interface/modules/zend_modules/library/Zend/Db/Sql/ExpressionInterface.php

   1 <?php
   2 /**
   3  * Zend Framework (http://framework.zend.com/)
   4  *
   5  * @link      http://github.com/zendframework/zf2 for the canonical source repository
   6  * @copyright Copyright (c) 2005-2013 Zend Technologies USA Inc. (http://www.zend.com)
   7  * @license   http://framework.zend.com/license/new-bsd New BSD License
   8  */
   9
  10 namespace Zend\Db\Sql;
  11
  12 interface ExpressionInterface
  13 {
  14     const TYPE_IDENTIFIER = 'identifier';
  15     const TYPE_VALUE = 'value';
  16     const TYPE_LITERAL = 'literal';
  17
  18     /**
  19      * @deprecated This will go away in 2.1
  20      */
  21     const TYPE_SELECT = 'select';
  22
  23     /**
  24      * @abstract
  25      *
  26      * @return array of array|string should return an array in the format:
  27      *
  28      * array (
  29      *    // a sprintf formatted string
  30      *    string $specification,
  31      *
  32      *    // the values for the above sprintf formatted string
  33      *    array $values,
  34      *
  35      *    // an array of equal length of the $values array, with either TYPE_IDENTIFIER or TYPE_VALUE for each value
  36      *    array $types,
  37      * )
  38      *
  39      */
  40     public function getExpressionData();
  41 }