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Log::Report::Exception(3pm) User Contributed Perl Documentation Log::Report::Exception(3pm)

NAME

Log::Report::Exception - a single generated event

SYNOPSIS

  # created within a try block
  try { error "help!" };
  my $exception = $@->wasFatal;
  $exception->throw if $exception;
  $@->reportFatal;  # combination of above two lines
  my $message = $exception->message;   # the Log::Report::Message
  if($message->inClass('die')) ...
  if($exception->inClass('die')) ...   # same
  if($@->wasFatal(class => 'die')) ... # same

DESCRIPTION

In Log::Report, exceptions are not as extended as available in languages as Java: you do not create classes for them. The only thing an exception object does, is capture some information about an (untranslated) report.

OVERLOADED

Produces "reason: message" via toString().
Always returns "true": the exception object exists.

METHODS

Constructors

$class->new(%options)
Create a new exception object, which is basically a "message" which was produced for a "reason". 

 -Option     --Default
  message      <required>
  reason       <required>
  report_opts  +{ }

Accessors

$obj->isFatal()
Returns whether this exception has a severity which makes it fatal when thrown. [1.34] This can have been overruled with the "is_fatal" attribute. See Log::Report::Util::is_fatal().

example:

  if($ex->isFatal) { $ex->throw(reason => 'ALERT') }
  else { $ex->throw }
$obj->message( [$message] )
Change the $message of the exception, must be a Log::Report::Message object.

When you use a "Log::Report::Message" object, you will get a new one returned. Therefore, if you want to modify the message in an exception, you have to re-assign the result of the modification.

example:

  $e->message->concat('!!')); # will not work!
  $e->message($e->message->concat('!!'));
  $e->message(__x"some message {xyz}", xyz => $xyz);
$obj->reason( [$reason] )

$obj->report_opts()

Processing

$obj->inClass($class|Regexp)
Check whether any of the classes listed in the message match $class (string) or the Regexp. This uses Log::Report::Message::inClass().
$obj->print( [$fh] )
The default filehandle is STDOUT.

example:

  print $exception;  # via overloading
  $exception->print; # OO style
$obj->throw(%options)
Insert the message contained in the exception into the currently defined dispatchers. The "throw" as method name is commonly known exception related terminology for "report".

The %options overrule the captured options to Log::Report::report(). This can be used to overrule a destination. Also, the reason can be changed.

Returned is the LIST of dispatchers which have accepted the forwarded exception.

example: overrule defaults to report

  try { report {to => 'default'}, ERROR => 'oops!' };
  $@->reportFatal(to => 'syslog');
  my ($syslog) = $exception->throw(to => 'syslog');
  my @disps = $@->wasFatal->throw(reason => 'WARNING');
$obj->toHTML( [$locale] )
[1.11] Calls toString() and then escapes HTML volatile characters.
$obj->toString( [$locale] )
Prints the reason and the message. Differently from throw(), this only represents the textual content: it does not re-cast the exceptions to higher levels.

example: printing exceptions

  print $_->toString for $@->exceptions;
  print $_ for $@->exceptions;   # via overloading

SEE ALSO

This module is part of Log-Report version 1.41, built on September 11, 2025. Website: http://perl.overmeer.net/CPAN/

LICENSE

For contributors see file ChangeLog.

This software is copyright (c) 2007-2025 by Mark Overmeer.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.

2025-10-06 perl v5.40.1