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Java > Open Source Codes > org > apache > activemq > util > LongSequenceGenerator


1 /**
2  *
3  * Licensed to the Apache Software Foundation (ASF) under one or more
4  * contributor license agreements. See the NOTICE file distributed with
5  * this work for additional information regarding copyright ownership.
6  * The ASF licenses this file to You under the Apache License, Version 2.0
7  * (the "License"); you may not use this file except in compliance with
8  * the License. You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18 package org.apache.activemq.util;
19
20 public class LongSequenceGenerator {
21
22     private long lastSequenceId;
23
24     synchronized public long getNextSequenceId() {
25         return ++lastSequenceId;
26     }
27
28     synchronized public long getLastSequenceId() {
29         return lastSequenceId;
30     }
31
32     synchronized public void setLastSequenceId(long l) {
33         lastSequenceId = l;
34     }
35
36 }
37
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