---
name: "Log::NullLogLite"
section: "3pm"
platform: "linux"
package: "liblog-loglite-perl"
version: "0.82-9"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Log::NullLogLite"
---

# Log::NullLogLite(3pm)

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

## NAME

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

## SYNOPSIS

```
  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);
```

## DESCRIPTION

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.

## CONSTRUCTOR

- new ( FILEPATH \[,LEVEL \[,DEFAULT\_MESSAGE \]\] )

  The constructor. The parameters will not have any affect. Returns the new Log::NullLogLite object.

## METHODS

- 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 ("").

## AUTHOR

Rani Pinchuk, rani@cpan.org

## COPYRIGHT

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.

## SEE ALSO

**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)