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Mail::Box::Message::Destructed.3pm

NAME

Mail::Box::Message::Destructed - a destructed message

INHERITANCE

  Mail::Box::Message::Destructed
    is a Mail::Box::Message
    is a Mail::Message
    is a Mail::Reporter
 
 

SYNOPSIS

  $folder->message(3)->destruct;
 
 

DESCRIPTION

When a message folder is read, each message will be parsed into Perl structures. Especially the header structure can consume a huge amount of memory (message bodies can be moved to external temporary files). Destructed messages have forcefully cleaned-up all header and body information, and are therefore much smaller. Some useful information is still in the object.

BE WARNED: once a message is destructed, it cannot be revived. Destructing enforces irreversable deletion from the folder. If you have a folder opened for read-only, the message will stay in that folder, but otherwise it may be deleted.

METHODS

Constructors

$obj->clone(OPTIONS)

See ``Constructors'' in Mail::Message

Mail::Box::Message::Destructed->new(MESSAGE-ID, OPTIONS)

You cannot instantiate a destructed message object. Destruction is done by calling Mail::Box::Message::destruct().

  Option    --Defined in     --Default
  body        Mail::Message    undef
  body_type   Mail::Box::Message  <from folder>
  deleted     Mail::Message    <false>
  field_type  Mail::Message    undef
  folder      Mail::Box::Message  <required>
  head        Mail::Message    undef
  head_type   Mail::Message    Mail::Message::Head::Complete
  labels      Mail::Message    {}
  log         Mail::Reporter   'WARNINGS'
  messageId   Mail::Message    undef
  modified    Mail::Message    <false>
  size        Mail::Box::Message  undef
  trace       Mail::Reporter   'WARNINGS'
  trusted     Mail::Message    <false>
 
 

. body => OBJECT

. body_type => CODE|CLASS

. deleted => BOOLEAN

. field_type => CLASS

. folder => FOLDER

. head => OBJECT

. head_type => CLASS

. labels => ARRAY|HASH

. log => LEVEL

. messageId => STRING

. modified => BOOLEAN

. size => INTEGER

. trace => LEVEL

. trusted => BOOLEAN

Constructing a message

$obj->bounce([RG-OBJECT|OPTIONS])

See ``Constructing a message'' in Mail::Message::Construct::Bounce

Mail::Box::Message::Destructed->build([MESSAGE|PART|BODY], CONTENT)

See ``Constructing a message'' in Mail::Message::Construct::Build

Mail::Box::Message::Destructed->buildFromBody(BODY, [HEAD], HEADERS)

See ``Constructing a message'' in Mail::Message::Construct::Build

$obj->forward(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardAttach(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardEncapsulate(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardInline(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardNo(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardPostlude

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardPrelude

See ``Constructing a message'' in Mail::Message::Construct::Forward

$obj->forwardSubject(STRING)

See ``Constructing a message'' in Mail::Message::Construct::Forward

Mail::Box::Message::Destructed->read(FILEHANDLE|SCALAR|REF-SCALAR|ARRAY-OF-LINES, OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Read

$obj->rebuild(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Rebuild

$obj->reply(OPTIONS)

See ``Constructing a message'' in Mail::Message::Construct::Reply

$obj->replyPrelude([STRING|FIELD|ADDRESS|ARRAY-OF-THINGS])

See ``Constructing a message'' in Mail::Message::Construct::Reply

$obj->replySubject(STRING)

Mail::Box::Message::Destructed->replySubject(STRING)

See ``Constructing a message'' in Mail::Message::Construct::Reply

The message

$obj->container

See ``The message'' in Mail::Message

$obj->copyTo(FOLDER, OPTIONS)

See ``The message'' in Mail::Box::Message

$obj->folder([FOLDER])

See ``The message'' in Mail::Box::Message

$obj->isDummy

See ``The message'' in Mail::Message

$obj->isPart

See ``The message'' in Mail::Message

$obj->messageId

See ``The message'' in Mail::Message

$obj->moveTo(FOLDER, OPTIONS)

See ``The message'' in Mail::Box::Message

$obj->print([FILEHANDLE])

See ``The message'' in Mail::Message

$obj->send([MAILER], OPTIONS)

See ``The message'' in Mail::Message

$obj->seqnr([INTEGER])

See ``The message'' in Mail::Box::Message

$obj->size

See ``The message'' in Mail::Message

$obj->toplevel

See ``The message'' in Mail::Message

$obj->write([FILEHANDLE])

See ``The message'' in Mail::Message

The header

$obj->bcc

See ``The header'' in Mail::Message

$obj->cc

See ``The header'' in Mail::Message

$obj->date

See ``The header'' in Mail::Message

$obj->destinations

See ``The header'' in Mail::Message

$obj->from

See ``The header'' in Mail::Message

$obj->get(FIELDNAME)

See ``The header'' in Mail::Message

$obj->guessTimestamp

See ``The header'' in Mail::Message

$obj->head([HEAD])

When "undef" is specified for HEAD, no change has to take place and the method returns silently. In all other cases, this method will complain that the header has been removed.

$obj->nrLines

See ``The header'' in Mail::Message

$obj->sender

See ``The header'' in Mail::Message

$obj->study(FIELDNAME)

See ``The header'' in Mail::Message

$obj->subject

See ``The header'' in Mail::Message

$obj->timestamp

See ``The header'' in Mail::Message

$obj->to

See ``The header'' in Mail::Message

The body

$obj->body([BODY])

When "undef" is specified for BODY, no change has to take place and the method returns silently. In all other cases, this method will complain that the body data has been removed.

$obj->contentType

See ``The body'' in Mail::Message

$obj->decoded(OPTIONS)

See ``The body'' in Mail::Message

$obj->encode(OPTIONS)

See ``The body'' in Mail::Message

$obj->isMultipart

See ``The body'' in Mail::Message

$obj->isNested

See ``The body'' in Mail::Message

$obj->parts(['ALL'|'ACTIVE'|'DELETED'|'RECURSE'|FILTER])

See ``The body'' in Mail::Message

Flags

$obj->delete

See ``Flags'' in Mail::Message

$obj->deleted([BOOLEAN])

See ``Flags'' in Mail::Message

$obj->isDeleted

See ``Flags'' in Mail::Message

$obj->isModified

See ``Flags'' in Mail::Message

$obj->label(LABEL|PAIRS)

It is possible to delete a destructed message, but not to undelete it.

$obj->labels

See ``Flags'' in Mail::Message

$obj->labelsToStatus

See ``Flags'' in Mail::Message

$obj->modified([BOOLEAN])

See ``Flags'' in Mail::Message

$obj->statusToLabels

See ``Flags'' in Mail::Message

The whole message as text

$obj->file

See ``The whole message as text'' in Mail::Message::Construct::Text

$obj->lines

See ``The whole message as text'' in Mail::Message::Construct::Text

$obj->printStructure([FILEHANDLE|undef],[INDENT])

See ``The whole message as text'' in Mail::Message::Construct::Text

$obj->string

See ``The whole message as text'' in Mail::Message::Construct::Text

Internals

$obj->clonedFrom

See ``Internals'' in Mail::Message

Mail::Box::Message::Destructed->coerce(MESSAGE)

Coerce a Mail::Box::Message into destruction.
example: of coercion to death

  Mail::Box::Message::Destructed->coerce($folder->message(1));
  $folder->message(1)->destruct;  # same
 
  my $msg = $folder->message(1);
  Mail::Box::Message::Destructed->coerce($msg);
  $msg->destruct;                 # same
 
 

$obj->diskDelete

See ``Internals'' in Mail::Box::Message

$obj->isDelayed

See ``Internals'' in Mail::Message

$obj->readBody(PARSER, HEAD [, BODYTYPE])

See ``Internals'' in Mail::Box::Message

$obj->readFromParser(PARSER, [BODYTYPE])

See ``Internals'' in Mail::Message

$obj->readHead(PARSER [,CLASS])

See ``Internals'' in Mail::Message

$obj->recursiveRebuildPart(PART, OPTIONS)

See ``Internals'' in Mail::Message::Construct::Rebuild

$obj->storeBody(BODY)

See ``Internals'' in Mail::Message

$obj->takeMessageId([STRING])

See ``Internals'' in Mail::Message

Error handling

$obj->AUTOLOAD

See ``METHODS'' in Mail::Message::Construct

$obj->addReport(OBJECT)

See ``Error handling'' in Mail::Reporter

$obj->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

Mail::Box::Message::Destructed->defaultTrace([LEVEL]|[LOGLEVEL, TRACELEVEL]|[LEVEL, CALLBACK])

See ``Error handling'' in Mail::Reporter

$obj->errors

See ``Error handling'' in Mail::Reporter

$obj->log([LEVEL [,STRINGS]])

Mail::Box::Message::Destructed->log([LEVEL [,STRINGS]])

See ``Error handling'' in Mail::Reporter

$obj->logPriority(LEVEL)

Mail::Box::Message::Destructed->logPriority(LEVEL)

See ``Error handling'' in Mail::Reporter

$obj->logSettings

See ``Error handling'' in Mail::Reporter

$obj->notImplemented

See ``Error handling'' in Mail::Reporter

$obj->report([LEVEL])

See ``Error handling'' in Mail::Reporter

$obj->reportAll([LEVEL])

See ``Error handling'' in Mail::Reporter

$obj->shortSize([VALUE])

Mail::Box::Message::Destructed->shortSize([VALUE])

See ``Error handling'' in Mail::Message

$obj->shortString

See ``Error handling'' in Mail::Message

$obj->trace([LEVEL])

See ``Error handling'' in Mail::Reporter

$obj->warnings

See ``Error handling'' in Mail::Reporter

Cleanup

$obj->DESTROY

See ``Cleanup'' in Mail::Message

$obj->destruct

See ``Cleanup'' in Mail::Box::Message

$obj->inGlobalDestruction

See ``Cleanup'' in Mail::Reporter

DETAILS

DIAGNOSTICS

Error: Cannot coerce a (class) into destruction

Only real Mail::Box::Message objects can get destructed into Mail::Box::Message::Destructed objects. Mail::Message free their memory immediately when the last reference is lost.

Error: Cannot include forward source as $include.

Unknown alternative for the forward(include). Valid choices are "NO", "INLINE", "ATTACH", and "ENCAPSULATE".

Error: Cannot include reply source as $include.

Unknown alternative for the "include" option of reply(). Valid choices are "NO", "INLINE", and "ATTACH".

Error: Destructed message has no labels except 'deleted'

Error: Destructed messages can not be undeleted

Once a message is destructed, it can not be revived. Destruction is an optimization in memory usage: if you need an undelete functionality, then you can not use Mail::Box::Message::destruct().

Error: Method bounce requires To, Cc, or Bcc

The message bounce() method forwards a received message off to someone else without modification; you must specified it's new destination. If you have the urge not to specify any destination, you probably are looking for reply(). When you wish to modify the content, use forward().

Error: Method forwardAttach requires a preamble

Error: Method forwardEncapsulate requires a preamble

Error: No address to create forwarded to.

If a forward message is created, a destination address must be specified.

Error: No default mailer found to send message.

The message send() mechanism had not enough information to automatically find a mail transfer agent to sent this message. Specify a mailer explicitly using the "via" options.

Error: No rebuild rule $name defined.

Error: Only build() Mail::Message's; they are not in a folder yet

You may wish to construct a message to be stored in a some kind of folder, but you need to do that in two steps. First, create a normal Mail::Message, and then add it to the folder. During this Mail::Box::addMessage() process, the message will get coerce()-d into the right message type, adding storage information and the like.

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.

Error: You cannot instantiate a destructed message

You cannot instantiate a destructed message object directly. Destruction is done by calling Mail::Box::Message::destruct() on any existing folder message.

Error: You cannot take the head/body of a destructed message

The message originated from a folder, but its memory has been freed-up forcefully by means of Mail::Box::Message::destruct(). Apparently, your program still tries to get to the header or body data after this destruction, which is not possible.

SEE ALSO

This module is part of Mail-Box distribution version 2.095, built on July 02, 2010. Website: http://perl.overmeer.net/mailbox/

LICENSE

Copyrights 2001-2010 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://www.perl.com/perl/misc/Artistic.html