1 /* -*- Mode: C++; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 /*
3  *     Copyright 2017 Couchbase, Inc
4  *
5  *   Licensed under the Apache License, Version 2.0 (the "License");
6  *   you may not use this file except in compliance with the License.
7  *   You may obtain a copy of the License at
8  *
9  *       http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *   Unless required by applicable law or agreed to in writing, software
12  *   distributed under the License is distributed on an "AS IS" BASIS,
13  *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *   See the License for the specific language governing permissions and
15  *   limitations under the License.
16  */
17 
18 #pragma once
19 
20 #include "callbacks.h"
21 
22 class KVBucket;
23 
24 namespace Collections {
25 namespace VB {
26 /**
27  * A KVStore::scan cache callback class which determines if the key is logically
28  * deleted.
29  */
30 class LogicallyDeletedCallback : public StatusCallback<CacheLookup> {
31 public:
LogicallyDeletedCallback(KVBucket& store)32     LogicallyDeletedCallback(KVBucket& store) : store(store) {
33     }
34 
35     void callback(CacheLookup& lookup);
36 
37 private:
38     KVBucket& store;
39 };
40 } // end namespace VB
41 } // end namespace Collections
42