jifty::dbi::record::memcached(3pm) [debian man page]

Jifty::DBI::Record::Memcached(3pm)			User Contributed Perl Documentation			Jifty::DBI::Record::Memcached(3pm)

NAME

       Jifty::DBI::Record::Memcached - records with caching behavior

SYNOPSIS

	 package Myrecord;
	 use base qw/Jifty::DBI::Record::Memcached/;

DESCRIPTION

       This module subclasses the main Jifty::DBI::Record package to add a caching layer.

       The public interface remains the same, except that records which have been loaded in the last few seconds may be reused by subsequent get
       or load methods without retrieving them from the database.

METHODS

   load_from_hash
       Overrides the implementation from Jifty::DBI::Record to add support for caching.

   load_by_cols
       Overrides the implementation from Jifty::DBI::Record to add support for caching.

   _cache_config
       You can override this method to change the duration of the caching from the default of 5 seconds.

       For example, to cache records for up to 30 seconds, add the following method to your class:

	 sub _cache_config {
	     { 'cache_for_sec' => 30 }
	 }

   memcached_config
       Returns a hash containing arguments to pass to Cache::Memcached during construction. The defaults are like:

	 (
	     services => [ '127.0.0.1:11211' ],
	     debug    => 0,
	 )

       You may want to override this method if you want a customized cache configuration:

	 sub memcached_config {
	     (
		 servers => [ '10.0.0.15:11211', '10.0.0.15:11212',
			      '10.0.0.17:11211', [ '10.0.0.17:11211', 3 ] ],
		 debug	 => 0,
		 compress_threshold => 10_000,
	     );
	 }

   cache_key_prefix
       Returns the prefix we should prepend to all cache keys. If you're using one memcached for multiple applications, you want this to be
       different for each application or they might end up mingling data.

AUTHOR

       Matt Knopp <mhat@netlag.com>

SEE ALSO

       Jifty::DBI, Jifty::DBI::Record

perl v5.14.2							    2010-09-21					Jifty::DBI::Record::Memcached(3pm)

Jifty::DBI::Collection::Union(3pm)			User Contributed Perl Documentation			Jifty::DBI::Collection::Union(3pm)

NAME

       Jifty::DBI::Collection::Union - Deal with multiple Jifty::DBI::Collection result sets as one

SYNOPSIS

	 use Jifty::DBI::Collection::Union;
	 my $U = new Jifty::DBI::Collection::Union;
	 $U->add( $tickets1 );
	 $U->add( $tickets2 );

	 $U->GotoFirstItem;
	 while (my $z = $U->Next) {
	   printf "%5d %30.30s
", $z->Id, $z->Subject;
	 }

WARNING

       This module is still experimental.

DESCRIPTION

       Implements a subset of the Jifty::DBI::Collection methods, but enough to do iteration over a bunch of results.  Useful for displaying the
       results of two unrelated searches (for the same kind of objects) in a single list.

METHODS

   new
       Create a new Jifty::DBI::Collection::Union object.  No arguments.

   add COLLECTION
       Add Jifty::DBI::Collection object COLLECTION to the Union object.

       It must be the same type as the first object added.

   first
       Return the very first element of the Union (which is the first element of the first Collection).  Also reset the current pointer to that
       element.

   next
       Return the next element in the Union.

   last
       Returns the last item

   count
       Returns the total number of elements in the union collection

   goto_first_item
       Starts the recordset counter over from the first item. the next time you call "next", you'll get the first item returned by the database,
       as if you'd just started iterating through the result set.

   goto_item
       Unlike "goto_item" in Jifty::DBI::Collection, Union only supports going to the first item in the collection.

   is_last
       Returns true if the current row is the last record in the set.

   items_array_ref
       Return a reference to an array containing all objects found by this search.

       Will destroy any positional state.

AUTHOR

       Copyright (c) 2004 Robert Spier

       All rights reserved.

       This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       Jifty::DBI, Jifty::DBI::Collection

perl v5.14.2							    2010-12-09					Jifty::DBI::Collection::Union(3pm)