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   1  <?php
   2  //--------------------------------------------------------------------------------
   3  // Copyright 2003 Procata, Inc.
   4  // Released under the LGPL license (http://www.gnu.org/copyleft/lesser.html)
   5  //--------------------------------------------------------------------------------
   6  /**
   7  * @package WACT_UTIL
   8  * @version $Id: datasetdecorator.inc.php,v 1.6 2004/11/26 18:24:43 jeffmoore Exp $
   9  */
  10  
  11  /**
  12  * Provides a base class to use for decorating DataSpaces
  13  * @see http://wact.sourceforge.net/index.php/DataSpaceDecorator
  14  * @access public
  15  * @package WACT_UTIL
  16  */
  17  class DataSpaceDecorator /* implements DataSource */ {
  18      /**
  19      * The data set being decorated
  20      * @var object
  21      * @access private
  22      */
  23      var $dataset;
  24  
  25      /**
  26      * Constructs DataSetDecorator
  27      * @param object data set to decorate
  28      * @access public
  29      */
  30  	function DataSpaceDecorator(&$dataset) {
  31          $this->dataset =& $dataset;
  32      }
  33  
  34  	function get($name) {
  35          return $this->dataset->get($name);
  36      }
  37  
  38  	function set($name, $value) {
  39          $this->dataset->set($name, $value);
  40      }
  41  
  42      function remove($name) {
  43          $this->dataset->remove($name);
  44      }
  45  
  46      function removeAll() {
  47          $this->dataset->removeAll();
  48      }
  49  
  50      function import($property_list) {
  51          $this->dataset->import($property_list);
  52      }
  53          
  54  	function merge($property_list) {
  55          $this->dataset->merge($property_list);
  56      }
  57  
  58      function &export() {
  59          return $this->dataset->export();
  60      }
  61      
  62  	function isDataSource() {
  63          return TRUE;
  64      }
  65      
  66      function hasProperty($name) {
  67          return $this->dataset->hasProperty($name);
  68      }
  69      
  70      /**
  71      * @param object instance of filter class containing a doFilter() method
  72      * @return void
  73      * @access public
  74      */
  75  	function registerFilter(&$filter) {
  76          $this->dataset->registerFilter($filter);
  77      }
  78      
  79      /**
  80      * @return void
  81      * @access protected
  82      */
  83  	function prepare() {
  84          $this->dataset->prepare();
  85      }
  86  }
  87  
  88  
  89  /**
  90  * Provides a base class to use for decorating datasets
  91  * @see http://wact.sourceforge.net/index.php/DataSetDecorator
  92  * @access public
  93  * @package WACT_UTIL
  94  */
  95  class DataSetDecorator extends DataSpaceDecorator /* implements Interator */ {
  96  
  97      /**
  98      * Constructs DataSetDecorator
  99      * @param object data set to decorate
 100      * @access public
 101      */
 102  	function DataSetDecorator(&$dataset) {
 103          parent::DataSpaceDecorator($dataset);
 104      }
 105  
 106  	function reset() {
 107          $this->dataset->reset();
 108      }
 109  
 110  	function next() {
 111          return $this->dataset->next();
 112      }
 113  
 114  }
 115  ?>