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 reader delegate.
23 public class DelegatingJournalReader<E> implements JournalReader<E> {
24 private final JournalReader<E> delegate;
26 public DelegatingJournalReader(JournalReader<E> delegate) {
27 this.delegate = delegate;
31 public long getFirstIndex() {
32 return delegate.getFirstIndex();
36 public long getCurrentIndex() {
37 return delegate.getCurrentIndex();
41 public Indexed<E> getCurrentEntry() {
42 return delegate.getCurrentEntry();
46 public long getNextIndex() {
47 return delegate.getNextIndex();
51 public boolean hasNext() {
52 return delegate.hasNext();
56 public Indexed<E> next() {
57 return delegate.next();
66 public void reset(long index) {
67 delegate.reset(index);
76 public String toString() {
77 return toStringHelper(this)
78 .add("delegate", delegate)