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Diffstat (limited to 'connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java')
| -rw-r--r-- | connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java new file mode 100644 index 000000000000..8cc6cb07d353 --- /dev/null +++ b/connectivity/com/sun/star/sdbcx/comp/hsqldb/StorageNativeOutputStream.java @@ -0,0 +1,145 @@ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * 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 . + */ +package com.sun.star.sdbcx.comp.hsqldb; + +public class StorageNativeOutputStream { + static { NativeLibraries.load(); } + + /** Creates a new instance of StorageNativeOutputStream */ + public StorageNativeOutputStream(String _name, Object key) { + openStream(_name, (String)key, NativeStorageAccess.WRITE | NativeStorageAccess.TRUNCATE); + } + + private 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 java.io.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; + +} |