15f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// found in the LICENSE file. 45f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 55f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#ifndef CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 65f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#define CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 75f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 85f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "base/memory/ref_counted.h" 95f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#include "base/synchronization/cancellation_flag.h" 105f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 115f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)namespace sql { 125f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)class Connection; 135f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} 145f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 155f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)namespace predictors { 165f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 175f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Base class for all tables in the PredictorDatabase. 185f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// 195f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// Refcounted as it is created and destroyed in the UI thread but all database 205f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)// related functions need to happen in the database thread. 215f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)class PredictorTableBase 225f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) : public base::RefCountedThreadSafe<PredictorTableBase> { 235f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) protected: 245f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) PredictorTableBase(); 255f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) virtual ~PredictorTableBase(); 265f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 275f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) // DB thread functions. 285f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) virtual void CreateTableIfNonExistent() = 0; 295f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) virtual void LogDatabaseStats() = 0; 305f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) void Initialize(sql::Connection* db); 315f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) void SetCancelled(); 325f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) sql::Connection* DB(); 335f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) void ResetDB(); 345f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 355f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) bool CantAccessDatabase(); 365f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 375f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) private: 385f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) base::CancellationFlag cancelled_; 395f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 405f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) friend class base::RefCountedThreadSafe<PredictorTableBase>; 415f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 425f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) sql::Connection* db_; 435f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 445f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(PredictorTableBase); 455f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)}; 465f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 475f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)} // namespace predictors 485f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles) 495f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)#endif // CHROME_BROWSER_PREDICTORS_PREDICTOR_TABLE_BASE_H_ 505f1c94371a64b3196d4be9466099bb892df9b88eTorne (Richard Coles)