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35 lines
637 B
PHP
35 lines
637 B
PHP
<?php
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namespace DesignPatterns\Behavioral\Specification;
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/**
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* A logical Not specification
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*/
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class Not extends AbstractSpecification
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{
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protected $spec;
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/**
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* Creates a new specification wrapping another
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*
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* @param SpecificationInterface $spec
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*/
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public function __construct(SpecificationInterface $spec)
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{
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$this->spec = $spec;
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}
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/**
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* Returns the negated result of the wrapped specification
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*
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* @param Item $item
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*
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* @return bool
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*/
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public function isSatisfiedBy(Item $item)
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{
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return !$this->spec->isSatisfiedBy($item);
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}
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}
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