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1   /*
2    * Copyright 2016 The Netty Project
3    *
4    * The Netty Project licenses this file to you under the Apache License, version 2.0 (the
5    * "License"); you may not use this file except in compliance with the License. You may obtain a
6    * 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 distributed under the License
11   * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
12   * or implied. See the License for the specific language governing permissions and limitations under
13   * the License.
14   */
15  
16  package io.netty.handler.codec.redis;
17  
18  import io.netty.buffer.ByteBuf;
19  import io.netty.util.internal.UnstableApi;
20  
21  /**
22   * A strategy interface for caching {@link RedisMessage}s.
23   */
24  @UnstableApi
25  
26  public interface RedisMessagePool {
27  
28      /**
29       * Returns {@link SimpleStringRedisMessage} for given {@code content}. Returns {@code null} it does not exist.
30       */
31      SimpleStringRedisMessage getSimpleString(String content);
32  
33      /**
34       * Returns {@link SimpleStringRedisMessage} for given {@code content}. Returns {@code null} it does not exist.
35       */
36      SimpleStringRedisMessage getSimpleString(ByteBuf content);
37  
38      /**
39       * Returns {@link ErrorRedisMessage} for given {@code content}. Returns {@code null} it does not exist.
40       */
41      ErrorRedisMessage getError(String content);
42  
43      /**
44       * Returns {@link ErrorRedisMessage} for given {@code content}. Returns {@code null} it does not exist.
45       */
46      ErrorRedisMessage getError(ByteBuf content);
47  
48      /**
49       * Returns {@link IntegerRedisMessage} for given {@code value}. Returns {@code null} it does not exist.
50       */
51      IntegerRedisMessage getInteger(long value);
52  
53      /**
54       * Returns {@link IntegerRedisMessage} for given {@code content}. Returns {@code null} it does not exist.
55       */
56      IntegerRedisMessage getInteger(ByteBuf content);
57  
58      /**
59       * Returns {@code byte[]} for given {@code msg}. Returns {@code null} it does not exist.
60       */
61      byte[] getByteBufOfInteger(long value);
62  }