core_cache\data_source_interface Interface Reference

Inheritance diagram for core_cache\data_source_interface:

Public Member Functions
	load_for_cache ($key)
	Loads the data for the key provided ready formatted for caching.
	load_many_for_cache (array $keys)
	Loads several keys for the cache.

Static Public Member Functions
static	get_instance_for_cache (definition $definition)
	Returns an instance of the data source class that the cache can use for loading data using the other methods specified by this interface.

Detailed Description

Copyright

2012 Sam Hemelryk

License

http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Member Function Documentation

get_instance_for_cache()

static core_cache\data_source_interface::get_instance_for_cache ( definition $definition )

static

Returns an instance of the data source class that the cache can use for loading data using the other methods specified by this interface.

Parameters

definition

$definition

Return values

object

Implemented in core_course\cache\course_image, core_message\time_last_message_between_users, mod_assign\cache\overrides, mod_lesson\cache\overrides, mod_quiz\cache\overrides, mod_scorm\cache\elements, and question_finder.

load_for_cache()

core_cache\data_source_interface::load_for_cache

(

$key

)

Loads the data for the key provided ready formatted for caching.

Parameters

string | int

$key

The key to load.

Return values

mixed

What ever data should be returned, or false if it can't be loaded.

Implemented in core_course\cache\course_image, core_message\time_last_message_between_users, mod_assign\cache\overrides, mod_lesson\cache\overrides, mod_quiz\cache\overrides, mod_scorm\cache\elements, and question_finder.

load_many_for_cache()

core_cache\data_source_interface::load_many_for_cache

(

array

$keys

)

Loads several keys for the cache.

Parameters

array

$keys

An array of keys each of which will be string|int.

Return values

array

An array of matching data items.

Implemented in core_course\cache\course_image, core_message\time_last_message_between_users, mod_assign\cache\overrides, mod_lesson\cache\overrides, mod_quiz\cache\overrides, mod_scorm\cache\elements, and question_finder.

---

The documentation for this interface was generated from the following file:

• cache/classes/data_source_interface.php