/** * Optimize query in the context of specified index * * @param \Zend\Search\Lucene\IndexInterface $index * @return \Zend\Search\Lucene\Search\Query\AbstractQuery */ public function optimize(Lucene\IndexInterface $index) { // Check, that index contains all phrase terms foreach ($this->_terms as $term) { if (!$index->hasTerm($term)) { return new EmptyResult(); } } if (count($this->_terms) == 1) { // It's one term query $optimizedQuery = new Term(reset($this->_terms)); $optimizedQuery->setBoost($this->getBoost()); return $optimizedQuery; } if (count($this->_terms) == 0) { return new EmptyResult(); } return $this; }
/** * Optimize query in the context of specified index * * @param \Zend\Search\Lucene\IndexInterface $index * @return \Zend\Search\Lucene\Search\Query\AbstractQuery */ public function optimize(Lucene\IndexInterface $index) { // Check, that index contains specified term if (!$index->hasTerm($this->_term)) { return new EmptyResult(); } return $this; }
/** * Optimize query in the context of specified index * * @param \Zend\Search\Lucene\IndexInterface $index * @return \Zend\Search\Lucene\Search\Query\AbstractQuery */ public function optimize(Lucene\IndexInterface $index) { $terms = $this->_terms; $signs = $this->_signs; foreach ($terms as $id => $term) { if (!$index->hasTerm($term)) { if ($signs === null || $signs[$id] === true) { // Term is required return new EmptyResult(); } else { // Term is optional or prohibited // Remove it from terms and signs list unset($terms[$id]); unset($signs[$id]); } } } // Check if all presented terms are prohibited $allProhibited = true; if ($signs === null) { $allProhibited = false; } else { foreach ($signs as $sign) { if ($sign !== false) { $allProhibited = false; break; } } } if ($allProhibited) { return new EmptyResult(); } /** * @todo make an optimization for repeated terms * (they may have different signs) */ if (count($terms) == 1) { // It's already checked, that it's not a prohibited term // It's one term query with one required or optional element $optimizedQuery = new Term(reset($terms)); $optimizedQuery->setBoost($this->getBoost()); return $optimizedQuery; } if (count($terms) == 0) { return new EmptyResult(); } $optimizedQuery = new MultiTerm($terms, $signs); $optimizedQuery->setBoost($this->getBoost()); return $optimizedQuery; }