Class ConnectionRegistry
A registry object for connection instances.
Property Summary
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$_loaded protected
arrayMap of loaded objects.
Method Summary
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__debugInfo() public
Debug friendly object properties.
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__get() public
Provide public read access to the loaded objects
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__isset() public
Provide isset access to _loaded
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_checkDuplicate() protected
Check for duplicate object loading.
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_create() protected
Create the connection object with the correct settings.
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_resolveClassName() protected
Resolve a driver classname.
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_throwMissingClassError() protected
Throws an exception when a driver is missing
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get() public
Get loaded object instance.
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has() public
Check whether or not a given object is loaded.
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load() public
Loads/constructs an object instance.
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loaded() public
Get the list of loaded objects.
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normalizeArray() public
Normalizes an object array, creates an array that makes lazy loading easier
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reset() public
Clear loaded instances in the registry.
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set() public
Set an object directly into the registry by name.
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unload() public
Remove a single adapter from the registry.
Method Detail
__get() ¶ public
__get(string $name): mixedProvide public read access to the loaded objects
Parameters
-
string$name Name of property to read
Returns
mixed__isset() ¶ public
__isset(string $name): boolProvide isset access to _loaded
Parameters
-
string$name Name of object being checked.
Returns
bool_checkDuplicate() ¶ protected
_checkDuplicate(string $name, array $config): voidCheck for duplicate object loading.
If a duplicate is being loaded and has different configuration, that is bad and an exception will be raised.
An exception is raised, as replacing the object will not update any references other objects may have. Additionally, simply updating the runtime configuration is not a good option as we may be missing important constructor logic dependent on the configuration.
Parameters
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string$name The name of the alias in the registry.
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array$config The config data for the new instance.
Returns
voidThrows
RuntimeExceptionWhen a duplicate is found.
_create() ¶ protected
_create(string $class, string $alias, array $settings): objectCreate the connection object with the correct settings.
Part of the template method for Cake\Core\ObjectRegistry::load()
Parameters
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string$class The classname or object to make.
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string$alias The alias of the object.
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array$settings An array of settings to use for the driver.
Returns
objectA connection with the correct settings.
_resolveClassName() ¶ protected
_resolveClassName(string $class): string|falseResolve a driver classname.
Part of the template method for Cake\Core\ObjectRegistry::load()
Parameters
-
string$class Partial classname to resolve.
Returns
string|falseEither the correct classname or false.
_throwMissingClassError() ¶ protected
_throwMissingClassError(string $class, string $plugin): voidThrows an exception when a driver is missing
Part of the template method for Cake\Core\ObjectRegistry::load()
Parameters
-
string$class The classname that is missing.
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string$plugin The plugin the driver is missing in.
Returns
voidThrows
Cake\Datasource\Exception\MissingDatasourceExceptionget() ¶ public
get(string $name): object|nullGet loaded object instance.
Parameters
-
string$name Name of object.
Returns
object|nullObject instance if loaded else null.
has() ¶ public
has(string $name): boolCheck whether or not a given object is loaded.
Parameters
-
string$name The object name to check for.
Returns
boolTrue is object is loaded else false.
load() ¶ public
load(string $objectName, array $config = []): mixedLoads/constructs an object instance.
Will return the instance in the registry if it already exists.
If a subclass provides event support, you can use $config['enabled'] = false
to exclude constructed objects from being registered for events.
Using Cake\Controller\Controller::$components as an example. You can alias an object by setting the 'className' key, i.e.,
public $components = [
'Email' => [
'className' => '\App\Controller\Component\AliasedEmailComponent'
];
];All calls to the Email component would use AliasedEmail instead.
Parameters
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string$objectName The name/class of the object to load.
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array$config optional Additional settings to use when loading the object.
Returns
mixedloaded() ¶ public
loaded(): arrayGet the list of loaded objects.
Returns
arrayList of object names.
normalizeArray() ¶ public
normalizeArray(array $objects): arrayNormalizes an object array, creates an array that makes lazy loading easier
Parameters
-
array$objects Array of child objects to normalize.
Returns
arrayArray of normalized objects.
reset() ¶ public
reset(): voidClear loaded instances in the registry.
If the registry subclass has an event manager, the objects will be detached from events as well.
Returns
voidset() ¶ public
set(string $objectName, object $object): voidSet an object directly into the registry by name.
If this collection implements events, the passed object will be attached into the event manager
Parameters
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string$objectName The name of the object to set in the registry.
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object$object instance to store in the registry
Returns
voidunload() ¶ public
unload(string $name): voidRemove a single adapter from the registry.
If this registry has an event manager, the object will be detached from any events as well.
Parameters
-
string$name The adapter name.
Returns
void