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Evictable.h
1 /*
2  * Copyright (c) 2008-2017, Hazelcast, Inc. All Rights Reserved.
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 #ifndef HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTABLE_H_
17 #define HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTABLE_H_
18 
19 #include <assert.h>
20 #include <boost/shared_ptr.hpp>
21 
22 #if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
23 #pragma warning(push)
24 #pragma warning(disable: 4251) //for dll export
25 #endif
26 
27 namespace hazelcast {
28  namespace client {
29  namespace internal {
30  namespace eviction {
34  template <typename V>
35  class Evictable {
36  public:
37  virtual ~Evictable() { }
38 
44  virtual int64_t getCreationTime() const = 0;
45 
51  virtual int64_t getLastAccessTime() = 0;
52 
58  virtual int32_t getAccessHit() = 0;
59 
65  virtual boost::shared_ptr<V> getValue() const {
66  assert(0);
67  return boost::shared_ptr<V>();
68  }
69  };
70  }
71  }
72  }
73 };
74 
75 #if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
76 #pragma warning(pop)
77 #endif
78 
79 #endif /* HAZELCAST_CLIENT_INTERNAL_EVICTION_EVICTABLE_H_ */
virtual int64_t getCreationTime() const =0
Gets the creation time of this Evictable in milliseconds.
virtual int64_t getLastAccessTime()=0
Gets the latest access time difference of this Evictable in milliseconds.
virtual int32_t getAccessHit()=0
Gets the access hit count of this Evictable.
Interface for entries, records or whatever that can be evicted.
Definition: Evictable.h:35
virtual boost::shared_ptr< V > getValue() const
Gets the value of this Evictable.
Definition: Evictable.h:65