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Java > Open Source Codes > org > hsqldb > lib > Storage


1 /* Copyright (c) 2001-2005, The HSQL Development Group
2  * All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions are met:
6  *
7  * Redistributions of source code must retain the above copyright notice, this
8  * list of conditions and the following disclaimer.
9  *
10  * Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  *
14  * Neither the name of the HSQL Development Group nor the names of its
15  * contributors may be used to endorse or promote products derived from this
16  * software without specific prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED. IN NO EVENT SHALL HSQL DEVELOPMENT GROUP, HSQLDB.ORG,
22  * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
23  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
24  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
26  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29  */
30
31
32 package org.hsqldb.lib;
33
34 import java.io.IOException JavaDoc;
35
36 /**
37  * An interface that supports the commonly used methods of java.io.RandomAccessFile.
38  *
39  * @author Ocke Janssen oj@openoffice.org
40  * @version 1.8.0
41  * @since 1.80
42  */
43 public interface Storage {
44
45     long length() throws IOException JavaDoc;
46
47     void seek(long position) throws IOException JavaDoc;
48
49     long getFilePointer() throws IOException JavaDoc;
50
51     int read() throws IOException JavaDoc;
52
53     void read(byte[] b, int offset, int length) throws IOException JavaDoc;
54
55     void write(byte[] b, int offset, int length) throws IOException JavaDoc;
56
57     int readInt() throws IOException JavaDoc;
58
59     void writeInt(int i) throws IOException JavaDoc;
60
61     long readLong() throws IOException JavaDoc;
62
63     void writeLong(long i) throws IOException JavaDoc;
64
65     void close() throws IOException JavaDoc;
66
67     boolean isReadOnly();
68
69     boolean wasNio();
70 }
71
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