<?php

/*

 * Copyright 2011 Johannes M. Schmitt <schmittjoh@gmail.com>

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

namespace Metadata;

/**

 * Represents the metadata for the entire class hierarchy.

 *

 * @author Johannes M. Schmitt <schmittjoh@gmail.com>

 */

class ClassHierarchyMetadata

{

    public $classMetadata = array();

    public function addClassMetadata(ClassMetadata $metadata)

    {

        $this->classMetadata[$metadata->name] = $metadata;

    }

    public function getRootClassMetadata()

    {

        return reset($this->classMetadata);

    }

    public function getOutsideClassMetadata()

    {

        return end($this->classMetadata);

    }

    public function isFresh($timestamp)

    {

        foreach ($this->classMetadata as $metadata) {

            if (!$metadata->isFresh($timestamp)) {

                return false;

            }

        }

        return true;

    }

}