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VoltDB server libraries

There is a newer version: 10.1.1

/* This file is part of VoltDB.
 * Copyright (C) 2008-2018 VoltDB Inc.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with VoltDB.  If not, see .
 */
package org.voltdb;

import java.util.concurrent.atomic.AtomicReference;

import org.voltdb.common.NodeState;

import com.google_voltpatches.common.base.Supplier;

/**
 * Class that aides in the tracking of a VoltDB node state.
 */
public class NodeStateTracker extends AtomicReference {
    public NodeStateTracker() {
        super(NodeState.INITIALIZING);
    }

    public Supplier getSupplier() {
        return this::get;
    }
}