<?php

namespace PSX\Model\SchemaOrg;

/**
 * @Description("The price asked for a given offer by the respective organization or person.")
 */
class UnitPriceSpecification extends PriceSpecification implements \JsonSerializable
{
    /** @var QuantitativeValue|null */
    protected $referenceQuantity;

    /** @var string|\PSX\Uri\Uri|null */
    protected $unitCode;

    /** @var string|null */
    protected $unitText;

    /** @var string|null */
    protected $priceType;

    /** @var float|null */
    protected $billingIncrement;

    /**
     * @param QuantitativeValue|null $referenceQuantity
     */
    public function setReferenceQuantity(?QuantitativeValue $referenceQuantity): void
    {
        $this->referenceQuantity = $referenceQuantity;
    }

    /**
     * @return QuantitativeValue|null
     */
    public function getReferenceQuantity(): ?QuantitativeValue
    {
        return $this->referenceQuantity;
    }

    /**
     * @param string|\PSX\Uri\Uri|null $unitCode
     */
    public function setUnitCode($unitCode): void
    {
        $this->unitCode = $unitCode;
    }

    /**
     * @return string|\PSX\Uri\Uri|null
     */
    public function getUnitCode()
    {
        return $this->unitCode;
    }

    /**
     * @param string|null $unitText
     */
    public function setUnitText(?string $unitText): void
    {
        $this->unitText = $unitText;
    }

    /**
     * @return string|null
     */
    public function getUnitText(): ?string
    {
        return $this->unitText;
    }

    /**
     * @param string|null $priceType
     */
    public function setPriceType(?string $priceType): void
    {
        $this->priceType = $priceType;
    }

    /**
     * @return string|null
     */
    public function getPriceType(): ?string
    {
        return $this->priceType;
    }

    /**
     * @param float|null $billingIncrement
     */
    public function setBillingIncrement(?float $billingIncrement): void
    {
        $this->billingIncrement = $billingIncrement;
    }

    /**
     * @return float|null
     */
    public function getBillingIncrement(): ?float
    {
        return $this->billingIncrement;
    }

    public function jsonSerialize()
    {
        return (object) array_merge((array) parent::jsonSerialize(), array_filter(array('referenceQuantity' => $this->referenceQuantity, 'unitCode' => $this->unitCode, 'unitText' => $this->unitText, 'priceType' => $this->priceType, 'billingIncrement' => $this->billingIncrement), static function ($value) : bool {
            return $value !== null;
        }));
    }
}
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