NAME

       Mail::Message::Head::Delayed - a not-read header of a Mail::Message

INHERITANCE

        Mail::Message::Head::Delayed realizes a Mail::Message::Head::Complete

        Mail::Message::Head::Delayed
          is a Mail::Message::Head
          is a Mail::Reporter

SYNOPSIS

        my $delayed = Mail::Message::Head::Delayed->new(...)
        $delayed->isa('Mail::Message::Head')  # true
        $delayed->guessBodySize               # undef
        $delayed->isDelayed                   # true

DESCRIPTION

       This object is used as place-holder, to be replaced by a Mail::Message::Head when someone
       accesses the header of a message.

       Extends "DESCRIPTION" in Mail::Message::Head.

OVERLOADED

       Extends "OVERLOADED" in Mail::Message::Head.

       overload: ""
           Inherited, see "OVERLOADED" in Mail::Message::Head

       overload: bool
           Inherited, see "OVERLOADED" in Mail::Message::Head

METHODS

       Extends "METHODS" in Mail::Message::Head.

   Constructors
       Extends "Constructors" in Mail::Message::Head.

       $obj->build($fields)
           You cannot create a delayed header with fields.

       Mail::Message::Head::Delayed->new(%options)
           Inherited, see "Constructors" in Mail::Message::Head

   The header
       Extends "The header" in Mail::Message::Head.

       $obj->isDelayed()
           Inherited, see "The header" in Mail::Message::Head

       $obj->isEmpty()
           Inherited, see "The header" in Mail::Message::Head

       $obj->isModified()
           Inherited, see "The header" in Mail::Message::Head

       $obj->knownNames()
           Inherited, see "The header" in Mail::Message::Head

       $obj->message( [$message] )
           Inherited, see "The header" in Mail::Message::Head

       $obj->modified( [BOOLEAN] )
           Inherited, see "The header" in Mail::Message::Head

       $obj->orderedFields()
           Inherited, see "The header" in Mail::Message::Head

   Access to the header
       Extends "Access to the header" in Mail::Message::Head.

       $obj->get( $name, [$index] )
           Get the information about the header line $name.  Realization will take place.

       $obj->study( $name, [$index] )
           Inherited, see "Access to the header" in Mail::Message::Head

   About the body
       Extends "About the body" in Mail::Message::Head.

       $obj->guessBodySize()
           On a delayed head, this returns "undef", because when there is no header there is also
           no body.

           For messages in directory or network organized folders, Mail::Message::size() usually
           will give a figure for the whole message without much cost.  Subtract a few hundred
           bytes for the header, and you will get a good estimate.

       $obj->guessTimeStamp()
           Make a guess about when the message was originally posted.  On a delayed head, this
           returns "undef".  For messages in directory or network organized folders,
           Mail::Message::timestamp() usually will give a figure without much cost.

       $obj->isMultipart()
           Inherited, see "About the body" in Mail::Message::Head

   Internals
       Extends "Internals" in Mail::Message::Head.

       $obj->addNoRealize($field)
           Inherited, see "Internals" in Mail::Message::Head

       $obj->addOrderedFields($fields)
           Inherited, see "Internals" in Mail::Message::Head

       $obj->fileLocation()
           Inherited, see "Internals" in Mail::Message::Head

       $obj->load()
           Inherited, see "Internals" in Mail::Message::Head

       $obj->moveLocation($distance)
           Inherited, see "Internals" in Mail::Message::Head

       $obj->read($parser)
           Inherited, see "Internals" in Mail::Message::Head

       $obj->setNoRealize($field)
           Inherited, see "Internals" in Mail::Message::Head

   Error handling
       Extends "Error handling" in Mail::Message::Head.

       $obj->AUTOLOAD()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->addReport($object)
           Inherited, see "Error handling" in Mail::Reporter

       $obj->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level, $callback] )
       Mail::Message::Head::Delayed->defaultTrace( [$level]|[$loglevel, $tracelevel]|[$level,
       $callback] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->errors()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->log( [$level, [$strings]] )
       Mail::Message::Head::Delayed->log( [$level, [$strings]] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->logPriority($level)
       Mail::Message::Head::Delayed->logPriority($level)
           Inherited, see "Error handling" in Mail::Reporter

       $obj->logSettings()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->notImplemented()
           Inherited, see "Error handling" in Mail::Reporter

       $obj->report( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->reportAll( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->trace( [$level] )
           Inherited, see "Error handling" in Mail::Reporter

       $obj->warnings()
           Inherited, see "Error handling" in Mail::Reporter

   Cleanup
       Extends "Cleanup" in Mail::Message::Head.

       $obj->DESTROY()
           Inherited, see "Cleanup" in Mail::Reporter

DETAILS

       Extends "DETAILS" in Mail::Message::Head.

DIAGNOSTICS

       Error: Cannot build() a delayed header.
           A delayed message header cannot contain any information, so cannot be build.  You can
           construct complete or subset headers.

       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.

SEE ALSO

       This module is part of Mail-Box distribution version 3.004, built on December 22, 2017.

       Do not forget to read Mail::Box-Overview, Mail::Box-Cookbook, and Mail::Box-Index.
       Examples are included in the Mail-Box distribution, directories 'examples' and 'scripts'.

       Browseable manuals, papers, and other released material van be found at  Website:
       http://perl.overmeer.net/mailbox/

       The central modules (in separate distributions) in the MailBox suite are: Mail::Message,
       Mail::Box, Mail::Box::IMAP4, Mail::Box::POP3, Mail::Box::Parser::C, Mail::Box::Dbx
       (unpublished), Mail::Transport, Object::Realize::Later, and User::Identity.

       Please post questions or ideas to the author markov@cpan.org.

LICENSE

       Copyrights 2001-2017 by [Mark Overmeer]. For other contributors see ChangeLog.

       This program is free software; you can redistribute it and/or modify it under the same
       terms as Perl itself.  See http://dev.perl.org/licenses/