<?php

namespace CorpusParole\Libraries\RdfModel;

use CorpusParole\Libraries\RdfModel\RdfModelDelta;

use EasyRdf\Resource;

/**

 *

 */

class RdfModelResource extends Resource {

    public function __construct($uri, $graph = null) {

        parent::__construct($uri, $graph);

        $this->uri = $uri;

    }

    protected $deltaList = [];

    protected $currentDelta = null;

    protected $uri = null;

    public function isDirty() {

        return !is_null($this->deltaList) && count($this->deltaList)>0;

    }

    public function deltaCount() {

        return is_null($this->deltaList)?0:count($this->deltaList);

    }

    public function getDeltaList() {

        return $this->deltaList;

    }

    public function getUri() {

        return $this->uri;

    }

    public function startDelta() {

        $this->currentDelta = new RdfModelDelta($this->getGraph()->getUri());

        array_push($this->deltaList, $this->currentDelta);

    }

}