sql/diagnostic_error_delegate.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SQL_DIAGNOSTIC_ERROR_DELEGATE_H_
   6 #define SQL_DIAGNOSTIC_ERROR_DELEGATE_H_
   7
   8 #include "base/logging.h"
   9 #include "sql/connection.h"
  10 #include "sql/error_delegate_util.h"
  11 #include "sql/sql_export.h"
  12
  13 namespace sql {
  14
  15 // This class handles the exceptional sqlite errors that we might encounter
  16 // if for example the db is corrupted. Right now we just generate a UMA
  17 // histogram for release and an assert for debug builds.
  18 // See error_delegate_util.h for an explanation as to why this class is a
  19 // template.
  20 template <class UniqueT>
  21 class DiagnosticErrorDelegate : public ErrorDelegate {
  22  public:
  23   DiagnosticErrorDelegate() {}
  24   virtual ~DiagnosticErrorDelegate() {}
  25
  26   virtual int OnError(int error, Connection* connection,
  27                       Statement* stmt) {
  28     LogAndRecordErrorInHistogram<UniqueT>(error, connection);
  29     return error;
  30   }
  31
  32  private:
  33   DISALLOW_COPY_AND_ASSIGN(DiagnosticErrorDelegate);
  34 };
  35
  36 }  // namespace sql
  37
  38 #endif  // SQL_DIAGNOSTIC_ERROR_DELEGATE_H_