/**
 * Copyright (C) 2009-2013 FoundationDB, LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.foundationdb.qp.operator;

public interface Cursor extends RowCursor, QueryBindingsCursor
{
    /** Open this cursor for top-level execution: opens the bindings
     * stream and then the cursor within the only bindings.
     */
    public QueryBindings openTopLevel();

    /** Close top-level execution: check that there are no further
     * bindings and close cursor and bindings.
     */
    public void closeTopLevel();
}