<?php

namespace PSX\Model\SchemaOrg;

/**
 * @Description("A datasheet or vendor specification of a product (in the sense of a prototypical description).")
 */
class ProductModel extends Product implements \JsonSerializable
{
    /** @var ProductModel|null */
    protected $predecessorOf;

    /** @var ProductModel|null */
    protected $successorOf;

    /** @var ProductModel|null */
    protected $isVariantOf;

    /**
     * @param ProductModel|null $predecessorOf
     */
    public function setPredecessorOf(?ProductModel $predecessorOf): void
    {
        $this->predecessorOf = $predecessorOf;
    }

    /**
     * @return ProductModel|null
     */
    public function getPredecessorOf(): ?ProductModel
    {
        return $this->predecessorOf;
    }

    /**
     * @param ProductModel|null $successorOf
     */
    public function setSuccessorOf(?ProductModel $successorOf): void
    {
        $this->successorOf = $successorOf;
    }

    /**
     * @return ProductModel|null
     */
    public function getSuccessorOf(): ?ProductModel
    {
        return $this->successorOf;
    }

    /**
     * @param ProductModel|null $isVariantOf
     */
    public function setIsVariantOf(?ProductModel $isVariantOf): void
    {
        $this->isVariantOf = $isVariantOf;
    }

    /**
     * @return ProductModel|null
     */
    public function getIsVariantOf(): ?ProductModel
    {
        return $this->isVariantOf;
    }

    public function jsonSerialize()
    {
        return (object) array_merge((array) parent::jsonSerialize(), array_filter(array('predecessorOf' => $this->predecessorOf, 'successorOf' => $this->successorOf, 'isVariantOf' => $this->isVariantOf), static function ($value) : bool {
            return $value !== null;
        }));
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NjczMDYyODk2NzUzNDAyOCAxODc4MDAzOTQ0MTQyMDE4IDg5MDI0NDYzMTM3NjMzMTQ=