Readable.java revision 3261
3261N/A * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. 0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 0N/A * This code is free software; you can redistribute it and/or modify it 0N/A * under the terms of the GNU General Public License version 2 only, as 2362N/A * published by the Free Software Foundation. Oracle designates this 0N/A * particular file as subject to the "Classpath" exception as provided 2362N/A * by Oracle in the LICENSE file that accompanied this code. 0N/A * This code is distributed in the hope that it will be useful, but WITHOUT 0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 0N/A * version 2 for more details (a copy is included in the LICENSE file that 0N/A * accompanied this code). 0N/A * You should have received a copy of the GNU General Public License version 0N/A * 2 along with this work; if not, write to the Free Software Foundation, 0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2362N/A * or visit www.oracle.com if you need additional information or have any 0N/A * A <tt>Readable</tt> is a source of characters. Characters from 0N/A * a <tt>Readable</tt> are made available to callers of the read 0N/A * method via a {@link java.nio.CharBuffer CharBuffer}. 0N/A * Attempts to read characters into the specified character buffer. 0N/A * The buffer is used as a repository of characters as-is: the only 0N/A * changes made are the results of a put operation. No flipping or 0N/A * rewinding of the buffer is performed. 0N/A * @param cb the buffer to read characters into 3101N/A * @return The number of {@code char} values added to the buffer, 0N/A * or -1 if this source of characters is at its end 0N/A * @throws IOException if an I/O error occurs 0N/A * @throws NullPointerException if cb is null 3101N/A * @throws java.nio.ReadOnlyBufferException if cb is a read only buffer