<?php

namespace ActivityPub\JsonLd\TripleStore;

/**
 * A triple represents a single fact in an RDF graph. A triple is made up a subject, a predicate, and an object.
 * The object can also have a type, e.g. "@id" for references to other resources or
 * "http://www.w3.org/2001/XMLSchema#dateTime" for date-time values.
 *
 * See https://www.w3.org/TR/rdf11-concepts/#data-model.
 *
 * Class Triple
 * @package ActivityPub\JsonLd\TripleStore
 */
class TypedRdfTriple
{
    /** @var string|null */
    private $subject;

    /** @var string|null */
    private $predicate;

    /** @var string|null */
    private $object;

    /** @var string|null */
    private $objectType;

    private function __construct($subject = null, $predicate = null, $object = null, $objectType = null)
    {
        $this->subject = $subject;
        $this->predicate = $predicate;
        $this->object = $object;
        $this->objectType = $objectType;
    }

    public static function create($subject = null, $predicate = null, $object = null, $objectType = null)
    {
        return new TypedRdfTriple( $subject, $predicate, $object, $objectType );
    }

    /**
     * @return string|null
     */
    public function getSubject()
    {
        return $this->subject;
    }

    /**
     * @param string $subject
     * @return TypedRdfTriple
     */
    public function setSubject($subject)
    {
        $this->subject = $subject;
        return $this;
    }

    /**
     * @return string|null
     */
    public function getPredicate()
    {
        return $this->predicate;
    }

    /**
     * @param string $predicate
     * @return TypedRdfTriple
     */
    public function setPredicate($predicate)
    {
        $this->predicate = $predicate;
        return $this;
    }

    /**
     * @return string|null
     */
    public function getObject()
    {
        return $this->object;
    }

    /**
     * @param string $object
     * @return TypedRdfTriple
     */
    public function setObject($object)
    {
        $this->object = $object;
        return $this;
    }

    /**
     * @return string|null
     */
    public function getObjectType()
    {
        return $this->objectType;
    }

    /**
     * @param string $objectType
     * @return TypedRdfTriple
     */
    public function setObjectType($objectType)
    {
        $this->objectType = $objectType;
        return $this;
    }

    /**
     * True if this triple has a subject, a predicate, and an object.
     * @return bool
     */
    public function isFullySpecified()
    {
        return $this->getSubject() && $this->getPredicate() && $this->getObject();
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODg5MDAyMDc2Mzc3MTk0OSAzOTYzMDkwNjQxMjM0OTcgMjQyOTg4NjYxNzM5MDQzMg==