Michael E. Rodriguez | d8af66f | 2005-12-08 20:55:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 1999,2005 The Apache Software Foundation. |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * 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, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package javax.servlet; |
| 18 | |
| 19 | /** |
| 20 | * Ensures that servlets handle |
| 21 | * only one request at a time. This interface has no methods. |
| 22 | * |
| 23 | * <p>If a servlet implements this interface, you are <i>guaranteed</i> |
| 24 | * that no two threads will execute concurrently in the |
| 25 | * servlet's <code>service</code> method. The servlet container |
| 26 | * can make this guarantee by synchronizing access to a single |
| 27 | * instance of the servlet, or by maintaining a pool of servlet |
| 28 | * instances and dispatching each new request to a free servlet. |
| 29 | * |
| 30 | * <p>This interface does not prevent |
| 31 | * synchronization problems that result from servlets accessing shared |
| 32 | * resources such as static class variables or classes outside |
| 33 | * the scope of the servlet. |
| 34 | * |
| 35 | * |
| 36 | * @author Various |
| 37 | * @version $Version$ |
| 38 | * |
| 39 | */ |
| 40 | |
| 41 | public interface SingleThreadModel { |
| 42 | } |