qunar.tc.qmq.task.store.LeaderElectionDao Maven / Gradle / Ivy

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/*
 * Copyright 2018 Qunar, Inc.
 *
 * 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 qunar.tc.qmq.task.store;

import qunar.tc.qmq.task.LeaderElectionRecord;

public interface LeaderElectionDao {

    LeaderElectionRecord queryByName(String name);

    int elect(String name, String node, long lastSeenActive, long maxLeaderErrorTime);

    int renewedRent(String name, String node);

    int forciblyAssumeLeadership(String key, String node);

    int initLeader(String key, String node);

    int setLeaderEmptyIfLeaderIsMine(String leaderElectionKey, String currentNode);
}