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Rose::DB::Registry.3pm
Langue: en
Version: 2008-12-01 (ubuntu - 08/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
Rose::DB::Registry - Data source registry.SYNOPSIS
use Rose::DB::Registry; $registry = Rose::DB::Registry->new; $registry->add_entry( domain => 'development', type => 'main', driver => 'Pg', database => 'dev_db', host => 'localhost', username => 'devuser', password => 'mysecret', server_time_zone => 'UTC'); $entry = Rose::DB::Registry::Entry->new( domain => 'production', type => 'main', driver => 'Pg', database => 'big_db', host => 'dbserver.acme.com', username => 'dbadmin', password => 'prodsecret', server_time_zone => 'UTC'); $registry->add_entry($entry); $entry = $registry->entry(domain => 'development', type => 'main'); $registry->entry_exists(domain => 'foo', type => 'bar'); # false $registry->delete_entry(domain => 'development', type => 'main'); ...
DESCRIPTION
Rose::DB::Registry objects manage information about Rose::DB data sources. Each data source has a corresponding Rose::DB::Registry::Entry object that contains its information. The registry entries are organized in a two-level namespace based on a ``domain'' and a ``type.'' See the Rose::DB documentation for more information on data source domains and types.Rose::DB::Registry inherits from, and follows the conventions of, Rose::Object. See the Rose::Object documentation for more information.
CONSTRUCTOR
- new PARAMS
- Constructs a Rose::DB::Registry object based on PARAMS, where PARAMS are name/value pairs. Any object method is a valid parameter name.
OBJECT METHODS
- add_entries ENTRY1 [, ENTRY2, ...]
- Add registry entries. Each ENTRY must be either a Rose::DB::Registry::Entry-derived object or reference to a hash of name/value pairs. The name/value pairs must be valid arguments for Rose::DB::Registry::Entry's constructor.
Each ENTRY must have a defined domain and type, either in the Rose::DB::Registry::Entry-derived object or in the name/value pairs. A fatal error will occur if these values are not defined.
If a registry entry for the specified domain and type already exists, then the new entry will overwrite it. If you want to know beforehand whether or not an entry exists under a specific domain and type, use the entry_exists method.
Returns a list (in list context) or reference to an array (in scalar context) of Rose::DB::Registry::Entry objects added.
- add_entry ENTRY
- Add a registry entry. ENTRY must be either a Rose::DB::Registry::Entry-derived object or a list of name/value pairs. The name/value pairs must be valid arguments for Rose::DB::Registry::Entry's constructor.
The ENTRY must have a defined domain and type, either in the Rose::DB::Registry::Entry-derived object or in the name/value pairs. A fatal error will occur if these values are not defined.
If a registry entry for the specified domain and type already exists, then the new entry will overwrite it. If you want to know beforehand whether or not an entry exists under a specific domain and type, use the entry_exists method.
Returns the Rose::DB::Registry::Entry object added.
- dump
- Returns a reference to a hash containing information about all registered data sources. The hash is structured like this:
{ domain1 => { type1 => { # Rose::DB::Registry::Entry attributes # generated by its dump() method driver => ..., database => ..., host => ..., ... }, type2 => { ... }, ... }, domain2 => { ... }, ... }
All the registry entry attribute values are copies, not the actual values.
- delete_domain DOMAIN
- Delete an entire domain, including all the registry entries under that domain.
- delete_entry PARAMS
- Delete the registry entry specified by PARAMS, where PARAMS must be name/value pairs with defined values for "domain" and "type". A fatal error will occur if either one is missing or undefined.
If the specified entry does not exist, undef is returned. Otherwise, the deleted entry is returned.
- entry PARAMS
- Get the registry entry specified by PARAMS, where PARAMS must be name/value pairs with defined values for "domain" and "type". A fatal error will occur if either one is missing or undefined. If the specified entry does not exist, undef is returned.
- entry_exists PARAMS
- Returns true if the registry entry specified by PARAMS exists, false otherwise. PARAMS must be name/value pairs with defined values for "domain" and "type". A fatal error will occur if either one is missing or undefined.
- registered_types DOMAIN
- Returns a list (in list context) or reference to an array (in scalar context) of the names of all registered types under the domain named DOMAIN.
- registered_domains
- Returns a list (in list context) or reference to an array (in scalar context) of the names of all registered domains.
AUTHOR
John C. Siracusa (siracusa@gmail.com)LICENSE
Copyright (c) 2008 by John C. Siracusa. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.Contenus ©2006-2024 Benjamin Poulain
Design ©2006-2024 Maxime Vantorre