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.data.api.schema.tree;
10 import static java.util.Objects.requireNonNull;
12 import java.util.Optional;
13 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
15 final class ReplaceLeafCandidateNode extends AbstractWriteCandidate {
16 private final NormalizedNode oldData;
18 ReplaceLeafCandidateNode(final NormalizedNode oldData, final NormalizedNode newData) {
20 this.oldData = requireNonNull(oldData);
24 public Optional<NormalizedNode> getDataBefore() {
25 return Optional.of(oldData);