// Path: src/main/java/org/tools4j/hoverraft/command/CommandLog.java
// public interface CommandLog {
//     long size();
//     default long lastIndex() {
//         return size() - 1;
//     }
//     int readTerm(long index);
//     void readTo(long index, LogKey target);
//     void readTo(long index, CommandKey target);
//     void readTo(long index, LogEntry target);
// 
//     void append(int term, Command command);
//     void truncateIncluding(long index);
// 
//     default int lastTerm() {
//         return readTerm(lastIndex());
//     }
// 
//     default void lastKeyTo(final LogKey target) {
//         readTo(lastIndex(), target);
//     }
// 
//     default int lastKeyCompareTo(final LogKey logKey) {
//         final int termCompare = Integer.compare(lastTerm(), logKey.term());
//         return termCompare == 0 ? Long.compare(lastIndex(), logKey.index()) : termCompare;
//     }
// 
//     boolean contains(CommandKey commandKey);
//     default LogContainment contains(final LogKey logKey) {
//         return LogContainment.containmentFor(logKey, this);
//     }
// 
// }


import org.tools4j.hoverraft.command.CommandLog;
/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2017 hover-raft (tools4j), Marco Terzer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.tools4j.hoverraft.state;



public interface PersistentState {

    int NOT_VOTED_YET = -1;

    int currentTerm();

    int votedFor();

    int clearVotedForAndSetCurrentTerm(int term);

    int clearVotedForAndIncCurrentTerm();

    void votedFor(final int candidateId);

// Path: src/main/java/org/tools4j/hoverraft/command/CommandLog.java
// public interface CommandLog {
//     long size();
//     default long lastIndex() {
//         return size() - 1;
//     }
//     int readTerm(long index);
//     void readTo(long index, LogKey target);
//     void readTo(long index, CommandKey target);
//     void readTo(long index, LogEntry target);
// 
//     void append(int term, Command command);
//     void truncateIncluding(long index);
// 
//     default int lastTerm() {
//         return readTerm(lastIndex());
//     }
// 
//     default void lastKeyTo(final LogKey target) {
//         readTo(lastIndex(), target);
//     }
// 
//     default int lastKeyCompareTo(final LogKey logKey) {
//         final int termCompare = Integer.compare(lastTerm(), logKey.term());
//         return termCompare == 0 ? Long.compare(lastIndex(), logKey.index()) : termCompare;
//     }
// 
//     boolean contains(CommandKey commandKey);
//     default LogContainment contains(final LogKey logKey) {
//         return LogContainment.containmentFor(logKey, this);
//     }
// 
// }


// Path: src/main/java/org/tools4j/hoverraft/state/PersistentState.java
import org.tools4j.hoverraft.command.CommandLog;

/**
 * The MIT License (MIT)
 *
 * Copyright (c) 2016-2017 hover-raft (tools4j), Marco Terzer
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package org.tools4j.hoverraft.state;



public interface PersistentState {

    int NOT_VOTED_YET = -1;

    int currentTerm();

    int votedFor();

    int clearVotedForAndSetCurrentTerm(int term);

    int clearVotedForAndIncCurrentTerm();

    void votedFor(final int candidateId);

    CommandLog commandLog();