<?php
 
//
// Open Web Analytics - An Open Source Web Analytics Framework
//
// Copyright 2006 Peter Adams. All rights reserved.
//
// Licensed under GPL v2.0 http://www.gnu.org/copyleft/gpl.html
//
// 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.
//
// $Id$
//
 
/**
 * Abstract Calculated Metric
 * 
 * @author      Peter Adams <peter@openwebanalytics.com>
 * @copyright   Copyright &copy; 2006 Peter Adams <peter@openwebanalytics.com>
 * @license     http://www.gnu.org/copyleft/gpl.html GPL v2.0
 * @category    owa
 * @package     owa
 * @version             $Revision$            
 * @since               owa 1.3.0
 */
 
class owa_calculatedMetric extends owa_metric {
        
        var $is_calculated = true;
        var $child_metrics = array();
        var $formula;
        
        function setChildMetric($name) {
                
                $this->child_metrics[] = $name;
        }
        
        function getChildMetrics() {
                
                return $this->child_metrics;
        }       
        
        function setFormula($string) {
                
                $this->formula = $string;
        }
        
        function getFormula() {
        
                return $this->formula;
        }       
}
 
?>