RoPkg::Exceptions(3pm) User Contributed Perl Documentation RoPkg::Exceptions(3pm)
NAME
RoPkg::Exceptions - exceptions used by RoPkg packages
DESCRIPTION
RoPkg::Exceptions is a collection of predefined exceptions used by all modules from RoPkg namespace.
SYNOPSIS
#!/usr/bin/perl
use strict;
use warnings;
use RoPkg::Exceptions;
sub main {
eval {
if ( $#ARGV == -1 ) {
Param::Missing->throw('No parameter found');
}
};
if ( my $e = Exception::Class->caught('Param::Missing') ) {
print STDERR $e->message,$/,$e->trace,$/;
}
}
main();
It is very possible that you don't find a good reason for using exceptions from this example. And you are right. This example is kind of
silly. But, try to use exceptions in a real project. Then, you will apreciate their real value.
DEPENDENCIES
RoPkg::Exceptions require perl 5.008 or later and the Exception::Class module.
Exceptions List
The following exceptions are defined in this class:
*) General - general pourpose exception
*) OutsideClass - raised when a method is called outside a class instance
*) File - the base for all file related exceptions . This exception has the filename parameter, who can be used to specify the path to the
file. filename parameter can be used by all derivated exceptions. The following exceptions are derivated from File:
*) File::NotFound - the file was not found
*) File::Open - error while opening file
*) File::Create - could not create file
*) Dir - the base for all directory related exceptions . This exception has the dirname parameter, who can be used to specify the path to
the directory. dirname parameter can be used by all derivated exceptions. The following exceptions are derivated from Dir:
*) Dir::NotFound - the directory was not found
*) Dir::Open - error while opening directory
*) Dir::Create - could not create directory
*) Param - the base for all parameters related exceptions. This exception has the name parameter, who can be used to specify the parameter
name. name can be used by all derivated exceptions. The following exceptions are derivated from Param:
*) Param::Missing - the parameter was not found
*) Param::Unknown - the parameter is unknown
*) Param::Wrong - the parameter has the wrong value or is not defined
*) DB - the base for all database related exceptions. This exception has the following parameters: dsn, user and pass . This exception (and
the ones derivated from her) are mostly used in RoPkg::DB class. Of course, this doesn't means that you can't use them in your application
;) .The following exceptions are derivated from DB:
*) DB::Connect - raised when the connection with the database could not be established
*) DB::ConnExists - raised when a connection with the same name already exists.
*) DB::ConnNotFound - the requested connection was not found
*) DB::NoResults - the sql query returned no results
Exceptions Tree
ROOT
General
OutsideClass
File
File::NotFound
File::Open
File::Create
Dir
Dir::NotFound
Dir::Open
Dir::Create
Param
Param::Missing
Param::Unknown
Param::Wrong
DB
DB::Connect
DB::ConnExists
DB::ConnNotFound
DB::NoResults
SEE ALSO
RoPkg::Utils
AUTHOR
Subredu Manuel <diablo@iasi.roedu.net>
VERSION
The current version is 0.2.1
DIAGNOSTICS
The tests for this module are located in t directory. To run those tests, use the following command: make test
SUBROUTINES
/METHODS
This module does not have any public methods.
INCOMPATIBILITIES
None known to me
PERL CRITIC
This module is perl critic level 1 compliant with 1 exception.
BUGS AND LIMITATIONS
No known bugs. If you find one (or many) please send me a detailed report.
CONFIGURATION AND ENVIRONMENT
No configuration file or environment variables are used by this module.
LICENSE AND COPYRIGHT
Copyright (C) 2005 Subredu Manuel. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the
same terms as Perl itself. The LICENSE file contains the full text of the license.
perl v5.8.8 2006-06-09 RoPkg::Exceptions(3pm)