PrimitiveTypeDescription.inc.php

<?php
import('lib.pkp.classes.filter.TypeDescription');
import('lib.pkp.classes.filter.TypeDescriptionFactory');
 
class PrimitiveTypeDescription extends TypeDescription {
   var $_primitiveType;
 
   function __construct($typeName) {
      parent::__construct($typeName);
   }
 
 
   //
   // Setters and Getters
   //
   function getNamespace() {
      return TYPE_DESCRIPTION_NAMESPACE_PRIMITIVE;
   }
 
 
   //
   // Implement abstract template methods from TypeDescription
   //
   function parseTypeName($typeName) {
      // This should be a primitive type
      if (!in_array($typeName, $this->_supportedPrimitiveTypes())) return false;
 
      $this->_primitiveType = $typeName;
      return true;
   }
 
   function checkType(&$object) {
      // We expect a primitive type
      if (!is_scalar($object)) return false;
 
      // Check the type
      if ($this->_getPrimitiveTypeName($object) != $this->_primitiveType) return false;
 
      return true;
   }
 
 
   //
   // Private helper methods
   //
   function _getPrimitiveTypeName(&$variable) {
      assert(!(is_object($variable) || is_array($variable) || is_null($variable)));
 
      // FIXME: When gettype's implementation changes as mentioned
      // in <http://www.php.net/manual/en/function.gettype.php> then
      // we have to manually re-implement this method.
      return str_replace('double', 'float', gettype($variable));
   }
 
   static function _supportedPrimitiveTypes() {
      static $supportedPrimitiveTypes = array(
         'string', 'integer', 'float', 'boolean'
      );
      return $supportedPrimitiveTypes;
   }
}