Java AtomicInteger uniqueSequenceId()

Description

Generates a process-wide unique sequence number.

License

Apache License

Return

an unique sequence number

Declaration

public static int uniqueSequenceId() 

Method Source Code

//package com.java2s;
/**//  w ww  . j av  a  2 s.  c o  m
 * 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.
 */

import java.util.concurrent.atomic.AtomicInteger;

public class Main {
    private static AtomicInteger sequence = new AtomicInteger(0);

    /**
     * Generates a process-wide unique sequence number.
     * @return an unique sequence number
     */
    public static int uniqueSequenceId() {
        return sequence.incrementAndGet();
    }
}

Related

1. setBitByValue(final AtomicInteger ai, final int value)
2. setBitIfUnsetByIndex(final AtomicInteger ai, final int n)
3. storeStoreBarrier()
4. timeToId(long timeInMillis)
5. tokenize(String string)
6. waitForAll(List> futures)
7. waitForEvents(long sleepTime, AtomicBoolean condition, long timeout)
8. waitForEvents(long sleepTime, int expectedCount, AtomicInteger actualCount, long timeout)
9. waitForEvents(long sleepTime, int expectedCount, AtomicInteger actualCount, long timeout)