NAME

       VM::EC2::SecurityGroup::GroupPermission - Object describing an authorized group within a security group
       firewall rule

SYNOPSIS

         $ec2      = VM::EC2->new(...);
         $sg       = $ec2->describe_security_groups(-name=>'My Group');
         @rules = $sg->ipPermissions;
         $rule  = $rules[0];

         @groups = $rule->groups;
         for my $g (@groups) {
           $userId = $g->userId;
           $name   = $g>groupName;
           $id     = $g->groupId;
           $group_object = $g->security_group;
         }

DESCRIPTION

       This object describes a security group whose instances are granted permission to exchange data traffic
       with another group of instances. It is returned by the groups() method of
       VM::EC2::SecurityGroup::ipPermission.

       Note that this object is not the same as a bona fide VM::EC2::SecurityGroup, which has access to the
       group's firewall rules. This object contains just the name, id and owner of a group used within a
       firewall rule. For groups that belong to you, you can get the full VM::EC2::SecurityGroup object by
       calling the security_group() method. These details are not available to groups that belong to other
       accounts.

METHODS

   $id = $group->groupId
       Return the group's unique ID.

   $id = $group->userId
       Return the account ID of the owner of this group.

   $id = $group->groupName
       Return this group's name.

   $string = $group->short_name
       Return a string for use in string overloading. See "STRING OVERLOADING".

   $sg = $group->security_group
       For groups that belong to the current account, calls VM::EC2->describe_security_groups() to turn the
       group name into a VM::EC2::SecurityGroup. For groups that belong to a different account, will return
       undef, since describe_security_groups() on other accounts is not allowed by Amazon.

STRING OVERLOADING

       When used in a string context, this object will interpolate the user id and group name in the form
       "userId/groupName" for groups that belong to other accounts, and the groupName alone in the case of
       groups that belong to you.

SEE ALSO

       VM::EC2 VM::EC2::Generic VM::EC2::SecurityGroup VM::EC2::SecurityGroup::IpPermission

AUTHOR

       Lincoln Stein <lincoln.stein@gmail.com>.

       Copyright (c) 2011 Ontario Institute for Cancer Research

       This package and its accompanying libraries is free software; you can redistribute it and/or modify it
       under the terms of the GPL (either version 1, or at your option, any later version) or the Artistic
       License 2.0.  Refer to LICENSE for the full license text. In addition, please see DISCLAIMER.txt for
       disclaimers of warranty.