SharedAttributeMap


1   /*
2    * Copyright 2002-2006 the original author or authors.
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  package org.springframework.webflow.core.collection;
17  
18  /**
19   * An interface to be implemented by mutable attribute maps accessed by
20   * multiple threads that need to be synchronized.
21   * 
22   * @author Keith Donald
23   */
24  public interface SharedAttributeMap extends MutableAttributeMap {
25  
26      /**
27       * Returns the shared map's mutex, which may be synchronized on to block
28       * access to the map by other threads.
29       */
30      public Object   getMutex();
31  }

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