1Rose::DB::Registry(3) User Contributed Perl DocumentationRose::DB::Registry(3)
2
6 Rose::DB::Registry - Data source registry.
7
9 use Rose::DB::Registry;
10 $registry = Rose::DB::Registry->new;
12 $registry->add_entry(
14 domain => 'development',
15 type => 'main',
16 driver => 'Pg',
17 database => 'dev_db',
18 host => 'localhost',
19 username => 'devuser',
20 password => 'mysecret',
21 server_time_zone => 'UTC');
22 $entry = Rose::DB::Registry::Entry->new(
24 domain => 'production',
25 type => 'main',
26 driver => 'Pg',
27 database => 'big_db',
28 host => 'dbserver.acme.com',
29 username => 'dbadmin',
30 password => 'prodsecret',
31 server_time_zone => 'UTC');
32 $registry->add_entry($entry);
34 $entry = $registry->entry(domain => 'development', type => 'main');
36 $registry->entry_exists(domain => 'foo', type => 'bar'); # false
38 $registry->delete_entry(domain => 'development', type => 'main');
40 ...
42
44 Rose::DB::Registry objects manage information about Rose::DB data
45 sources. Each data source has a corresponding
46 Rose::DB::Registry::Entry object that contains its information. The
47 registry entries are organized in a two-level namespace based on a
48 "domain" and a "type." See the Rose::DB documentation for more
49 information on data source domains and types.
50 Rose::DB::Registry inherits from, and follows the conventions of,
52 Rose::Object. See the Rose::Object documentation for more information.
53
55 new PARAMS
56 Constructs a Rose::DB::Registry object based on PARAMS, where
57 PARAMS are name/value pairs. Any object method is a valid
58 parameter name.
59
61 add_entries ENTRY1 [, ENTRY2, ...]
62 Add registry entries. Each ENTRY must be either a
63 Rose::DB::Registry::Entry-derived object or reference to a hash of
64 name/value pairs. The name/value pairs must be valid arguments for
65 Rose::DB::Registry::Entry's constructor.
66 Each ENTRY must have a defined domain and type, either in the
68 Rose::DB::Registry::Entry-derived object or in the name/value
69 pairs. A fatal error will occur if these values are not defined.
70 If a registry entry for the specified domain and type already
72 exists, then the new entry will overwrite it. If you want to know
73 beforehand whether or not an entry exists under a specific domain
74 and type, use the entry_exists method.
75 Returns a list (in list context) or reference to an array (in
77 scalar context) of Rose::DB::Registry::Entry objects added.
78 add_entry ENTRY
80 Add a registry entry. ENTRY must be either a
81 Rose::DB::Registry::Entry-derived object or a list of name/value
82 pairs. The name/value pairs must be valid arguments for
83 Rose::DB::Registry::Entry's constructor.
84 The ENTRY must have a defined domain and type, either in the
86 Rose::DB::Registry::Entry-derived object or in the name/value
87 pairs. A fatal error will occur if these values are not defined.
88 If a registry entry for the specified domain and type already
90 exists, then the new entry will overwrite it. If you want to know
91 beforehand whether or not an entry exists under a specific domain
92 and type, use the entry_exists method.
93 Returns the Rose::DB::Registry::Entry object added.
95 dump
97 Returns a reference to a hash containing information about all
98 registered data sources. The hash is structured like this:
99 {
101 domain1 =>
102 {
103 type1 =>
104 {
105 # Rose::DB::Registry::Entry attributes
106 # generated by its dump() method
107 driver => ...,
108 database => ...,
109 host => ...,
110 ...
111 },
112 type2 =>
114 {
115 ...
116 },
117 ...
118 },
119 domain2 =>
121 {
122 ...
123 },
124 ...
126 }
127 All the registry entry attribute values are copies, not the actual
129 values.
130 delete_domain DOMAIN
132 Delete an entire domain, including all the registry entries under
133 that domain.
134 delete_entry PARAMS
136 Delete the registry entry specified by PARAMS, where PARAMS must be
137 name/value pairs with defined values for "domain" and "type". A
138 fatal error will occur if either one is missing or undefined.
139 If the specified entry does not exist, undef is returned.
141 Otherwise, the deleted entry is returned.
142 entry PARAMS
144 Get the registry entry specified by PARAMS, where PARAMS must be
145 name/value pairs with defined values for "domain" and "type". A
146 fatal error will occur if either one is missing or undefined. If
147 the specified entry does not exist, undef is returned.
148 entry_exists PARAMS
150 Returns true if the registry entry specified by PARAMS exists,
151 false otherwise. PARAMS must be name/value pairs with defined
152 values for "domain" and "type". A fatal error will occur if either
153 one is missing or undefined.
154 registered_types DOMAIN
156 Returns a list (in list context) or reference to an array (in
157 scalar context) of the names of all registered types under the
158 domain named DOMAIN.
159 registered_domains
161 Returns a list (in list context) or reference to an array (in
162 scalar context) of the names of all registered domains.
163
165 John C. Siracusa (siracusa@gmail.com)
166
168 Copyright (c) 2010 by John C. Siracusa. All rights reserved. This
169 program is free software; you can redistribute it and/or modify it
170 under the same terms as Perl itself.
171perl v5.30.0 2019-08-09 Rose::DB::Registry(3)