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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  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,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.chemistry.opencmis.client.bindings.cache;
20  
21  import java.io.Serializable;
22  import java.util.Map;
23  
24  /**
25   * Interface for a level of an hierarchical cache.
26   * 
27   * @see Cache
28   */
29  public interface CacheLevel extends Serializable {
30  
31      /**
32       * Initialize the cache level.
33       * 
34       * @param parameters
35       *            level parameters
36       */
37      void initialize(Map<String, String> parameters);
38  
39      /**
40       * Adds an object to the cache level.
41       * 
42       * @param value
43       *            the object
44       * @param key
45       *            the key at this level
46       */
47      void put(Object value, String key);
48  
49      /**
50       * Retrieves an object from the cache level.
51       * 
52       * @param key
53       *            the key at this cache level
54       * @return the object or <code>null</code> if the object doesn't exist
55       */
56      Object get(String key);
57  
58      /**
59       * Removes an object from this cache level.
60       * 
61       * @param key
62       *            the key at this cache level
63       */
64      void remove(String key);
65  }