1Data::ObjectDriver::DriUvseerr::CCoancthreiD:ba:utAtape:ad:cOhPbeej(re3lcptmDD)orciuvmeern:t:aDtriiovner::Cache::Apache(3pm)
2
3
4
6 Data::ObjectDriver::Driver::Cache::Apache - object driver for caching
7 objects in Apache's request space
8
10 package MyObject;
11 use base qw( Data::ObjectDriver::BaseObject );
12
13 __PACKAGE__->install_properties({
14 ...
15 driver => Data::ObjectDriver::Driver::Cache::Apache->new(
16 fallback => Data::ObjectDriver::Driver::Cache::Memcached->new(
17 cache => Cache::Memcached->new({ servers => \@MEMCACHED_SERVERS }),
18 fallback => Data::ObjectDriver::Driver::DBI->new( @$DBI_INFO ),
19 ),
20 ),
21 ...
22 });
23
24 1;
25
27 Data::ObjectDriver::Driver::Cache::Apache provides automatic caching of
28 retrieved objects in the per-request memory space of your Apache
29 mod_perl processes, when used in conjunction with your actual object
30 driver. It can be used to provide even faster results over memcached
31 when requesting objects that have already been requested during the
32 same request by some other part of your application, at the cost of the
33 memory necessary to store the objects.
34
35 If your models can be used in an Apache mod_perl application as well as
36 another context such as a command line shell, consider replacing the
37 Apache layer of your caching with a
38 "Data::ObjectDriver::Driver::Cache::RAM" layer when Apache is not
39 available. See Data::ObjectDriver::Driver::Cache::Apache.
40
42 · Data::ObjectDriver::Driver::Cache::Apache->new(%params)
43
44 Required members of %params are:
45
46 · "fallback"
47
48 The "Data::ObjectDriver" object driver from which to request
49 objects that are not found in the Apache process cache.
50
52 The Apache driver provides integration with the "Data::ObjectDriver"
53 debug and profiling systems. As these systems are designed around SQL
54 queries, synthetic queries are logged to represent caching operations.
55 The operations generated by this driver are:
56
57 · "APACHECACHE_GET ?"
58
59 Retrieve an object. The argument is the cache key for the requested
60 object.
61
62 · "APACHECACHE_ADD ?,?"
63
64 Add an object to the cache. The arguments are the cache key for the
65 object and the flattened representation of the object to cache.
66
67 · "APACHECACHE_SET ?,?"
68
69 Put an object in the cache. The arguments are the cache key for the
70 object and the flattened representation of the object to cache.
71
72 · "APACHECACHE_DELETE ?"
73
74 Remove an object from the cache. The argument is the cache key for
75 the object to invalidate.
76
78 Apache, Apache2::RequestUtil
79
81 Data::ObjectDriver is free software; you may redistribute it and/or
82 modify it under the same terms as Perl itself.
83
85 Except where otherwise noted, Data::ObjectDriver is Copyright 2005-2006
86 Six Apart, cpan@sixapart.com. All rights reserved.
87
88
89
90perl v5.30.1 Da2t0a2:0:-O0b1j-e2c9tDriver::Driver::Cache::Apache(3pm)