ScalarValue.php

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<?php

namespace ILIAS\BackgroundTasks\Implementation\Values\ScalarValues;

use ILIAS\BackgroundTasks\Exceptions\InvalidArgumentException;
use ILIAS\BackgroundTasks\Implementation\Values\AbstractValue;
use ILIAS\BackgroundTasks\Value;

class ScalarValue extends AbstractValue
{

    protected $value;


    public function __construct()
    {
    }


    public function serialize()
    {
        return serialize($this->value);
    }


    public function unserialize($serialized)
    {
        $this->value = unserialize($serialized);
    }


    public function getHash()
    {
        return md5($this->serialize());
    }


    public function equals(Value $other)
    {
        if (!$other instanceof ScalarValue) {
            return false;
        }

        return $this->value == $other->getValue();
    }


    public function getValue()
    {
        return $this->value;
    }


    public function setValue($value)
    {
        if (!is_scalar($value)) {
            throw new InvalidArgumentException("The value given must be a scalar! See php-documentation is_scalar().");
        }

        $this->value = $value;
    }
}