Source of file MultiTerm.php
Size: 3,689 Bytes - Last Modified: 2021-12-23T10:29:30+00:00
/var/www/docs.ssmods.com/process/src/thirdparty/Zend/Search/Lucene/Search/Weight/MultiTerm.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143 | <?php /** * Zend Framework * * LICENSE * * This source file is subject to the new BSD license that is bundled * with this package in the file LICENSE.txt. * It is also available through the world-wide-web at this URL: * http://framework.zend.com/license/new-bsd * If you did not receive a copy of the license and are unable to * obtain it through the world-wide-web, please send an email * to license@zend.com so we can send you a copy immediately. * * @category Zend * @package Zend_Search_Lucene * @subpackage Search * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License * @version $Id: MultiTerm.php 20096 2010-01-06 02:05:09Z bkarwin $ */ /** * Zend_Search_Lucene_Search_Weight */ require_once 'Zend/Search/Lucene/Search/Weight.php'; /** * @category Zend * @package Zend_Search_Lucene * @subpackage Search * @copyright Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ class Zend_Search_Lucene_Search_Weight_MultiTerm extends Zend_Search_Lucene_Search_Weight { /** * IndexReader. * * @var Zend_Search_Lucene_Interface */ private $_reader; /** * The query that this concerns. * * @var Zend_Search_Lucene_Search_Query */ private $_query; /** * Query terms weights * Array of Zend_Search_Lucene_Search_Weight_Term * * @var array */ private $_weights; /** * Zend_Search_Lucene_Search_Weight_MultiTerm constructor * query - the query that this concerns. * reader - index reader * * @param Zend_Search_Lucene_Search_Query $query * @param Zend_Search_Lucene_Interface $reader */ public function __construct(Zend_Search_Lucene_Search_Query $query, Zend_Search_Lucene_Interface $reader ) { $this->_query = $query; $this->_reader = $reader; $this->_weights = array(); $signs = $query->getSigns(); foreach ($query->getTerms() as $id => $term) { if ($signs === null || $signs[$id] === null || $signs[$id]) { include_once 'Zend/Search/Lucene/Search/Weight/Term.php'; $this->_weights[$id] = new Zend_Search_Lucene_Search_Weight_Term($term, $query, $reader); $query->setWeight($id, $this->_weights[$id]); } } } /** * The weight for this query * Standard Weight::$_value is not used for boolean queries * * @return float */ public function getValue() { return $this->_query->getBoost(); } /** * The sum of squared weights of contained query clauses. * * @return float */ public function sumOfSquaredWeights() { $sum = 0; foreach ($this->_weights as $weight) { // sum sub weights $sum += $weight->sumOfSquaredWeights(); } // boost each sub-weight $sum *= $this->_query->getBoost() * $this->_query->getBoost(); // check for empty query (like '-something -another') if ($sum == 0) { $sum = 1.0; } return $sum; } /** * Assigns the query normalization factor to this. * * @param float $queryNorm */ public function normalize($queryNorm) { // incorporate boost $queryNorm *= $this->_query->getBoost(); foreach ($this->_weights as $weight) { $weight->normalize($queryNorm); } } } |