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Java > Open Source Codes > org > apache > derby > iapi > store > raw > PageTimeStamp


1 /*
2
3    Derby - Class org.apache.derby.iapi.store.raw.PageTimeStamp
4
5    Licensed to the Apache Software Foundation (ASF) under one or more
6    contributor license agreements. See the NOTICE file distributed with
7    this work for additional information regarding copyright ownership.
8    The ASF licenses this file to you under the Apache License, Version 2.0
9    (the "License"); you may not use this file except in compliance with
10    the License. You may obtain a copy of the License at
11
12       http://www.apache.org/licenses/LICENSE-2.0
13
14    Unless required by applicable law or agreed to in writing, software
15    distributed under the License is distributed on an "AS IS" BASIS,
16    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17    See the License for the specific language governing permissions and
18    limitations under the License.
19
20  */
21
22 package org.apache.derby.iapi.store.raw;
23
24 /**
25     The type definition of a time stamp that can be associated with pages that
26     supports 'time stamp'.
27
28     What a time stamp contains is up to the page. It is expected that a time
29     stamp implementation will collaborate with the page to implement a value
30     equality.
31     @see Page#equalTimeStamp
32 */
33
34 public interface PageTimeStamp
35 {
36     /** No method definition. This is a type definition */
37 }
38
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