Callback Class Reference

Inheritance diagram for Callback:

Public Member Functions
	__construct ($callable, $arguments=null, $createInstance=false)
	setArguments ($arguments=null)
	getValue ()

Protected Attributes
	$_callable
	$_arguments
	$_createInstance

Detailed Description

Definition at line 10 of file Callback.php.

Constructor & Destructor Documentation

__construct()

__construct	(		$callable,
			$arguments = null,
			$createInstance = false
	)

Create callback

Parameters

callable	$callable
mixed	$arguments
bool	$createInstance	If true than $callable[0] will be evaluated to new instance of class when get value

Definition at line 34 of file Callback.php.

    {
        $this->_callable = $callable;
        $this->setArguments($arguments);
        $this->_createInstance = $createInstance;
    }

Member Function Documentation

getValue()

getValue

(

)

Get callback value

Returns

mixed

Exceptions

Implements OptionInterface.

Definition at line 64 of file Callback.php.

    {
        $callable = $this->_callable;

        if (is_array($callable) && isset($callable[0]) && is_string($callable[0])) {
            if (!class_exists($callable[0])) {
                throw new \InvalidArgumentException(sprintf('Class "%s" was not found', $callable[0]));
            }
            if ($this->_createInstance) {
                $callable[0] = new $callable[0]();
            }
        } elseif ($this->_createInstance) {
            throw new \InvalidArgumentException('Callable expected to be an array with class name as first element');
        }

        if (!is_callable($callable)) {
            throw new \InvalidArgumentException('Callback does not callable');
        }

        if ($this->_arguments) {
            return call_user_func_array($callable, $this->_arguments);
        } else {
            return call_user_func($callable);
        }
    }

setArguments()

setArguments

(

$arguments = null

)

Set callback arguments

Parameters

mixed

$arguments

Returns

void

Definition at line 47 of file Callback.php.

    {
        if (is_array($arguments)) {
            $this->_arguments = $arguments;
        } elseif (null !== $arguments) {
            $this->_arguments = [$arguments];
        } else {
            $this->_arguments = null;
        }
    }

Field Documentation

$_arguments

$_arguments

protected

Definition at line 20 of file Callback.php.

$_callable

$_callable

protected

Definition at line 15 of file Callback.php.

$_createInstance

$_createInstance

protected

Definition at line 25 of file Callback.php.

---

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

• vendor/magento/framework/Validator/Constraint/Option/Callback.php