
com.alipay.sofa.jraft.ReadOnlyService Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.alipay.sofa.jraft;
import com.alipay.sofa.jraft.closure.ReadIndexClosure;
import com.alipay.sofa.jraft.error.RaftException;
import com.alipay.sofa.jraft.option.ReadOnlyServiceOptions;
/**
* The read-only query service.
*
* @author dennis
*
*/
public interface ReadOnlyService extends Lifecycle {
/**
* Adds a ReadIndex request.
*
* @param reqCtx request context of readIndex
* @param closure callback
*/
void addRequest(final byte[] reqCtx, final ReadIndexClosure closure);
/**
* Waits for service shutdown.
*
* @throws InterruptedException if the current thread is interrupted
* while waiting
*/
void join() throws InterruptedException;
/**
* Called when the node is turned into error state.
* @param error error with raft info
*/
void setError(final RaftException error);
}
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