2 * Copyright 2017-present Open Networking Foundation
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
16 package io.atomix.storage.journal;
18 import static com.google.common.base.MoreObjects.toStringHelper;
21 * Journal writer delegate.
23 public class DelegatingJournalWriter<E> implements JournalWriter<E> {
24 private final JournalWriter<E> delegate;
26 public DelegatingJournalWriter(JournalWriter<E> delegate) {
27 this.delegate = delegate;
31 public long getLastIndex() {
32 return delegate.getLastIndex();
36 public Indexed<E> getLastEntry() {
37 return delegate.getLastEntry();
41 public long getNextIndex() {
42 return delegate.getNextIndex();
46 public <T extends E> Indexed<T> append(T entry) {
47 return delegate.append(entry);
51 public void append(Indexed<E> entry) {
52 delegate.append(entry);
56 public void commit(long index) {
57 delegate.commit(index);
61 public void reset(long index) {
62 delegate.reset(index);
66 public void truncate(long index) {
67 delegate.truncate(index);
81 public String toString() {
82 return toStringHelper(this)
83 .add("delegate", delegate)