1 // Copyright 2010-2018, Google Inc. 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions are 6 // met: 7 // 8 // * Redistributions of source code must retain the above copyright 9 // notice, this list of conditions and the following disclaimer. 10 // * Redistributions in binary form must reproduce the above 11 // copyright notice, this list of conditions and the following disclaimer 12 // in the documentation and/or other materials provided with the 13 // distribution. 14 // * Neither the name of Google Inc. nor the names of its 15 // contributors may be used to endorse or promote products derived from 16 // this software without specific prior written permission. 17 // 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 30 // UserDataManagerInterface is responsible for the management of the 31 // user data in the persistent storage, i.e. syncing, reloading, or 32 // clear-out. 33 34 #ifndef MOZC_ENGINE_USER_DATA_MANAGER_INTERFACE_H_ 35 #define MOZC_ENGINE_USER_DATA_MANAGER_INTERFACE_H_ 36 37 #include <string> 38 39 #include "base/port_string.h" 40 41 namespace mozc { 42 43 class UserDataManagerInterface { 44 public: 45 virtual ~UserDataManagerInterface() = default; 46 47 // Syncs mutable user data to local file system. 48 virtual bool Sync() = 0; 49 50 // Reloads mutable user data from local file system. 51 virtual bool Reload() = 0; 52 53 // Clears user history data. 54 virtual bool ClearUserHistory() = 0; 55 56 // Clears user prediction data. 57 virtual bool ClearUserPrediction() = 0; 58 59 // Clears unused user prediction data. 60 virtual bool ClearUnusedUserPrediction() = 0; 61 62 // Clears a specific user prediction history. 63 virtual bool ClearUserPredictionEntry( 64 const string &key, const string &value) = 0; 65 66 // Waits for syncer thread to complete. 67 virtual bool Wait() = 0; 68 }; 69 70 } // namespace mozc 71 72 #endif // MOZC_ENGINE_USER_DATA_MANAGER_INTERFACE_H_ 73