Log::NullLogLite - The "Log::NullLogLite" class implements the Null Object pattern for the "Log::LogLite"

       Rani Pinchuk, rani@cpan.org

       new ( FILEPATH [,LEVEL [,DEFAULT_MESSAGE ]] )
           The constructor. The parameters will not have any affect.  Returns the new Log::NullLogLite object.

       Copyright  (c)  2001-2002  Ockham  Technology N.V. & Rani Pinchuk.  All rights reserved.  This package is
       free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       The "Log::NullLogLite" class is derived from the "Log::LogLite" class and implement the Null Object
       Pattern to let us to use the "Log::LogLite" class with null "Log::LogLite" objects.  We might want to do
       that if we use a "Log::LogLite" object in our code, and we do not want always to actually define a
       "Log::LogLite" object (i.e. not always we want to write to a log file). In such a case we will create a
       "Log::NullLogLite" object instead of the "Log::LogLite" object, and will use that object instead.  The
       object has all the methods that the "Log::LogLite" object has, but those methods do nothing. Thus our
       code will continue to run without any change, yet we will not have to define a log file path for the
       "Log::LogLite" object, and no log will be created.

       write( MESSAGE [, LEVEL ] )
           Does nothing. The parameters will not have any affect.  Returns nothing.

       level( [ LEVEL ] )
           Does nothing. The parameters will not have any affect.  Returns -1.

       default_message( [ MESSAGE ] )
           Does nothing. The parameters will not have any affect.  Returns empty string ("").

       Log::NullLogLite - The "Log::NullLogLite" class implements the Null Object pattern for the "Log::LogLite"
       class.

Log::LogLite(3), The Null Object Pattern - Bobby Woolf - PLoP96  -  published  in  Pattern  Languages  of
       Program Design 3 (http://cseng.aw.com/book/0,,0201310112,00.html)

perl v5.36.0                                       2022-12-04                                   NullLogLite(3pm)

         use Log::NullLogLite;

         # create new Log::NullLogLite object
         my $log = new Log::NullLogLite();

         ...

         # we had an error (this entry will not be written to the log
         # file because we use Log::NullLogLite object).
         $log->write("Could not open the file ".$file_name.": $!", 4);