/**
* Re-write query into primitive queries in the context of specified index
*
* @param \Zend\Search\Lucene\SearchIndex $index
* @return \Zend\Search\Lucene\Search\Query\AbstractQuery
*/
public function rewrite(Lucene\SearchIndex $index)
{
if (count($this->_terms) == 0) {
return new EmptyResult();
} else if ($this->_terms[0]->field !== null) {
return $this;
} else {
$query = new Boolean();
$query->setBoost($this->getBoost());
foreach ($index->getFieldNames(true) as $fieldName) {
$subquery = new self();
$subquery->setSlop($this->getSlop());
foreach ($this->_terms as $termId => $term) {
$qualifiedTerm = new Index\Term($term->text, $fieldName);
$subquery->addTerm($qualifiedTerm, $this->_offsets[$termId]);
}
$query->addSubquery($subquery);
}
return $query;
}
}
function copy()
{
$copy = new self();
foreach ($this->terms as $term) {
$copy->addTerm($term->copy());
}
return $copy;
}
