source: Dev/branches/rest-dojo-ui/jos-branch/server/rdfapi/resModel/ResAlt.php @ 312

<?php
// ----------------------------------------------------------------------------------
// Class: ResAlt
// ----------------------------------------------------------------------------------

/**
* This interface defines methods for accessing RDF Alternative resources. 
* These methods operate on the RDF statements contained in a model.
*
* @version  $Id: ResAlt.php 320 2006-11-21 09:38:51Z tgauss $
* @author Daniel Westphal <mail at d-westphal dot de>
*
* @package      resModel
* @access       public
**/
class ResAlt extends ResContainer 
{
        
        /**
    * Constructor
        * You can supply a URI
    *
    * @param string $uri 
        * @access       public
    */  
        function ResAlt($uri = null)
        {
                parent::ResContainer($uri);
                $this->containerType=new ResResource(RDF_NAMESPACE_URI.RDF_ALT);
        }
        
        /**
        *  Return the default value for this resource
        *
        * @return       object ResResource/ResLiteral 
        * @access       public
        */
        function getDefault()
        {
                //get the first memeber
                $statements=$this->listProperties($this->_getMembershipPropertyWithIndex(1));
                if(isset($statements[0]))
                {
                        //return the value
                        return $statements[0]->getObject();
                } else 
                {
                        return null;
                }
        }
        
        /**
        *  Set the default value of this container.
        *
        * @param        object ResResource/ResLiteral $object
        * @access       public
        */
        function setDefault($object)
        {
                //remember the old default value
                $oldDefaultObject=$this->getDefault();
                //if there wasn't a default value before
                if($oldDefaultObject === null)
                {
                        //add the new value
                        $this->addProperty($this->_getMembershipPropertyWithIndex(1),$object);
                } else 
                {
                        //remove the old value
                        $this->removeAll($this->_getMembershipPropertyWithIndex(1));
                        //set the new value
                        $this->addProperty($this->_getMembershipPropertyWithIndex(1),$object);
                        //add the old default value at the end
                        $this->add($oldDefaultObject);
                }
        }
}
?>