| /* |
| * Copyright (c) 2003, 2013, Oracle and/or its affiliates. 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. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package java.lang; |
| |
| import java.io.IOException; |
| |
| /** |
| * A {@code Readable} is a source of characters. Characters from |
| * a {@code Readable} are made available to callers of the read |
| * method via a {@link java.nio.CharBuffer CharBuffer}. |
| * |
| * @since 1.5 |
| */ |
| public interface Readable { |
| |
| /** |
| * Attempts to read characters into the specified character buffer. |
| * The buffer is used as a repository of characters as-is: the only |
| * changes made are the results of a put operation. No flipping or |
| * rewinding of the buffer is performed. |
| * |
| * @param cb the buffer to read characters into |
| * @return The number of {@code char} values added to the buffer, |
| * or -1 if this source of characters is at its end |
| * @throws IOException if an I/O error occurs |
| * @throws NullPointerException if cb is null |
| * @throws java.nio.ReadOnlyBufferException if cb is a read only buffer |
| */ |
| public int read(java.nio.CharBuffer cb) throws IOException; |
| } |