<?php
/*
 *  $Id$
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * This software consists of voluntary contributions made by many individuals
 * and is licensed under the LGPL. For more information, see
 * <http://www.phpdoctrine.com>.
 */

/**
 * @package     Doctrine
 * @url         http://www.phpdoctrine.com
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @author      Jukka Hassinen <Jukka.Hassinen@BrainAlliance.com>
 * @version     $Id$
/**
 * class Doctrine_Schema
 * Holds information on one to many databases
 * @package     Doctrine
 * @category    Object Relational Mapping
 * @link        www.phpdoctrine.com
 * @license     http://www.opensource.org/licenses/lgpl-license.php LGPL
 * @since       1.0
 * @version     $Revision$
 * @author      Konsta Vesterinen <kvesteri@cc.hut.fi>
 */
class Doctrine_Schema extends Doctrine_Schema_Object implements Countable, IteratorAggregate {
    /**
     * Holds any number of databases contained in the schema
     * @access private
     */
    private $childs;


    /**
     *
     * @param Doctrine_Schema_Database database      * @return 
     * @access public
     */
    public function addDatabase( Doctrine_Schema_Database $database ) {
         $this->childs[] = $database;      
    }
    
    /**
     * Return the childs for this schema
     *
     * @return array of Doctrine_Schema_Database
     *
     */
    public function getDatabases(){
         return $this->childs;
    }
    /**
     *
     * @return 
     * @access public
     */
    public function __toString( ) {
        
    }
    /**
     *
     * @return bool
     * @access public
     */
    public function isValid( ) {
        
    }
}