| 1 | package org.jtoolkit.essence.concurrency; |
| 2 | |
| 3 | /* |
| 4 | Copyright 2006 Peter Lawrey |
| 5 | |
| 6 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | you may not use this file except in compliance with the License. |
| 8 | You may obtain a copy of the License at |
| 9 | |
| 10 | http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | |
| 12 | Unless required by applicable law or agreed to in writing, software |
| 13 | distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | See the License for the specific language governing permissions and |
| 16 | limitations under the License. |
| 17 | */ |
| 18 | |
| 19 | /** |
| 20 | * Represents the level of concurrency a thread safe component can achieve. |
| 21 | * |
| 22 | * @author Peter Lawrey |
| 23 | */ |
| 24 | public enum Concurrency { |
| 25 | IMMUTABLE(Integer.MAX_VALUE, 0), |
| 26 | SYNCHRONIZED(1,1), |
| 27 | THREAD_LOCAL(1,1), |
| 28 | CONCURRENT_READ(Integer.MAX_VALUE, 1), |
| 29 | CONCURRENT_READ_WRITE(Integer.MAX_VALUE, Integer.MAX_VALUE); |
| 30 | |
| 31 | public final int concurrentReads; |
| 32 | public final int concurrentWrtes; |
| 33 | |
| 34 | Concurrency(int concurrentReads, int concurrentWrtes) { |
| 35 | this.concurrentReads = concurrentReads; |
| 36 | this.concurrentWrtes = concurrentWrtes; |
| 37 | } |
| 38 | } |
| 39 | |