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 static com.google.common.base.Verify.verifyNotNull;
12 import java.util.Optional;
13 import org.eclipse.jdt.annotation.NonNull;
14 import org.eclipse.jdt.annotation.Nullable;
15 import org.opendaylight.yangtools.yang.common.QName;
16 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
18 @Rfc6020AbnfRule("argument-stmt")
19 public interface ArgumentStatement extends DeclaredStatement<QName> {
20 default @NonNull QName getName() {
21 // FIXME: YANGTOOLS-908: verifyNotNull() should not be needed here
22 return verifyNotNull(argument());
25 default @Nullable YinElementStatement getYinElement() {
26 final Optional<YinElementStatement> opt = findFirstDeclaredSubstatement(YinElementStatement.class);
27 return opt.isPresent() ? opt.get() : null;