152 lines
2.8 KiB
PHP
152 lines
2.8 KiB
PHP
<?php
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/*
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* (c) Markus Lanthaler <mail@markus-lanthaler.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace ML\JsonLD;
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use ML\IRI\IRI;
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/**
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* A quad
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*
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* @author Markus Lanthaler <mail@markus-lanthaler.com>
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*/
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class Quad
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{
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/**
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* The subject
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*
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* @var IRI
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*/
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private $subject;
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/**
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* The property or predicate
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*
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* @var IRI
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*/
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private $property;
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/**
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* The object
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*
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* @var Value|IRI
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*/
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private $object;
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/**
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* The graph
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*
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* @var IRI
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*/
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private $graph;
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/**
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* Constructor
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*
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* @param IRI $subject The subject.
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* @param IRI $property The property.
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* @param Value|IRI $object The object.
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* @param null|IRI $graph The graph.
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*
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* @throws InvalidArgumentException If the object parameter has a wrong type
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*/
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public function __construct(IRI $subject, IRI $property, $object, IRI $graph = null)
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{
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$this->subject = $subject;
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$this->property = $property;
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$this->setObject($object); // use setter which checks the type
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$this->graph = $graph;
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}
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/**
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* Set the subject
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*
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* @param IRI $subject The subject
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*/
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public function setSubject(IRI $subject)
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{
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$this->subject = $subject;
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}
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/**
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* Get the subject
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*
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* @return IRI The subject
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*/
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public function getSubject()
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{
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return $this->subject;
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}
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/**
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* Set the property
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*
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* @param IRI $property The property
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*/
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public function setProperty(IRI $property)
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{
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$this->property = $property;
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}
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/**
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* Get the property
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*
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* @return IRI The property
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*/
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public function getProperty()
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{
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return $this->property;
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}
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/**
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* Set the object
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*
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* @param IRI|Value $object The object
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*
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* @throws InvalidArgumentException If object is of wrong type.
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*/
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public function setObject($object)
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{
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if (!($object instanceof IRI) && !($object instanceof Value)) {
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throw new \InvalidArgumentException('Object must be an IRI or Value object');
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}
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$this->object = $object;
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}
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/**
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* Get the object
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*
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* @return IRI|Value The object
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*/
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public function getObject()
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{
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return $this->object;
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}
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/**
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* Set the graph
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*
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* @param null|IRI $graph The graph
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*/
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public function setGraph(IRI $graph = null)
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{
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$this->graph = $graph;
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}
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/**
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* Get the graph
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*
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* @return IRI The graph
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*/
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public function getGraph()
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{
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return $this->graph;
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}
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}
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