#include <SQLSelect.hh>
Inherits fatalmind::Command< PT >< fatalmind::PoolType >, fatalmind::SQL::Bind< VBC, CT >< fatalmind::mysql::SQLType, fatalmind::mysql::SQLTypeImpl< T > >, fatalmind::SQL::BindOut< VBC, CT >< fatalmind::mysql::SQLRefType, fatalmind::mysql::SQLRefTypeImpl< T > >, and fatalmind::SQLSelect.
Inherited by fatalmind::mysql::EscalateWarnings, and fatalmind::mysql::SQLSelectRow.
Public Types | |
| typedef PT | pool_type |
| typedef VBC | _datat |
| typedef gc_ptr< VBC > | _ptrt |
|
typedef std::vector < _ptrt > | _argst |
Public Member Functions | |
| SQLSelect (const SQL::SQLStatement &SQL, SQL::SQLFetcher &fetcher) | |
| SQLSelect (const ResourcePool< ResourceType > &p, const SQL::SQLStatement &SQL, SQL::SQLFetcher &fetcher) | |
| virtual void | execute (mysqlResource &) |
| virtual void | outputoperator (std::ostream &) const |
| virtual void | execute (typename PT::resource_t &rr)=0 |
| The execute method is the one which actually carries out the work. | |
| virtual void | bind (const unsigned int pos, const char &val, bool isnull=false) |
| Binds an actual input value for an placeholder in the SQL statement. | |
| virtual void | bind (const unsigned int pos, const signed char &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const unsigned char &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const short int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const unsigned short int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const unsigned int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const long int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const unsigned long int &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const float &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const double &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const long double &val, bool isnull=false) |
| virtual void | bind (const unsigned int pos, const std::string &val, bool isnull=false) |
| virtual void | clearParameters () |
| virtual void | bindoutputoperator (std::ostream &str) const |
| virtual void | bindout (const unsigned int pos, char &val, bool &isnull=BindOutInterface::notnullconstant) |
| Specify where the output data of an select statement are to be stored. | |
| virtual void | bindout (const unsigned int pos, signed char &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, unsigned char &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, short int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, unsigned short int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, unsigned int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, long int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, unsigned long int &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, float &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, double &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, long double &val, bool &isnull=BindOutInterface::notnullconstant) |
| virtual void | bindout (const unsigned int pos, std::string &val, bool &isnull=BindOutInterface::notnullconstant) |
Static Public Member Functions | |
| static void | bindoutputoperator (std::ostream &str, const _argst &) |
Static Public Attributes | |
| static bool | notnullconstant |
Protected Types | |
|
typedef SQL::Bind < SQLType, SQLTypeImpl > | super_bind |
|
typedef fatalmind::SQLSelect | super |
| typedef gc_ptr< VBC > | _refT |
|
typedef std::vector < _refT > | _outparamt |
Protected Member Functions | |
| virtual Clone * | DoClone () const |
| bool | ishighlimit (int, mysqlResource &rdbh) const |
| void | islowlimit (int, mysqlResource &rdbh) const |
| const PT::factory_t & | getFactory (const ResourcePool< PT > &p) const |
| VBC & | getOutParam (const unsigned int pos) |
| void | setIterators () |
Protected Attributes | |
| SQL::SQLStatement | _SQL |
| int | highlimit |
| int | lowlimit |
| bool | hardhighlimit |
| _argst | _args |
| _outparamt | _outparam |
| _outparamt::const_iterator | _begin |
| _outparamt::const_iterator | _end |
| SQL::SQLFetcher & | fetcher |
Friends | |
| class | internal::registerFinish |
| class | ResourcePool< PT > |
| virtual void fatalmind::Command< PT >::execute | ( | typename PT::resource_t & | rr | ) | [pure virtual, inherited] |
The execute method is the one which actually carries out the work.
This method gets called by ResourcePool with a (valid) plain resource which was obtained from the pool.
On normal execution (no exception) the resource will be free()ed, on abnormal execution (exception) the resource will be failed. If you need to throw an functional exception which should not cause failing of the resource, derive this exception from NoFailoverException.
| virtual void fatalmind::SQL::Bind< VBC, CT >::bind | ( | const unsigned int | pos, | |
| const char & | val, | |||
| bool | isnull = false | |||
| ) | [inline, virtual, inherited] |
Binds an actual input value for an placeholder in the SQL statement.
All binding is done by value! This means the passed data are copied to internal storage. Changing your original copy of your data after passing it to bind() is therefore safe.
| pos | The position indicator. The number of placeholder (?) in the SQL string. Counted from the left starting at 0. | |
| val | the actual value. | |
| nul | NULL inidcator, if set to yes the actual value to be bound will be NULL. Please note that you still need to provide a valid value! |
Implements fatalmind::SQL::BindInterface.
| virtual void fatalmind::SQL::BindOut< VBC, CT >::bindout | ( | const unsigned int | pos, | |
| char & | val, | |||
| bool & | isnull = BindOutInterface::notnullconstant | |||
| ) | [inline, virtual, inherited] |
Specify where the output data of an select statement are to be stored.
You need to specify an place where the columns for an select statement are to be stored. After each fetch those variables will be propagated with the actual values received from the select statement. You can also specify a bool which will be used as indicator if the fatched column is NULL. If you omit this third, optional parameter an Exception will be thrown in case a fetched column is NULL.
| pos | The column number to be bound. Numbering starts with the leftmost column at 0. | |
| val | The variable which should contain the value of this column after the fetch. Each time a row is retrieved the according column value value will be available in that variable. The content of the variable will not be changed in case the column is NULL or the execution failed because of an exception. Exclusive access is expected, so there are no synchronization effords taken by the select commands. The variable must be availalbe throughout the whole time of execution. | |
| isnull | The optional third argument specifies a bool variable which will be set to true if the fetched column is NULL or to false otherwise. You must supply this indicator variable if you might retrieve NULL for this column. Not supplying an indicator varaible will cause anIndicator variable required but not supplied. exception. Well, so if you are sure your result will never be NULL, it's save to not provide the third arguement. In case you were wrong, you will receive an exception. |
Implements fatalmind::SQL::BindOutInterface.
1.5.3