QueryBackend.php

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<?php
 
namespace MediaWiki\RecentChanges\ChangesListQuery;
 
use Wikimedia\Rdbms\IExpression;
 
interface QueryBackend {
    public const DENSITY_LINKS = 'links';
    public const DENSITY_WATCHLIST = 'watchlist';
    public const DENSITY_USER = 'user';
    public const DENSITY_CHANGE_TAG_THRESHOLD = 'change-tag-threshold';
 
    public const JOIN_ORDER_RECENTCHANGES = 'recentchanges';
    public const JOIN_ORDER_OTHER = 'other';
 
    public function joinForFields( string $table ): ChangesListJoinBuilder;
 
    public function joinForConds( string $table ): ChangesListJoinBuilder;
 
    public function distinct(): self;
 
    public function adjustDensity( $density ): self;
 
    public function joinOrderHint( string $order ): self;
 
    public function where( IExpression $expr ): self;
 
    public function fields( $fields ): self;
 
    public function rcUserFields(): self;
 
    public function forceEmptySet(): self;
 
    public function isEmptySet(): bool;
}