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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 refCnt0();
37      }
38  
39      int refCnt0() {
40          return unwrap().refCnt();
41      }
42  
43      @Override
44      public final ByteBuf retain() {
45          return retain0();
46      }
47  
48      ByteBuf retain0() {
49          unwrap().retain();
50          return this;
51      }
52  
53      @Override
54      public final ByteBuf retain(int increment) {
55          return retain0(increment);
56      }
57  
58      ByteBuf retain0(int increment) {
59          unwrap().retain(increment);
60          return this;
61      }
62  
63      @Override
64      public final ByteBuf touch() {
65          return touch0();
66      }
67  
68      ByteBuf touch0() {
69          unwrap().touch();
70          return this;
71      }
72  
73      @Override
74      public final ByteBuf touch(Object hint) {
75          return touch0(hint);
76      }
77  
78      ByteBuf touch0(Object hint) {
79          unwrap().touch(hint);
80          return this;
81      }
82  
83      @Override
84      public final boolean release() {
85          return release0();
86      }
87  
88      boolean release0() {
89          return unwrap().release();
90      }
91  
92      @Override
93      public final boolean release(int decrement) {
94          return release0(decrement);
95      }
96  
97      boolean release0(int decrement) {
98          return unwrap().release(decrement);
99      }
100 
101     @Override
102     public boolean isReadOnly() {
103         return unwrap().isReadOnly();
104     }
105 
106     @Override
107     public ByteBuffer internalNioBuffer(int index, int length) {
108         return nioBuffer(index, length);
109     }
110 
111     @Override
112     public ByteBuffer nioBuffer(int index, int length) {
113         return unwrap().nioBuffer(index, length);
114     }
115 }