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Java > Open Source Codes > org > apache > poi > poifs > storage > ListManagedBlock


1
2 /* ====================================================================
3    Copyright 2002-2004 Apache Software Foundation
4
5    Licensed under the Apache License, Version 2.0 (the "License");
6    you may not use this file except in compliance with the License.
7    You may obtain a copy of the License at
8
9        http://www.apache.org/licenses/LICENSE-2.0
10
11    Unless required by applicable law or agreed to in writing, software
12    distributed under the License is distributed on an "AS IS" BASIS,
13    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14    See the License for the specific language governing permissions and
15    limitations under the License.
16 ==================================================================== */
17         
18
19 package org.apache.poi.poifs.storage;
20
21 import java.io.IOException JavaDoc;
22
23 /**
24  * An interface for blocks managed by a list that works with a
25  * BlockAllocationTable to keep block sequences straight
26  *
27  * @author Marc Johnson (mjohnson at apache dot org
28  */
29
30 public interface ListManagedBlock
31 {
32
33     /**
34      * Get the data from the block
35      *
36      * @return the block's data as a byte array
37      *
38      * @exception IOException if there is no data
39      */
40
41     public byte [] getData()
42         throws IOException JavaDoc;
43 } // end public interface ListManagedBlock
44
45
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