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JSimpleDB distributed, linearizable ACID compliant key/value store implementation based on the Raft consensus algorithm.

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/*
 * Copyright (C) 2015 Archie L. Cobbs. All rights reserved.
 */

package org.jsimpledb.kv.raft.fallback;

import java.util.Date;

import org.jsimpledb.kv.KVTransaction;

/**
 * {@link MergeStrategy} that does nothing, i.e., it leaves the destination database unmodified.
 */
public class NullMergeStrategy implements MergeStrategy {

    @Override
    public void mergeAndCommit(KVTransaction src, KVTransaction dst, Date lastActiveTime) {
        src.commit();
        dst.commit();
    }

    @Override
    public String toString() {
        return "Null";
    }
}