cet::sqlite::Transaction Class Reference

#include <Transaction.h>

Public Member Functions
	Transaction (sqlite3 *db) noexcept(false)
	~Transaction () noexcept
void	commit () noexcept(false)
	Transaction (Transaction const &)=delete
	Transaction (Transaction &&)=delete
Transaction &	operator= (Transaction const &)=delete
Transaction &	operator= (Transaction &&)=delete

Private Attributes
sqlite3 *	db_

Detailed Description

Definition at line 24 of file Transaction.h.

Constructor & Destructor Documentation

cet::sqlite::Transaction::Transaction ( sqlite3 *  db )

explicitnoexcept

Definition at line 20 of file Transaction.cc.

                                                             : db_{db}
{
  assert(db_);
  int const rc{sqlite3_exec(db_, "BEGIN;", nullptr, nullptr, nullptr)};
  if (rc != SQLITE_OK) {
    throw Exception{errors::SQLExecutionError}
      << "Failed to start SQLite transaction due to status code " << rc << ":\n"
      << sqlite3_errmsg(db_) << '\n';
  }
}

cet::sqlite::Transaction::~Transaction ( )

noexcept

Definition at line 31 of file Transaction.cc.

{
  // We can't throw an exception from our destructor, so we just emit
  // an error message.
  if (db_) {
    sqlite3_exec(db_, "ROLLBACK;", nullptr, nullptr, nullptr);
    std::cerr << "Transaction d'tor called before commit was called.\n";
  }
}

cet::sqlite::Transaction::Transaction ( Transaction const &  )

delete

cet::sqlite::Transaction::Transaction ( Transaction &&  )

delete

Member Function Documentation

void cet::sqlite::Transaction::commit ( )

noexcept

Definition at line 42 of file Transaction.cc.

{
  assert(db_);
  set_to_null_when_done sentry{db_};
  int const rc{sqlite3_exec(db_, "COMMIT;", nullptr, nullptr, nullptr)};
  if (rc != SQLITE_OK) {
    throw Exception{errors::SQLExecutionError}
      << "Failed to commit SQLite transaction due to status code " << rc
      << ":\n"
      << sqlite3_errmsg(db_) << '\n';
  }
}

Transaction& cet::sqlite::Transaction::operator= ( Transaction const &  )

delete

Transaction& cet::sqlite::Transaction::operator= ( Transaction &&  )

delete

Member Data Documentation

sqlite3* cet::sqlite::Transaction::db_

private

Definition at line 38 of file Transaction.h.

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The documentation for this class was generated from the following files:

• cetlib/cetlib/sqlite/Transaction.h
• cetlib/cetlib/sqlite/Transaction.cc