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<?php
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/**
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* This file contains the interface XML_Query2XML_Callback.
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*
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* PHP version 5
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*
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* @category XML
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* @package XML_Query2XML
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* @author Lukas Feiler <lukas.feiler@lukasfeiler.com>
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* @copyright 2009 Lukas Feiler
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* @license http://www.gnu.org/copyleft/lesser.html LGPL Version 2.1
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* @version CVS: $Id: Condition.php 309898 2011-04-02 17:38:08Z lukasfeiler $
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* @link http://pear.php.net/package/XML_Query2XML
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*/
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/**
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* XML_Query2XML_Data_Condition extends the class
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* XML_Query2XML_Data_Processor.
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*/
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require_once 'XML/Query2XML/Data/Processor.php';
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/**
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* Abstract class extended by all Data Condition Classes.
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* Such classes allow the implementation of a condition as to
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* whether the return value of execute() is to be used.
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*
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* @category XML
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* @package XML_Query2XML
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* @author Lukas Feiler <lukas.feiler@lukasfeiler.com>
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* @copyright 2009 Lukas Feiler
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* @license http://www.gnu.org/copyleft/lesser.html LGPL Version 2.1
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* @version Release: 1.7.2
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* @link http://pear.php.net/package/XML_Query2XML
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* @since Release 1.7.1RC1
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*/
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abstract class XML_Query2XML_Data_Condition extends XML_Query2XML_Data_Processor
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{
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/**
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* Returns a boolean value indicating whether the return value of execute()
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* is to be used.
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*
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* @param mixed $value The return value of execute()
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*
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* @return boolean
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*/
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abstract public function evaluateCondition($value);
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/**
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* Called by XML_Query2XML for every record in the result set.
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*
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* @param array $record An associative array.
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*
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* @return mixed Whatever is returned by the pre-processor.
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* @throws XML_Query2XML_ConfigException Bubbles up if no
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* pre-processor was set.
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*/
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public function execute(array $record)
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{
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return $this->runPreProcessor($record);
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}
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}
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?>
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