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.Collection;
11 import java.util.Optional;
12 import javax.annotation.Nonnull;
13 import org.opendaylight.yangtools.yang.common.QName;
15 public interface ListStatement extends MultipleElementsDeclaredStatement,
16 DataDefinitionAwareDeclaredStatement.WithReusableDefinitions<QName>,
17 ConfigStatementAwareDeclaredStatement<QName>, ActionStatementAwareDeclaredStatement<QName>,
18 MustStatementAwareDeclaredStatement<QName>, NotificationStatementAwareDeclaredStatement<QName> {
19 default KeyStatement getKey() {
20 final Optional<KeyStatement> opt = findFirstDeclaredSubstatement(KeyStatement.class);
21 return opt.isPresent() ? opt.get() : null;
24 default @Nonnull Collection<? extends UniqueStatement> getUnique() {
25 return declaredSubstatements(UniqueStatement.class);