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<?php |
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namespace Metabor\KeyValue; |
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/** |
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* @author otischlinger |
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*/ |
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class Composite implements \ArrayAccess |
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{ |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $container; |
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/** |
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* |
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*/ |
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public function __construct() |
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{ |
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$this->container = new \SplObjectStorage(); |
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} |
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/** |
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* @param \ArrayAccess $keyValue |
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*/ |
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public function attach(\ArrayAccess $keyValue) |
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{ |
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$this->container->attach($keyValue); |
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} |
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/** |
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* @param \ArrayAccess $keyValue |
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*/ |
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public function detach(\ArrayAccess $keyValue) |
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{ |
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$this->container->detach($keyValue); |
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} |
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/** |
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* @see ArrayAccess::offsetExists() |
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*/ |
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public function offsetExists($offset) |
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{ |
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if ($this->container->count()) { |
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$result = true; |
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/* @var $keyValue \ArrayAccess */ |
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foreach ($this->container as $keyValue) { |
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$result = $result && $keyValue->offsetExists($offset); |
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} |
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return $result; |
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} else { |
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return false; |
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} |
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} |
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/** |
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* @see ArrayAccess::offsetGet() |
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*/ |
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public function offsetGet($offset) |
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{ |
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$values = array(); |
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/* @var $keyValue \ArrayAccess */ |
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foreach ($this->container as $keyValue) { |
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$values[] = $keyValue->offsetGet($offset); |
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} |
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$values = array_unique($values, SORT_REGULAR); |
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switch (count($values)) { |
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case 0: |
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return; |
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case 1: |
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return reset($values); |
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default: |
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throw new \RuntimeException('Offset "' . $offset . '" is not unique!'); |
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} |
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} |
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/** |
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* @see ArrayAccess::offsetSet() |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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/* @var $keyValue \ArrayAccess */ |
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foreach ($this->container as $keyValue) { |
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$keyValue->offsetSet($offset, $value); |
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} |
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} |
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/** |
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* @see ArrayAccess::offsetUnset() |
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*/ |
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public function offsetUnset($offset) |
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{ |
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/* @var $keyValue \ArrayAccess */ |
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foreach ($this->container as $keyValue) { |
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$keyValue->offsetUnset($offset); |
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} |
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} |
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} |
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Metabor /
Statemachine
