MetaData.php

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<?php
namespace TYPO3\CMS\Core\Package;

/*
 * This file is part of the TYPO3 CMS project.
 *
 * It is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License, either version 2
 * of the License, or any later version.
 *
 * For the full copyright and license information, please read the
 * LICENSE.txt file that was distributed with this source code.
 *
 * The TYPO3 project - inspiring people to share!
 */

class MetaData
{
    const CONSTRAINT_TYPE_DEPENDS = 'depends';
    const CONSTRAINT_TYPE_CONFLICTS = 'conflicts';
    const CONSTRAINT_TYPE_SUGGESTS = 'suggests';

    protected static $CONSTRAINT_TYPES = [self::CONSTRAINT_TYPE_DEPENDS, self::CONSTRAINT_TYPE_CONFLICTS, self::CONSTRAINT_TYPE_SUGGESTS];

    protected $packageKey;

    protected $packageType;

    protected $version;

    protected $title;

    protected $description;

    protected $constraints = [];

    public function getConstraintTypes()
    {
        return self::$CONSTRAINT_TYPES;
    }

    public function __construct($packageKey)
    {
        $this->packageKey = $packageKey;
    }

    public function getPackageKey()
    {
        return $this->packageKey;
    }

    public function getPackageType()
    {
        return $this->packageType;
    }

    public function setPackageType($packageType)
    {
        $this->packageType = $packageType;
    }

    public function getVersion()
    {
        return $this->version;
    }

    public function setVersion($version)
    {
        $this->version = $version;
    }

    public function getDescription()
    {
        return $this->description;
    }

    public function setDescription($description)
    {
        $this->description = $description;
    }

    public function getConstraints()
    {
        return $this->constraints;
    }

    public function getConstraintsByType($constraintType)
    {
        if (!isset($this->constraints[$constraintType])) {
            return [];
        }
        return $this->constraints[$constraintType];
    }

    public function addConstraint(MetaData\PackageConstraint $constraint)
    {
        $this->constraints[$constraint->getConstraintType()][] = $constraint;
    }
}