\Charcoal\FactoryMapFactory

The Map Factory resolves the **class name** from an associative array with the **type** key.

Class dependencies:

Name	Type	Description
`base_class`	string	Optional. A base class (or interface) to ensure a type of object.
`default_class`	string	Optional. A default class, as fallback when the requested object is not resolvable.
`arguments`	array	Optional. Constructor arguments that will be passed along to created instances.
`callback`	Callable	Optional. A callback function that will be called upon object creation.
`resolver`	Callable	Optional. A class resolver. If none is provided, a default will be used.
`resolver_options`	array	Optional. Resolver options (prefix, suffix, capitals and replacements). This is ignored / unused if `resolver` is provided.

Summary

Methods

Properties

Constants

__construct()
create()
get()
setBaseClass()
baseClass()
setDefaultClass()
defaultClass()
setArguments()
arguments()
setCallback()
callback()
resolve()
isResolvable()

No public properties found

No constants found

createClass()
resolver()
map()
addClassToMap()

$resolved

N/A

runCallbacks()
setResolver()
setMap()

$baseClass
$defaultClass
$arguments
$callback
$instances
$resolver
$map

N/A

File: MapFactory.php
Package: Default
Class hierarchy: \Charcoal\Factory\AbstractFactory

\Charcoal\Factory\MapFactory

Properties

$resolved

$resolved : array

Type

array

$baseClass

$baseClass : string

If a base class is set, then it must be ensured that the

Type

string

$defaultClass

$defaultClass : string

Type

string

$arguments

$arguments : array

Type

array

$callback

$callback : callable

Type

callable

$instances

$instances : array

Keeps loaded instances in memory, in `[$type => $instance]` format.

Used with the get() method only.

Type

array

$resolver

$resolver : Callable

Type

Callable

$map

$map : array<mixed,string>

The class map array holds available types, in `[$type => $className]` format.

Type

array<mixed,string>

Methods

__construct()

__construct(array  $data = null)

Parameters

array

$data

Constructor dependencies.

create()

create(string  $type, array  $args = null, callable  $cb = null) : mixed

Create a new instance of a class, by type.

Unlike get(), this method always return a new instance of the requested class.

Object callback

It is possible to pass a callback method that will be executed upon object instanciation. The callable should have a signature: function($obj); where $obj is the newly created object.

Parameters

string	$type	The type (class ident).
array	$args	Optional. Constructor arguments (will override the arguments set on the class from constructor).
callable	$cb	Optional. Object callback, called at creation. Will run in addition to the default callback, if any.

Throws

\Exception: If the base class is set and the resulting instance is not of the base class.
\InvalidArgumentException: If type argument is not a string or is not an available type.

Returns

mixed —

The instance / object

get()

get(string  $type, array  $args = null) : mixed

Get (load or create) an instance of a class, by type.

Unlike create() (which always call a new instance), this function first tries to load / reuse an already created object of this type, from memory.

Parameters

string	$type	The type (class ident).
array	$args	The constructor arguments (optional).

Throws

\InvalidArgumentException: If type argument is not a string.

Returns

mixed —

The instance / object

setBaseClass()

setBaseClass(string  $type) : \Charcoal\Factory\FactoryInterface

If a base class is set, then it must be ensured that the created objects are `instanceof` this base class.

Parameters

string

$type

The FQN of the class, or "type" of object, to set as base class.

Throws

\InvalidArgumentException: If the class is not a string or is not an existing class / interface.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

baseClass()

baseClass() : string

A base class name (or interface)

Returns

string —

The FQN of the base class

setDefaultClass()

setDefaultClass(string  $type) : \Charcoal\Factory\FactoryInterface

If a default class is set, then calling `get()` or `create()` an invalid type should return an object of this class instead of throwing an error.

Parameters

string

$type

The FQN of the class, or "type" of object, to set as default class.

Throws

\InvalidArgumentException: If the class name is not a string or not a valid class.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

defaultClass()

defaultClass() : string

Returns

string —

The FQN of the default class

setArguments()

setArguments(array  $arguments) : \Charcoal\Factory\FactoryInterface

Parameters

array

$arguments

The constructor arguments to be passed to the created object's initialization.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

arguments()

arguments() : array

Returns

array

setCallback()

setCallback(callable  $callback) : \Charcoal\Factory\FactoryInterface

Parameters

callable

$callback

The object callback.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

callback()

callback() : callable|null

Returns

callable|null

resolve()

resolve(string  $type) : string

The Generic factory resolves the class name from an exact FQN.

Parameters

string

$type

The "type" of object to resolve (the object ident).

Throws

\InvalidArgumentException: If the type parameter is not a string.

Returns

string —

The resolved class name (FQN).

isResolvable()

isResolvable(string  $type) : boolean

Wether a `type` is resolvable. The Generic Factory simply checks if the _FQN_ `type` class exists.

Parameters

string

$type

The "type" of object to resolve (the object ident).

Throws

\InvalidArgumentException: If the type parameter is not a string.

Returns

boolean

createClass()

createClass(string  $classname, mixed  $args) : mixed

Create a class instance with given arguments.

How the constructor arguments are passed depends on its type:

if null, no arguments are passed at all.
if it's not an array, it's passed as a single argument.
if it's an associative array, it's passed as a sing argument.
if it's a sequential (numeric keys) array, it's

Parameters

string	$classname	The FQN of the class to instanciate.
mixed	$args	The constructor arguments.

Returns

mixed —

The created object.

resolver()

resolver() : callable

Returns

callable

map()

map() : array<mixed,string>

Get the map of all types in `[$type => $class]` format.

Returns

array<mixed,string>

addClassToMap()

addClassToMap(string  $type, string  $className) : \Charcoal\Factory\FactoryInterface

Add a class name to the available types _map_.

Parameters

string	$type	The type (class ident).
string	$className	The FQN of the class.

Throws

\InvalidArgumentException: If the $type parameter is not a striing or the $className class does not exist.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

runCallbacks()

runCallbacks(mixed  $obj, callable  $customCallback = null) : void

Run the callback(s) on the object, if applicable.

Parameters

mixed	$obj	The object to pass to callback(s).
callable	$customCallback	An optional additional custom callback.

setResolver()

setResolver(callable  $resolver) : \Charcoal\Factory\FactoryInterface

Parameters

callable

$resolver

The class resolver instance to use.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable

setMap()

setMap(array<mixed,string>  $map) : \Charcoal\Factory\FactoryInterface

Add multiple types, in a an array of `type` => `className`.

Parameters

array<mixed,string>

$map

The map (key=>classname) to use.

Returns

\Charcoal\Factory\FactoryInterface —

Chainable