15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/ref_counted.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/synchronization/cancellation_flag.h" 105821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace sql { 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class Connection; 135821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace predictors { 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Base class for all tables in the PredictorDatabase. 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Refcounted as it is created and destroyed in the UI thread but all database 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// related functions need to happen in the database thread. 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class PredictorTableBase 225821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) : public base::RefCountedThreadSafe<PredictorTableBase> { 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) PredictorTableBase(); 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~PredictorTableBase(); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // DB thread functions. 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void CreateTableIfNonExistent() = 0; 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void LogDatabaseStats() = 0; 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void Initialize(sql::Connection* db); 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void SetCancelled(); 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sql::Connection* DB(); 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void ResetDB(); 345821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 355821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool CantAccessDatabase(); 365821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 375821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::CancellationFlag cancelled_; 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class base::RefCountedThreadSafe<PredictorTableBase>; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) sql::Connection* db_; 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(PredictorTableBase); 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace predictors 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 50