2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.yangtools.yang.model.api.stmt;
10 import java.util.Optional;
11 import javax.annotation.Nullable;
12 import org.opendaylight.yangtools.yang.common.QName;
14 public interface ContainerStatement extends DataDefinitionStatement,
15 DataDefinitionAwareDeclaredStatement.WithReusableDefinitions<QName>,
16 ActionStatementAwareDeclaredStatement<QName>, ConfigStatementAwareDeclaredStatement<QName>,
17 NotificationStatementAwareDeclaredStatement<QName>, MustStatementAwareDeclaredStatement<QName> {
18 default @Nullable PresenceStatement getPresence() {
19 final Optional<PresenceStatement> opt = findFirstDeclaredSubstatement(PresenceStatement.class);
20 return opt.isPresent() ? opt.get() : null;