01: /*
02:
03: Derby - Class org.apache.derby.iapi.store.raw.PageTimeStamp
04:
05: Licensed to the Apache Software Foundation (ASF) under one or more
06: contributor license agreements. See the NOTICE file distributed with
07: this work for additional information regarding copyright ownership.
08: The ASF licenses this file to you under the Apache License, Version 2.0
09: (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: /** No method definition. This is a type definition */
36: }
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