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Manual Reference Pages  -  MOOSEX::APP::PLUGIN::MUTEXGROUP (3)

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NAME

MooseX::App::Plugin::MutexGroup - Adds mutually exclusive options

CONTENTS

SYNOPSIS

In your base class:



 package MyApp;
 use MooseX::App qw(MutexGroup);

 option UseAmmonia => (
   is         => ro,
   isa        => Bool,
   mutexgroup => NonMixableCleaningChemicals,
 );

 option UseChlorine => (
   is         => ro,
   isa        => Bool,
   mutexgroup => NonMixableCleaningChemicals
 );



In your script:



 #!/usr/bin/env perl
 
 use strict;
 use warnings;

 use MyApp;

 MyApp->new_with_options( UseAmmonia => 1, UseChlorine => 1 );
 # generates Error
 # More than one attribute from mutexgroup NonMixableCleaningChemicals(UseAmmonia,UseChlorine) *cannot* be specified

 MyApp->new_with_options();
 # generates Error
 # One attribute from mutexgroup NonMixableCleaningChemicals(UseAmmonia,UseChlorine) *must* be specified

 MyApp->new_with_options( UseAmmonia => 1 );
 # generates no errors

 MyApp->new_with_options( UseChlorine => 1 );
 # generates no errors



DESCRIPTION

This plugin adds mutually exclusive options to your application. In the current implementation, all defined MutexGroups *must* have exactly one initialized option. This means that there is an implicit requiredness of one option from each MutexGroup.
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perl v5.20.3 MOOSEX::APP::PLUGIN::MUTEXGROUP (3) 2015-04-30

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