/** * 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 abstract class OperatorCursor extends OperatorExecutionBase implements Cursor { protected OperatorCursor(QueryContext context) { super(context); } @Override public QueryBindings openTopLevel() { openBindings(); QueryBindings bindings = nextBindings(); assert (bindings != null); open(); return bindings; } @Override public void closeTopLevel() { close(); closeBindings(); } }