connectivity/com/sun/star/sdbcx/comp/hsqldb/NativeStorageAccess.java

   1 /*
   2  * This file is part of the LibreOffice project.
   3  *
   4  * This Source Code Form is subject to the terms of the Mozilla Public
   5  * License, v. 2.0. If a copy of the MPL was not distributed with this
   6  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   7  *
   8  * This file incorporates work covered by the following license notice:
   9  *
  10  *   Licensed to the Apache Software Foundation (ASF) under one or more
  11  *   contributor license agreements. See the NOTICE file distributed
  12  *   with this work for additional information regarding copyright
  13  *   ownership. The ASF licenses this file to you under the Apache
  14  *   License, Version 2.0 (the "License"); you may not use this file
  15  *   except in compliance with the License. You may obtain a copy of
  16  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  17  */
  18 package com.sun.star.sdbcx.comp.hsqldb;
  19
  20 public class NativeStorageAccess {
  21     static { NativeLibraries.load(); }
  22
  23     public static final int READ            = 1;
  24     private static final int SEEKABLE        = 2;
  25     private static final int SEEKABLEREAD    = 3;
  26     public static final int WRITE           = 4;
  27     private static final int READWRITE       = 7;
  28     public static final int TRUNCATE        = 8;
  29
  30     /** Creates a new instance of StorageAccess */
  31     public NativeStorageAccess(String name,String _mode,Object key) throws java.io.IOException{
  32         try {
  33             int mode = NativeStorageAccess.SEEKABLEREAD;
  34             if ( _mode.equals("rw") )
  35                 mode = NativeStorageAccess.READWRITE | NativeStorageAccess.SEEKABLE;
  36
  37             openStream(name, (String)key, mode);
  38         } catch(Exception ex1){
  39             java.io.IOException ex2 = new java.io.IOException();
  40             ex2.initCause(ex1);
  41             throw ex2;
  42         }
  43     }
  44     private native void openStream(String name,String key, int mode);
  45     public native void close(String name,String key) throws java.io.IOException;
  46
  47     public native long getFilePointer(String name,String key) throws java.io.IOException;
  48
  49     public native long length(String name,String key) throws java.io.IOException;
  50
  51     public native int read(String name,String key) throws java.io.IOException;
  52
  53     public native int read(String name,String key,byte[] b, int off, int len) throws java.io.IOException;
  54
  55
  56
  57     public native void seek(String name,String key,long position) throws java.io.IOException;
  58
  59     public native void write(String name,String key,byte[] b, int offset, int length) throws java.io.IOException;
  60
  61
  62 }