--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/io/OutputStream.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,154 @@
+/*
+ * Copyright 1994-2004 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.io;
+
+/**
+ * This abstract class is the superclass of all classes representing
+ * an output stream of bytes. An output stream accepts output bytes
+ * and sends them to some sink.
+ * <p>
+ * Applications that need to define a subclass of
+ * <code>OutputStream</code> must always provide at least a method
+ * that writes one byte of output.
+ *
+ * @author Arthur van Hoff
+ * @see java.io.BufferedOutputStream
+ * @see java.io.ByteArrayOutputStream
+ * @see java.io.DataOutputStream
+ * @see java.io.FilterOutputStream
+ * @see java.io.InputStream
+ * @see java.io.OutputStream#write(int)
+ * @since JDK1.0
+ */
+public abstract class OutputStream implements Closeable, Flushable {
+ /**
+ * 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 b the <code>byte</code>.
+ * @exception IOException if an I/O error occurs. In particular,
+ * an <code>IOException</code> may be thrown if the
+ * output stream has been closed.
+ */
+ public abstract void write(int b) throws 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 IOException if an I/O error occurs.
+ * @see java.io.OutputStream#write(byte[], int, int)
+ */
+ public void write(byte b[]) throws IOException {
+ write(b, 0, b.length);
+ }
+
+ /**
+ * 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 b the data.
+ * @param off the start offset in the data.
+ * @param len the number of bytes to write.
+ * @exception IOException if an I/O error occurs. In particular,
+ * an <code>IOException</code> is thrown if the output
+ * stream is closed.
+ */
+ public void write(byte b[], int off, int len) throws IOException {
+ if (b == null) {
+ throw new NullPointerException();
+ } else if ((off < 0) || (off > b.length) || (len < 0) ||
+ ((off + len) > b.length) || ((off + len) < 0)) {
+ throw new IndexOutOfBoundsException();
+ } else if (len == 0) {
+ return;
+ }
+ for (int i = 0 ; i < len ; i++) {
+ write(b[off + i]);
+ }
+ }
+
+ /**
+ * 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>
+ * If the intended destination of this stream is an abstraction provided by
+ * the underlying operating system, for example a file, then flushing the
+ * stream guarantees only that bytes previously written to the stream are
+ * passed to the operating system for writing; it does not guarantee that
+ * they are actually written to a physical device such as a disk drive.
+ * <p>
+ * The <code>flush</code> method of <code>OutputStream</code> does nothing.
+ *
+ * @exception IOException if an I/O error occurs.
+ */
+ public void flush() throws 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.
+ *
+ * @exception IOException if an I/O error occurs.
+ */
+ public void close() throws IOException {
+ }
+
+}