tm::resourceable::memcached(3pm) [debian man page]

TM::ResourceAble::MemCached(3pm)			User Contributed Perl Documentation			  TM::ResourceAble::MemCached(3pm)

NAME

       TM::ResourceAble::MemCached - Topic Maps, Memcached server backend

SYNOPSIS

	   use TM::ResourceAble::MemCached;
	   use Fcntl;
	   # create/reset new map
	   my $tm = new TM::ResourceAble::MemCached (
		       baseuri => 'http://whereever/',
		       servers => [ localhost:11211 ],
		       mode    => O_TRUNC | O_CREAT,
		    );

	   # use TM interface

	   # open existing map
	   my $tm = new TM::ResourceAble::MemCached (
			baseuri => 'http://whereever/',
			servers => [ localhost:11211 ],
		    );

DESCRIPTION

       This package implements TM using a memcached server farm as backend. You should be able (without much testing, mind you, so it is
       EXPERIMENTAL) to perform all operations according to the TM interface.

       NOTE: The implementation is using the TIE technique (perltie via Tie::StdHash), so maybe there are problems lurking.

       Of course, a set of memcacheds can store any number of maps. To keep them separate, the baseuri is used, so make sure every map gets its
       own baseuri.

INTERFACE

   Constructor
       The constructor expects a hash with the following keys:

       servers (default: none)
	   The value must be a reference to an array of strings, each of the form host:port. If there is no such list, then the constructor will
	   fail.

       mode (default: O_CREAT)
	   The value must be a value from Fcntl to control

	   o   whether the map should be created ("O_CREAT") when it does not exist, and/or

	   o   whether the map should be cleared ("O_TRUNC") when it existed before.

       All other options are passed to the constructor chain of traits (TM::ResourceAble) and superclasses (TM).

SEE ALSO

       TM, TM::ResourceAble

AUTHOR INFORMATION

       Copyright 2010, Robert Barta <drrho@cpan.org>, All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
       http://www.perl.com/perl/misc/Artistic.html

perl v5.10.1							    2010-08-04					  TM::ResourceAble::MemCached(3pm)

TM::Synchronizable::MapSphere(3pm)			User Contributed Perl Documentation			TM::Synchronizable::MapSphere(3pm)

NAME

       TM::Synchronizable::MapSphere - Topic Maps, trait for a syncing a hierarchical TM repository

SYNOPSIS

	  use TM;
	  use base qw(TM);
	  use Class::Trait ('TM::MapSphere',
			    'TM::Synchronizable::MLDBM' => {
				exclude => [ "sync_in", "sync_out" ]
			    },
			    'TM::Synchronizable::MapSphere');

DESCRIPTION

       This trait adds "sync_in" and "sync_out" functionality to a map sphere. The point here is that embedded child maps are also synced out or
       in.

   Map Meta Data
INTERFACE

   Methods
       sync_in
	   $ms->sync_in ($path)

	   A whole subtree of the map repository can be sync'ed in, i.e. synchronized with contents in an associated resource. If this method is
	   triggered with a particular path, then the map there will be (a) synced in, (b) queried for sub-maps and (c) these sub-maps will be
	   instantiated.  Recursively, these submaps will be sync'ed in, etc. All these sub maps will be mounted under this branch of the tree.

	   When a map is instantiated, its implementation package will be extracted from the parent map using a "implementation" characteristic.
	   The resource URL will be determined from one of the subject indicators, the base URI will be determined from the subject address of the
	   map topic. If any of these are missing, this particular sub-map is ignored.

	   Example: Let us assume that a map has a "baseuri" "http://whatever/" and a resource URL "http://example.org/here.xtm". It is a
	   materialized map using the XTM driver. If this map is mounted into a root map under "/foo/", then the entry will take the form (using
	   AsTMa= 2.0 as notation):

	      foo isa topicmap
	      ~ http://example.org/here.xtm
	      = http://whatever/
	      implementation: TM::Materialized::XTM

	   @@@ TODO: no path @@@@?

       sync_out
	   $ms->sync_out ([ $path ], [ $depth ])

	   This method syncs out not only the root map sphere object (at least if the resource "mtime" is earlier that any change on the map
	   sphere). The method also consults the mount tab to find child maps and will sync them out as well.

	   The optional "path" parameter controls which subtree should be synced out. It defaults to "/".

	   The optional $depth controls how deep the subtree should be followed downwards. Default is "MAX_DEPTH" (see the source).

AUTHOR

       Robert Barta, <drrho@cpan.org>

COPYRIGHT AND LICENSE

       Copyright (C) 200[67] by Robert Barta

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.4 or,
       at your option, any later version of Perl 5 you may have available.

perl v5.10.1							    2008-04-10					TM::Synchronizable::MapSphere(3pm)