Current File : /www/varak.net/wiki.varak.net/extensions/CirrusSearch/includes/Search/EmptyResultSet.php
<?php
namespace CirrusSearch\Search;
/**
* An empty set of results from Elasticsearch.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*/
class EmptyResultSet extends ResultSet {
/**
* Override parent constructor with empty one
*/
public function __construct() {
}
/**
* Is rewriting this query OK?
*
* @param int $threshold Minimum number of results to reach before rewriting is not allowed.
* @return bool True when rewriting this query is allowed
*/
public function isQueryRewriteAllowed( $threshold = 1 ) {
return false;
}
/**
* @return int
*/
public function getTotalHits() {
return 0;
}
/**
* @return int
*/
public function numRows() {
return 0;
}
/**
* @return bool
*/
public function hasSuggestion() {
return false;
}
/**
* @return string|null
*/
public function getSuggestionQuery() {
return null;
}
/**
* @return string|null
*/
public function getSuggestionSnippet() {
return null;
}
/**
* @return false
*/
public function next() {
return false;
}
public function rewind() {
}
/**
* @param ResultSet $res
* @param int $type One of SearchResultSet::* constants
* @param string $interwiki
*/
public function addInterwikiResults( ResultSet $res, $type, $interwiki ) {
throw new \RuntimeException( "Can't add interwiki results to empty result set" );
}
/**
* @param int $type
* @return SearchResultSet[]
*/
public function getInterwikiResults( $type = SearchResultSet::SECONDARY_RESULTS ) {
return [];
}
/**
* @param int $type
* @return bool
*/
public function hasInterwikiResults( $type = SearchResultSet::SECONDARY_RESULTS ) {
return false;
}
/**
* @return bool
*/
public function searchContainedSyntax() {
// actually unknown, but close enough
return false;
}
/**
* @param string $newQuery
* @param string|null $newQuerySnippet
*/
public function setRewrittenQuery($newQuery, $newQuerySnippet=null) {
throw new \Exception( "Can't rewrite empty result set" );
}
/**
* @return bool
*/
public function hasRewrittenQuery() {
return false;
}
/**
* @return string|null
*/
public function getQueryAfterRewrite() {
return null;
}
/**
* @return string|null
*/
public function getQueryAfterRewriteSnippet() {
return null;
}
}
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