=head1 NAME

Mail::Box::Collection - a collection of subfolders


=head1 INHERITANCE

 Mail::Box::Collection
   is an User::Identity::Collection
   is an User::Identity::Item

 Mail::Box::Collection
   is a Mail::Reporter


=head1 SYNOPSIS



=head1 DESCRIPTION

The L<Mail::Box::Collection|Mail::Box::Collection> object maintains a set L<Mail::Box::Identity|Mail::Box::Identity>
objects, each describing a the location of a single mailbox (folder).  The
collection is used by the L<Mail::Box::Manage::User|Mail::Box::Manage::User> object to administer
the folders of a single user, even if those folders are closed.


=head1 OVERLOADED


overload: B<@{}>

=over 4

See L<User::Identity::Collection/"OVERLOADED">

=back

overload: B<stringification>

=over 4

See L<User::Identity::Collection/"OVERLOADED">

=back


=head1 METHODS


=head2 Constructors


Mail::Box::Collection-E<gt>B<new>([NAME], OPTIONS)

=over 4

 Option     --Defined in     --Default
 description  User::Identity::Item  undef
 folder_type                   <from parent>
 item_type    User::Identity::Collection  Mail::Box::Identity
 log          Mail::Reporter   'WARNINGS'
 manager                       <from parent>
 name         User::Identity::Item  'folders'
 parent       User::Identity::Item  undef
 roles        User::Identity::Collection  undef
 trace        Mail::Reporter   'WARNINGS'

. description STRING

. folder_type CLASS

. item_type CLASS

. log LEVEL

. manager OBJECT

=over 4

An L<Mail::Box::Manager|Mail::Box::Manager> OBJECT (could be a L<Mail::Box::Manage::User|Mail::Box::Manage::User>).

=back

. name STRING

. parent OBJECT

. roles ROLE|ARRAY

. trace LEVEL

=back

=head2 Error handling


$obj-E<gt>B<AUTOLOAD>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<addReport>(OBJECT)

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

Mail::Box::Collection-E<gt>B<defaultTrace>([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<errors>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<log>([LEVEL [,STRINGS]])

Mail::Box::Collection-E<gt>B<log>([LEVEL [,STRINGS]])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<logPriority>(LEVEL)

Mail::Box::Collection-E<gt>B<logPriority>(LEVEL)

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<logSettings>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<notImplemented>

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<report>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<reportAll>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<trace>([LEVEL])

=over 4

See L<Mail::Reporter/"Error handling">

=back

$obj-E<gt>B<warnings>

=over 4

See L<Mail::Reporter/"Error handling">

=back

=head2 Cleanup


$obj-E<gt>B<DESTROY>

=over 4

See L<Mail::Reporter/"Cleanup">

=back

$obj-E<gt>B<inGlobalDestruction>

=over 4

See L<Mail::Reporter/"Cleanup">

=back

=head2 Attributes


$obj-E<gt>B<description>

=over 4

See L<User::Identity::Item/"Attributes">

=back

$obj-E<gt>B<folderType>([FOLDERCLASS])

=over 4

Returns the type of folder (on this location).  When specified, then
FOLDERCLASS must be a L<Mail::Box|Mail::Box> extension.

=back

$obj-E<gt>B<itemType>

=over 4

See L<User::Identity::Collection/"Attributes">

=back

$obj-E<gt>B<manager>

=over 4

The L<Mail::Box::Manager|Mail::Box::Manager> (usually a L<Mail::Box::Manage::User|Mail::Box::Manage::User> object),
which is handling the opening of folders.

=back

$obj-E<gt>B<name>([NEWNAME])

=over 4

See L<User::Identity::Item/"Attributes">

=back

$obj-E<gt>B<roles>

=over 4

See L<User::Identity::Collection/"Attributes">

=back

=head2 Collections


$obj-E<gt>B<add>(COLLECTION, ROLE)

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<addCollection>(OBJECT | ([TYPE], OPTIONS))

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<collection>(NAME)

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<parent>([PARENT])

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<removeCollection>(OBJECT|NAME)

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<type>

Mail::Box::Collection-E<gt>B<type>

=over 4

See L<User::Identity::Item/"Collections">

=back

$obj-E<gt>B<user>

=over 4

See L<User::Identity::Item/"Collections">

=back

=head2 Maintaining roles


$obj-E<gt>B<addRole>(ROLE| ( [NAME],OPTIONS ) | ARRAY-OF-OPTIONS)

=over 4

See L<User::Identity::Collection/"Maintaining roles">

=back

$obj-E<gt>B<removeRole>(ROLE|NAME)

=over 4

See L<User::Identity::Collection/"Maintaining roles">

=back

$obj-E<gt>B<renameRole>(ROLE|OLDNAME, NEWNAME)

=over 4

See L<User::Identity::Collection/"Maintaining roles">

=back

$obj-E<gt>B<sorted>

=over 4

See L<User::Identity::Collection/"Maintaining roles">

=back

=head2 Searching


$obj-E<gt>B<find>(NAME|CODE|undef)

=over 4

See L<User::Identity::Collection/"Searching">

=back




=head1 DIAGNOSTICS

I<Error:> $object is not a collection.

The first argument is an object, but not of a class which extends
L<User::Identity::Collection|User::Identity::Collection>.

I<Error:> Cannot create a $type to add this to my collection.

Some options are specified to create a $type object, which is native to
this collection.  However, for some reason this failed.

I<Error:> Cannot load collection module for $type ($class).

Either the specified $type does not exist, or that module named $class returns
compilation errors.  If the type as specified in the warning is not
the name of a package, you specified a nickname which was not defined.
Maybe you forgot the 'require' the package which defines the nickname.

I<Error:> Cannot rename $name into $newname: already exists


I<Error:> Cannot rename $name into $newname: doesn't exist


I<Error:> Creation of a collection via $class failed.

The $class did compile, but it was not possible to create an object
of that class using the options you specified.

I<Error:> Don't know what type of collection you want to add.

If you add a collection, it must either by a collection object or a
list of options which can be used to create a collection object.  In
the latter case, the type of collection must be specified.

I<Warning:> No collection $name

The collection with $name does not exist and can not be created.

I<Error:> Package $package does not implement $method.

Fatal error: the specific package (or one of its superclasses) does not
implement this method where it should. This message means that some other
related classes do implement this method however the class at hand does
not.  Probably you should investigate this and probably inform the author
of the package.

I<Error:> Wrong type of role for $collection: requires a $expect but got a $type

Each $collection groups sets of roles of one specific type ($expect).  You
cannot add objects of a different $type.






=head1 REFERENCES

See the MailBox website at L<http://perl.overmeer.net/mailbox/> for more details.

=head1 COPYRIGHTS

Distribution version 2.068.
Written by Mark Overmeer (mark@overmeer.net).  See the ChangeLog for
other contributors.

Copyright (c) 2001-2006 by the author(s). All rights reserved.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.