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1   /*
2    * Copyright 2013 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License,
5    * version 2.0 (the "License"); you may not use this file except in compliance
6    * with the License. You may obtain a copy of the License at:
7    *
8    *   http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13   * License for the specific language governing permissions and limitations
14   * under the License.
15   */
16  
17  package io.netty.buffer;
18  
19  import java.nio.ByteBuffer;
20  
21  /**
22   * Abstract base class for {@link ByteBuf} implementations that wrap another
23   * {@link ByteBuf}.
24   *
25   * @deprecated Do not use.
26   */
27  @Deprecated
28  public abstract class AbstractDerivedByteBuf extends AbstractByteBuf {
29  
30      protected AbstractDerivedByteBuf(int maxCapacity) {
31          super(maxCapacity);
32      }
33  
34      @Override
35      public final int refCnt() {
36          return unwrap().refCnt();
37      }
38  
39      @Override
40      public final ByteBuf retain() {
41          unwrap().retain();
42          return this;
43      }
44  
45      @Override
46      public final ByteBuf retain(int increment) {
47          unwrap().retain(increment);
48          return this;
49      }
50  
51      @Override
52      public final boolean release() {
53          return unwrap().release();
54      }
55  
56      @Override
57      public final boolean release(int decrement) {
58          return unwrap().release(decrement);
59      }
60  
61      @Override
62      public ByteBuffer internalNioBuffer(int index, int length) {
63          return nioBuffer(index, length);
64      }
65  
66      @Override
67      public ByteBuffer nioBuffer(int index, int length) {
68          return unwrap().nioBuffer(index, length);
69      }
70  }