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27 /*
28  * StorageAccess.java
29  *
30  * Created on 17. August 2004, 13:32
31  */
32 
33 package com.sun.star.sdbcx.comp.hsqldb;
34 
35 /**
36  *
37  * @author  oj93728
38  */
39 
40 public class NativeStorageAccess {
41     static { NativeLibraries.load(); }
42 
43     public static final int READ            = 1;
44     public static final int SEEKABLE        = 2;
45     public static final int SEEKABLEREAD    = 3;
46     public static final int WRITE           = 4;
47     public static final int READWRITE       = 7;
48     public static final int TRUNCATE        = 8;
49 
50     /** Creates a new instance of StorageAccess */
51     public NativeStorageAccess(String name,String _mode,Object key) throws java.io.IOException{
52         try {
53             int mode = NativeStorageAccess.SEEKABLEREAD;
54             if ( _mode.equals("rw") )
55                 mode = NativeStorageAccess.READWRITE | NativeStorageAccess.SEEKABLE;
56 
57             openStream(name, (String)key, mode);
58         } catch(Exception e){
59             throw new java.io.IOException();
60         }
61     }
62     public native void openStream(String name,String key, int mode);
63     public native void close(String name,String key) throws java.io.IOException;
64 
65     public native long getFilePointer(String name,String key) throws java.io.IOException;
66 
67     public native long length(String name,String key) throws java.io.IOException;
68 
69     public native int read(String name,String key) throws java.io.IOException;
70 
71     public native int read(String name,String key,byte[] b, int off, int len) throws java.io.IOException;
72 
73     public native int readInt(String name,String key) throws java.io.IOException;
74 
75     public native void seek(String name,String key,long position) throws java.io.IOException;
76 
77     public native void write(String name,String key,byte[] b, int offset, int length) throws java.io.IOException;
78 
79     public native void writeInt(String name,String key,int v) throws java.io.IOException;
80 }
81