Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
ConnectionModel |
|
| 0.0;0 |
1 | /* | |
2 | * #%L | |
3 | * ConnectionModel.java - mongodb-async-driver - Allanbank Consulting, Inc. | |
4 | * %% | |
5 | * Copyright (C) 2011 - 2014 Allanbank Consulting, Inc. | |
6 | * %% | |
7 | * Licensed under the Apache License, Version 2.0 (the "License"); | |
8 | * you may not use this file except in compliance with the License. | |
9 | * You may obtain a copy of the License at | |
10 | * | |
11 | * http://www.apache.org/licenses/LICENSE-2.0 | |
12 | * | |
13 | * Unless required by applicable law or agreed to in writing, software | |
14 | * distributed under the License is distributed on an "AS IS" BASIS, | |
15 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
16 | * See the License for the specific language governing permissions and | |
17 | * limitations under the License. | |
18 | * #L% | |
19 | */ | |
20 | package com.allanbank.mongodb; | |
21 | ||
22 | /** | |
23 | * ConnectionModel provides an enumeration of the connection models that the | |
24 | * driver supports. Currently this is related to the number of threads used by | |
25 | * the socket connections to the server. | |
26 | * | |
27 | * @api.yes This interface is part of the driver's API. Public and protected | |
28 | * members will be deprecated for at least 1 non-bugfix release | |
29 | * (version numbers are <major>.<minor>.<bugfix>) | |
30 | * before being removed or modified. | |
31 | * @copyright 2012-2013, Allanbank Consulting, Inc., All Rights Reserved | |
32 | */ | |
33 | 5 | public enum ConnectionModel { |
34 | ||
35 | /** | |
36 | * Each sender thread writes the message to the socket connection directly. | |
37 | * A single receive thread is used per connection to receive the replies. | |
38 | * While a sender writes each message to the socket the driver still has the | |
39 | * ability to batch multiple send requests in a packet but batching is | |
40 | * limited to concurrent senders. A single threaded application will not | |
41 | * batch requests. | |
42 | * <p> | |
43 | * This is the default {@code ConnectionModel}. | |
44 | * </p> | |
45 | * <p> | |
46 | * In a multi-threaded application this {@code ConnectionModel} should | |
47 | * perform as well as if not better than the {@link #SENDER_RECEIVER_THREAD} | |
48 | * model. This is achieved by completely avoiding cross thread passing of | |
49 | * the message on a send. | |
50 | * </p> | |
51 | */ | |
52 | 1 | RECEIVER_THREAD, |
53 | ||
54 | /** | |
55 | * Each socket uses a pair of threads: sender and receiver. | |
56 | * <p> | |
57 | * This was the default {@code ConnectionModel} versions prior to 1.3.0. | |
58 | * </p> | |
59 | * <p> | |
60 | * This {@code ConnectionModel} is most useful for connections where a | |
61 | * single {@code write()} to the socket implementation is slow and the | |
62 | * application only uses a single write thread. | |
63 | * </p> | |
64 | * | |
65 | * @since 1.0.0 | |
66 | */ | |
67 | 1 | SENDER_RECEIVER_THREAD; |
68 | } |