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.impl.schema.tree;
10 import com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
14 final class ReplaceLeafCandidateNode extends AbstractWriteCandidate {
15 private final NormalizedNode<?, ?> oldData;
17 ReplaceLeafCandidateNode(final NormalizedNode<?, ?> oldData, final NormalizedNode<?, ?> newData) {
19 this.oldData = Preconditions.checkNotNull(oldData);
23 public Optional<NormalizedNode<?, ?>> getDataBefore() {
24 return Optional.<NormalizedNode<?, ?>>of(oldData);