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<?php |
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/** |
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* |
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* This file is part of the Aura project for PHP. |
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* |
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* @package Aura.Marshal |
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* |
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* @license https://opensource.org/licenses/mit-license.php MIT |
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* |
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*/ |
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namespace Aura\Marshal; |
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/** |
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* |
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* Represents a data set. This is similar to the SPL ArrayObject, but allows |
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* you easier access to the underlying data itself. This class serves as a |
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* base for ... |
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* |
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* - the generic type object, where $data represents an IdentityMap; |
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* |
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* - the generic entity object, where $data represents the entity fields; and |
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* |
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* - the generic collection object, where $data represents an array of |
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* entities. |
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* |
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* @package Aura.Marshal |
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* |
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* @implements \ArrayAccess<int|string, mixed> |
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* @implements \IteratorAggregate<int|string, mixed> |
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* |
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*/ |
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class Data implements \ArrayAccess, \Countable, \IteratorAggregate |
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{ |
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/** |
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* |
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* Key-value pairs of data. |
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* |
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* @var array<int|string, GenericEntity|mixed> |
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* |
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*/ |
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protected $data = []; |
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/** |
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* |
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* Constructor. |
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* |
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* @param array<int|string, mixed> $data The data for this object. |
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* |
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*/ |
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public function __construct(array $data = []) |
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{ |
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$this->data = $data; |
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} |
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/** |
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* |
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* ArrayAccess: does the requested key exist? |
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* |
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* @param int|string $key The requested key. |
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* |
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* @return bool |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetExists($key) |
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{ |
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return array_key_exists($key, $this->data); |
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} |
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/** |
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* |
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* ArrayAccess: get a key value. |
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* |
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* @param int|string $key The requested key. |
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* |
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* @return mixed |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetGet($key) |
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{ |
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return $this->data[$key]; |
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} |
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/** |
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* |
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* ArrayAccess: set a key value. |
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* |
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* @param int|string $key The requested key. |
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* |
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* @param mixed $val The value to set it to. |
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* |
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* @return void |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetSet($key, $val) |
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{ |
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$this->data[$key] = $val; |
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} |
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/** |
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* |
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* ArrayAccess: unset a key. |
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* |
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* @param int|string $key The requested key. |
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* |
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* @return void |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function offsetUnset($key) |
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{ |
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unset($this->data[$key]); |
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} |
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/** |
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* |
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* Countable: how many keys are there? |
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* |
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* @return int |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function count() |
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{ |
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return count($this->data); |
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} |
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/** |
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* |
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* IteratorAggregate: returns an external iterator for this struct. |
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* |
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* @return DataIterator |
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* |
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*/ |
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#[\ReturnTypeWillChange] |
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public function getIterator() |
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{ |
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return new DataIterator($this, array_keys($this->data)); |
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} |
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} |
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