

       Log::Log4perl::Level - Predefined log levels

SYNOPSIS

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

	 # -- or --

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

DESCRIPTION

       "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:

	   $OFF
	   $FATAL
	   $ERROR
	   $WARN
	   $INFO
	   $DEBUG
	   $TRACE
	   $ALL

       "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" explicitely.

       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.

       If the caller wants to import these 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 Log::Log4perl::Level:

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

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

       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 AND LICENSE

       Copyright 2002-2009 by Mike Schilli <m@perlmeister.com> and Kevin Goess <cpan@goess.org>.

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

perl v5.12.1							    2010-02-07								  Level(3)