libpqxx
pqxx::internal::basic_transaction Class Reference

Helper base class for the transaction class template. More...

#include <transaction.hxx>

Inheritance diagram for pqxx::internal::basic_transaction:

Protected Member Functions

 basic_transaction (connection_base &C, const std::string &IsolationLevel, readwrite_policy)
 
- Protected Member Functions inherited from pqxx::dbtransaction
 dbtransaction (connection_base &, const std::string &IsolationString, readwrite_policy rw=read_write)
 
 dbtransaction (connection_base &, bool direct=true, readwrite_policy rw=read_write)
 
void start_backend_transaction ()
 Start a transaction on the backend and set desired isolation level. More...
 
virtual void do_begin () override
 Sensible default implemented here: begin backend transaction. More...
 
virtual result do_exec (const char Query[]) override
 Sensible default implemented here: perform query. More...
 
virtual void do_abort () override
 Sensible default implemented here: abort backend transaction. More...
 
- Protected Member Functions inherited from pqxx::transaction_base
 transaction_base (connection_base &c, bool direct=true)
 Create a transaction (to be called by implementation classes only) More...
 
void Begin ()
 Begin transaction (to be called by implementing class) More...
 
void End () noexcept
 End transaction. To be called by implementing class' destructor. More...
 
result direct_exec (const char C[], int Retries=0)
 Execute query on connection directly. More...
 
void reactivation_avoidance_clear () noexcept
 Forget about any reactivation-blocking resources we tried to allocate. More...
 

Additional Inherited Members

- Public Types inherited from pqxx::transaction_base
using isolation_tag = isolation_traits< read_committed >
 If nothing else is known, our isolation level is at least read_committed. More...
 
- Public Member Functions inherited from pqxx::dbtransaction
virtual ~dbtransaction ()
 
- Public Member Functions inherited from pqxx::transaction_base
 transaction_base ()=delete
 
 transaction_base (const transaction_base &)=delete
 
transaction_baseoperator= (const transaction_base &)=delete
 
virtual ~transaction_base ()=0
 
void commit ()
 Commit the transaction. More...
 
void abort ()
 Abort the transaction. More...
 
result exec (const std::string &Query, const std::string &Desc=std::string())
 Execute query. More...
 
result exec (const std::stringstream &Query, const std::string &Desc=std::string())
 
result exec0 (const std::string &Query, const std::string &Desc=std::string())
 Execute query, which should zero rows of data. More...
 
row exec1 (const std::string &Query, const std::string &Desc=std::string())
 Execute query returning a single row of data. More...
 
result exec_n (size_t rows, const std::string &Query, const std::string &Desc=std::string())
 Execute query, expect given number of rows. More...
 
connection_baseconn () const
 Connection this transaction is running in. More...
 
void set_variable (const std::string &Var, const std::string &Val)
 Set session variable in this connection. More...
 
std::string get_variable (const std::string &)
 Get currently applicable value of variable. More...
 
std::string esc (const char str[]) const
 Escape string for use as SQL string literal in this transaction. More...
 
std::string esc (const char str[], size_t maxlen) const
 Escape string for use as SQL string literal in this transaction. More...
 
std::string esc (const std::string &str) const
 Escape string for use as SQL string literal in this transaction. More...
 
std::string esc_raw (const unsigned char data[], size_t len) const
 Escape binary data for use as SQL string literal in this transaction. More...
 
std::string esc_raw (const std::string &) const
 Escape binary data for use as SQL string literal in this transaction. More...
 
std::string unesc_raw (const std::string &text) const
 Unescape binary data, e.g. from a table field or notification payload. More...
 
std::string unesc_raw (const char *text) const
 Unescape binary data, e.g. from a table field or notification payload. More...
 
template<typename T >
std::string quote (const T &t) const
 Represent object as SQL string, including quoting & escaping. More...
 
std::string quote_raw (const unsigned char str[], size_t len) const
 Binary-escape and quote a binarystring for use as an SQL constant. More...
 
std::string quote_raw (const std::string &str) const
 
std::string quote_name (const std::string &identifier) const
 Escape an SQL identifier for use in a query. More...
 
template<typename ... Args>
result exec_params (const std::string &query, Args &&...args)
 Execute an SQL statement with parameters. More...
 
template<typename ... Args>
row exec_params1 (const std::string &query, Args &&... args)
 
template<typename ... Args>
result exec_params0 (const std::string &query, Args &&...args)
 
template<typename ... Args>
result exec_params_n (size_t rows, const std::string &query, Args &&...args)
 
internal::parameterized_invocation parameterized (const std::string &query)
 Parameterize a statement. More...
 
template<typename ... Args>
result exec_prepared (const std::string &statement, Args &&... args)
 Execute a prepared statement, with optional arguments. More...
 
template<typename ... Args>
row exec_prepared1 (const std::string &statement, Args &&... args)
 Execute a prepared statement, and expect a single-row result. More...
 
template<typename ... Args>
result exec_prepared0 (const std::string &statement, Args &&... args)
 Execute a prepared statement, and expect a result with zero rows. More...
 
template<typename ... Args>
result exec_prepared_n (size_t rows, const std::string &statement, Args &&... args)
 Execute a prepared statement, expect a result with given number of rows. More...
 
prepare::invocation prepared (const std::string &statement=std::string())
 Execute prepared statement. More...
 
void process_notice (const char Msg[]) const
 Have connection process warning message. More...
 
void process_notice (const std::string &Msg) const
 Have connection process warning message. More...
 
- Public Member Functions inherited from pqxx::internal::namedclass
 namedclass (const std::string &Classname)
 
 namedclass (const std::string &Classname, const std::string &Name)
 
const std::string & name () const noexcept
 Object name, or the empty string if no name was given. More...
 
const std::string & classname () const noexcept
 Class name. More...
 
std::string description () const
 Combination of class name and object name; or just class name. More...
 
- Static Protected Member Functions inherited from pqxx::dbtransaction
static std::string fullname (const std::string &ttype, const std::string &isolation)
 
- Protected Attributes inherited from pqxx::transaction_base
internal::reactivation_avoidance_counter m_reactivation_avoidance
 Resources allocated in this transaction that make reactivation impossible. More...
 

Detailed Description

Helper base class for the transaction class template.

Constructor & Destructor Documentation

◆ basic_transaction()

pqxx::internal::basic_transaction::basic_transaction ( connection_base C,
const std::string &  IsolationLevel,
readwrite_policy  rw 
)
protected

Implementation of the pqxx::transaction class.

pqxx::transaction represents a regular database transaction.

Copyright (c) 2001-2017, Jeroen T. Vermeulen.

See COPYING for copyright license. If you did not receive a file called COPYING with this source code, please notify the distributor of this mistake, or contact the author.

References pqxx::transaction_base::conn(), pqxx::transaction_base::direct_exec(), pqxx::internal::namedclass::name(), pqxx::transaction_base::process_notice(), and pqxx::internal::sql_commit_work.


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