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Non-domain infrastructure code that is common to many Neo4j components.

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/*
 * Copyright (c) "Neo4j"
 * Neo4j Sweden AB [https://neo4j.com]
 *
 * This file is part of Neo4j.
 *
 * Neo4j is free software: you can redistribute it and/or modify
 * it under the terms of the GNU 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see .
 */
package org.neo4j.util;

import org.apache.commons.lang3.mutable.MutableInt;

/**
 * Used as a local counter, which manages its own counter as well as delegating changes to a global counter.
 */
public class LocalIntCounter extends MutableInt {
    private final MutableInt global;

    public LocalIntCounter(MutableInt globalCounter) {
        this.global = globalCounter;
    }

    @Override
    public void increment() {
        super.increment();
        global.increment();
    }

    @Override
    public void decrement() {
        super.decrement();
        global.decrement();
    }

    @Override
    public void add(int delta) {
        super.add(delta);
        global.add(delta);
    }

    @Override
    public String toString() {
        return "local:" + super.toString() + ",global:" + global;
    }
}