| /* |
| * 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. |
| */ |
| |
| package java.nio; |
| |
| /** |
| * CharArrayBuffer, ReadWriteCharArrayBuffer and ReadOnlyCharArrayBuffer compose |
| * the implementation of array based char buffers. |
| * <p> |
| * ReadOnlyCharArrayBuffer extends CharArrayBuffer with all the write methods |
| * throwing read only exception. |
| * </p> |
| * <p> |
| * This class is marked final for runtime performance. |
| * </p> |
| * |
| */ |
| final class ReadOnlyCharArrayBuffer extends CharArrayBuffer { |
| |
| static ReadOnlyCharArrayBuffer copy(CharArrayBuffer other, int markOfOther) { |
| ReadOnlyCharArrayBuffer buf = new ReadOnlyCharArrayBuffer(other |
| .capacity(), other.backingArray, other.offset); |
| buf.limit = other.limit(); |
| buf.position = other.position(); |
| buf.mark = markOfOther; |
| return buf; |
| } |
| |
| ReadOnlyCharArrayBuffer(int capacity, char[] backingArray, int arrayOffset) { |
| super(capacity, backingArray, arrayOffset); |
| } |
| |
| @Override |
| public CharBuffer asReadOnlyBuffer() { |
| return duplicate(); |
| } |
| |
| @Override |
| public CharBuffer compact() { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public CharBuffer duplicate() { |
| return copy(this, mark); |
| } |
| |
| @Override |
| public boolean isReadOnly() { |
| return true; |
| } |
| |
| @Override |
| protected char[] protectedArray() { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| protected int protectedArrayOffset() { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| protected boolean protectedHasArray() { |
| return false; |
| } |
| |
| @Override |
| public CharBuffer put(char c) { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public CharBuffer put(int index, char c) { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public final CharBuffer put(char[] src, int off, int len) { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public final CharBuffer put(CharBuffer src) { |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public CharBuffer put(String src, int start, int end) { |
| if ((start < 0) || (end < 0) |
| || (long) start + (long) end > src.length()) { |
| throw new IndexOutOfBoundsException(); |
| } |
| throw new ReadOnlyBufferException(); |
| } |
| |
| @Override |
| public CharBuffer slice() { |
| return new ReadOnlyCharArrayBuffer(remaining(), backingArray, offset |
| + position); |
| } |
| } |