2 * Copyright (c) 2017 Pantheon Technologies, s.r.o. 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.data.api.schema.tree;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.ImmutableList;
13 import java.util.Collection;
14 import javax.annotation.Nonnull;
15 import javax.annotation.Nullable;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
17 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
19 final class EmptyDataTreeCandidateNode implements DataTreeCandidateNode {
21 private final PathArgument identifier;
23 EmptyDataTreeCandidateNode(final PathArgument identifier) {
24 this.identifier = Preconditions.checkNotNull(identifier, "Identifier should not be null");
29 public PathArgument getIdentifier() {
35 public Collection<DataTreeCandidateNode> getChildNodes() {
36 return ImmutableList.of();
41 public DataTreeCandidateNode getModifiedChild(final PathArgument identifier) {
47 public ModificationType getModificationType() {
48 return ModificationType.UNMODIFIED;
53 public Optional<NormalizedNode<?, ?>> getDataAfter() {
54 return Optional.absent();
59 public Optional<NormalizedNode<?, ?>> getDataBefore() {
60 return Optional.absent();