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Log::Log4perl::Level.3pm
Langue: en
Version: 2009-05-03 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
Log::Log4perl::Level - Predefined log levelsSYNOPSIS
use Log::Log4perl::Level; print $ERROR, "\n"; # -- or -- use Log::Log4perl qw(:levels); print $ERROR, "\n";
DESCRIPTION
"Log::Log4perl::Level" simply exports a predefined set of Log4perl log levels into the caller's name space. It is used internally by "Log::Log4perl". The following scalars are defined:$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 ), "\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 );
AUTHOR
Mike Schilli, <m@perlmeister.com>COPYRIGHT AND LICENSE
Copyright 2002-2008 by Mike SchilliThis library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre