| /************************************************************** |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| /* |
| * StorageNativeOutputStream.java |
| * |
| * Created on 1. September 2004, 10:20 |
| */ |
| |
| package com.sun.star.sdbcx.comp.hsqldb; |
| |
| /** |
| * |
| * @author oj93728 |
| */ |
| public class StorageNativeOutputStream { |
| static { NativeLibraries.load(); } |
| |
| String name; |
| Object key; |
| |
| /** Creates a new instance of StorageNativeOutputStream */ |
| public StorageNativeOutputStream(String _name,Object _key) { |
| name = _name; |
| key = _key; |
| openStream(name, (String)key, NativeStorageAccess.WRITE | NativeStorageAccess.TRUNCATE); |
| } |
| |
| public native void openStream(String name,String key, int mode); |
| /** |
| * Writes <code>len</code> bytes from the specified byte array |
| * starting at offset <code>off</code> to this output stream. |
| * The general contract for <code>write(b, off, len)</code> is that |
| * some of the bytes in the array <code>b</code> are written to the |
| * output stream in order; element <code>b[off]</code> is the first |
| * byte written and <code>b[off+len-1]</code> is the last byte written |
| * by this operation. |
| * <p> |
| * The <code>write</code> method of <code>OutputStream</code> calls |
| * the write method of one argument on each of the bytes to be |
| * written out. Subclasses are encouraged to override this method and |
| * provide a more efficient implementation. |
| * <p> |
| * If <code>b</code> is <code>null</code>, a |
| * <code>NullPointerException</code> is thrown. |
| * <p> |
| * If <code>off</code> is negative, or <code>len</code> is negative, or |
| * <code>off+len</code> is greater than the length of the array |
| * <code>b</code>, then an <tt>IndexOutOfBoundsException</tt> is thrown. |
| * @param key The name of the data source. |
| * @param _file The name of the file to write to. |
| * @param b the data. |
| * @param off the start offset in the data. |
| * @param len the number of bytes to write. |
| * @exception java.io.IOException if an I/O error occurs. In particular, |
| * an <code>IOException</code> is thrown if the output |
| * stream is closed. |
| */ |
| public native void write(String key,String _file,byte[] b, int off, int len) throws java.io.IOException; |
| |
| /** |
| * Writes <code>b.length</code> bytes from the specified byte array |
| * to this output stream. The general contract for <code>write(b)</code> |
| * is that it should have exactly the same effect as the call |
| * <code>write(b, 0, b.length)</code>. |
| * |
| * @param b the data. |
| * @exception java.io.IOException if an I/O error occurs. |
| * @see java.io.OutputStream#write(byte[], int, int) |
| */ |
| public native void write(String key,String _file,byte[] b) throws java.io.IOException; |
| |
| /** |
| * Closes this output stream and releases any system resources |
| * associated with this stream. The general contract of <code>close</code> |
| * is that it closes the output stream. A closed stream cannot perform |
| * output operations and cannot be reopened. |
| * <p> |
| * The <code>close</code> method of <code>OutputStream</code> does nothing. |
| * @param key The name of the data source. |
| * @param _file The name of the file to write to. |
| * |
| * @exception java.io.IOException if an I/O error occurs. |
| */ |
| public native void close(String key,String _file) throws java.io.IOException; |
| |
| /** |
| * Writes the specified byte to this output stream. The general |
| * contract for <code>write</code> is that one byte is written |
| * to the output stream. The byte to be written is the eight |
| * low-order bits of the argument <code>b</code>. The 24 |
| * high-order bits of <code>b</code> are ignored. |
| * <p> |
| * Subclasses of <code>OutputStream</code> must provide an |
| * implementation for this method. |
| * |
| * @param key The name of the data source. |
| * @param _file The name of the file to write to. |
| * @param b the <code>byte</code>. |
| * @exception java.io.IOException if an I/O error occurs. In particular, |
| * an <code>IOException</code> may be thrown if the |
| * output stream has been closed. |
| */ |
| public native void write(String key,String _file,int b) throws java.io.IOException; |
| |
| /** |
| * Flushes this output stream and forces any buffered output bytes |
| * to be written out. The general contract of <code>flush</code> is |
| * that calling it is an indication that, if any bytes previously |
| * written have been buffered by the implementation of the output |
| * stream, such bytes should immediately be written to their |
| * intended destination. |
| * <p> |
| * The <code>flush</code> method of <code>OutputStream</code> does nothing. |
| * @param key The name of the data source. |
| * @param _file The name of the file to write to. |
| * |
| * @exception java.io.IOException if an I/O error occurs. |
| */ |
| public native void flush(String key,String _file) throws java.io.IOException; |
| |
| /** |
| * Force all system buffers to synchronize with the underlying |
| * device. This method returns after all modified data and |
| * attributes have been written to the relevant device(s). |
| * |
| * sync is meant to be used by code that requires physical |
| * storage (such as a file) to be in a known state For |
| * example, a class that provided a simple transaction facility |
| * might use sync to ensure that all changes to a file caused |
| * by a given transaction were recorded on a storage medium. |
| * |
| * sync only affects buffers downstream. If |
| * any in-memory buffering is being done by the application (for |
| * example, by a BufferedOutputStream object), those buffers must |
| * be flushed (for example, by invoking |
| * OutputStream.flush) before that data will be affected by sync. |
| * |
| * @exception IOException |
| * Thrown when the buffers cannot be flushed, |
| * or because the system cannot guarantee that all the |
| * buffers have been synchronized with physical media. |
| */ |
| public native void sync(String key,String _file) throws java.io.IOException; |
| |
| } |