com.hazelcast.cp.internal.raft.impl.persistence.NopRaftStateStore Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2020, Hazelcast, Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.cp.internal.raft.impl.persistence;
import com.hazelcast.cp.internal.raft.impl.RaftEndpoint;
import com.hazelcast.cp.internal.raft.impl.log.LogEntry;
import com.hazelcast.cp.internal.raft.impl.log.SnapshotEntry;
import javax.annotation.Nonnull;
import java.util.Collection;
/**
* Used when a Raft node works transiently (its state is not persisted).
*/
public final class NopRaftStateStore implements RaftStateStore {
/**
* Non-persisting {@link RaftStateStore} instance
*/
public static final RaftStateStore INSTANCE = new NopRaftStateStore();
private NopRaftStateStore() {
}
@Override
public void open() {
}
@Override
public void persistInitialMembers(
@Nonnull RaftEndpoint localMember,
@Nonnull Collection initialMembers
) {
}
@Override
public void persistTerm(int term, @Nonnull RaftEndpoint votedFor) {
}
@Override
public void persistEntry(@Nonnull LogEntry entry) {
}
@Override
public void persistSnapshot(@Nonnull SnapshotEntry entry) {
}
@Override
public void deleteEntriesFrom(long startIndexInclusive) {
}
@Override
public void flushLogs() {
}
@Override
public void close() {
}
}