modules/core/src/main/java/org/apache/ignite/internal/util/GridMutableLong.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.ignite.internal.util;

/**
 * A mutable long for use in collections.
 */
public class GridMutableLong {
    /** Long value. */
    private long v;

    /**
     * Constructor.
     *
     * @param v Long value.
     */
    public GridMutableLong(long v) {
        this.v = v;
    }

    /**
     * Default constructor.
     */
    public GridMutableLong() {
    }

    /**
     * Increments by one the current value.
     *
     * @return Updated value.
     */
    public final long incrementAndGet() {
        return ++v;
    }

    /**
     * Gets the current value.
     *
     * @return Current value.
     */
    public long get() {
        return v;
    }

    /**
     * Sets the new value.
     *
     * @param v New value.
     */
    public void set(long v) {
        this.v = v;
    }

    /** {@inheritDoc} */
    @Override public String toString() {
        return Long.toString(v);
    }
}