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<?php
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/**
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* This file contains the class XML_Query2XML_Data_Condition_NonEmpty.
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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: NonEmpty.php 276636 2009-03-01 12:58:57Z lukasfeiler $
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* @link http://pear.php.net/package/XML_Query2XML
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* @access private
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*/
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/**
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* XML_Query2XML_Data_Condition_NonEmpty extends
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* XML_Query2XML_Data_Condition.
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*/
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require_once 'XML/Query2XML/Data/Condition.php';
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/**
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* Data Condition Class implementing a condition based on whether the
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* value returned by a pre-processor is an object or a non-empty string.
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*
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* XML_Query2XML_Data_Condition_NonEmpty requires a pre-processor to be used.
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*
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* usage:
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* <code>
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* $commandObject = new XML_Query2XML_Data_Condition_NonEmpty(
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* new XML_Query2XML_Data_Source_ColumnValue('name') //pre-processor
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* );
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* </code>
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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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* @access private
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* @since Release 1.7.1RC1
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*/
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class XML_Query2XML_Data_Condition_NonEmpty extends XML_Query2XML_Data_Condition
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{
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/**
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* Create a new instance of this class.
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*
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* @param mixed $preProcessor The pre-processor to be used. An instance of
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* XML_Query2XML_Data or null.
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* @param string $configPath The configuration path within the $options
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* array.
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*
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* @return XML_Query2XML_Data_Condition_NonEmpty
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*/
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public function create($preProcessor, $configPath)
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{
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$condition = new XML_Query2XML_Data_Condition_NonEmpty($preProcessor);
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$condition->setConfigPath($configPath);
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return $condition;
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}
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/**
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* As this class implements XML_Query2XML_Data_Condition, XML_Query2XML
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* will call this method to determin whether the condition is fulfilled.
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*
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* @param mixed $value The value previously returned by $this->execute().
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*
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* @return boolean Whether the condition is fulfilled.
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*/
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public function evaluateCondition($value)
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{
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return is_object($value) ||
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!(is_null($value) || (is_string($value) && strlen($value) == 0));
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}
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}
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?>
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