1 files changed, 133 insertions, 0 deletions
diff --git a/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/MultiTerm.php b/demos/quickstart/protected/index/Zend/Search/Lucene/Search/Weight/MultiTerm.php
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@@ -0,0 +1,133 @@
+<?php
+/**
+ * Zend Framework
+ *
+ * LICENSE
+ *
+ * This source file is subject to version 1.0 of the Zend Framework
+ * license, that is bundled with this package in the file LICENSE, and
+ * is available through the world-wide-web at the following URL:
+ * http://www.zend.com/license/framework/1_0.txt. If you did not receive
+ * a copy of the Zend Framework license and are unable to obtain it
+ * through the world-wide-web, please send a note to license@zend.com
+ * so we can mail you a copy immediately.
+ *
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @copyright  Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
+ */
+
+
+/** Zend_Search_Lucene_Search_Weight */
+require_once 'Zend/Search/Lucene/Search/Weight.php';
+
+
+/**
+ * @package    Zend_Search_Lucene
+ * @subpackage Search
+ * @copyright  Copyright (c) 2005-2006 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://www.zend.com/license/framework/1_0.txt Zend Framework License version 1.0
+ */
+class Zend_Search_Lucene_Search_Weight_MultiTerm extends Zend_Search_Lucene_Search_Weight
+{
+    /**
+     * IndexReader.
+     *
+     * @var Zend_Search_Lucene
+     */
+    private $_reader;
+
+    /**
+     * The query that this concerns.
+     *
+     * @var Zend_Search_Lucene_Search_Query_MultiTerm
+     */
+    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_MultiTerm $query
+     * @param Zend_Search_Lucene $reader
+     */
+    public function __construct($query, $reader)
+    {
+        $this->_query   = $query;
+        $this->_reader  = $reader;
+        $this->_weights = array();
+
+        $signs = $query->getSigns();
+
+        foreach ($query->getTerms() as $num => $term) {
+            if ($signs === null || $signs[$num] === null || $signs[$num]) {
+                $this->_weights[$num] = new Zend_Search_Lucene_Search_Weight_Term($term, $query, $reader);
+                $query->setWeight($num, $this->_weights[$num]);
+            }
+        }
+    }
+
+
+    /**
+     * The weight for this query
+     *
+     * @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);
+        }
+    }
+}
+
+