litesql::Persistent Class Reference

An abstract base class of persistents objects. More...

#include <persistent.hpp>

Collaboration diagram for litesql::Persistent:

Public Member Functions
const Database &	getDatabase () const
	returns reference to Database the object is in
bool	isInDatabase () const
	returns true if object is in database
const Persistent &	operator= (const Persistent &p)
	copies values and keeps fields unchanged
	Persistent (const Persistent &p)
	copies values and registers Field-objects to fields
	Persistent (const Database &_db, const Record &row)
	Persistent (const Database &_db)
	creates empty Persistent
virtual void	onDelete ()
virtual	~Persistent ()
	empty

Static Public Member Functions
static Split	getTablesFromFieldTypes (const std::vector< FieldType > &fdatas)
	selectObjectQuery uses this to list tables used by Persistent

Protected Types
typedef std::map< std::string, std::vector< pair< FieldType, std::string > > >	Updates

Protected Member Functions
std::string	insert (Record &tables, Records &fieldRecs, Records &values, const std::string &sequence)
	executed when object is created into database
void	update (const Updates &updates)
template<class T>
void	updateField (litesql::Persistent::Updates &updates, const std::string &table, litesql::Field< T > fld)
void	prepareUpdate (Updates &updates, const std::string &table)
void	deleteFromTable (const std::string &table, const std::string &id)

Protected Attributes
const Database *	db
	pointer to current Database Persistent is assigned to.
bool	inDatabase
	flag that indicates that object is stored in some database.
int	oldKey
	used to keep track of ID changes.

Detailed Description

An abstract base class of persistents objects.

Member Function Documentation

getTablesFromFieldTypes()

Split litesql::Persistent::getTablesFromFieldTypes ( const std::vector< FieldType > & fdatas )

static

selectObjectQuery uses this to list tables used by Persistent

Parameters

fdatas

field information

Member Data Documentation

db

const Database* litesql::Persistent::db

protected

pointer to current Database Persistent is assigned to.

It is not a reference because Persistents must be assignable using operator=

Referenced by getDatabase(), insert(), operator=(), Persistent(), and Persistent().

inDatabase

bool litesql::Persistent::inDatabase

protected

flag that indicates that object is stored in some database.

It might be more accurate to use pointer in stead of boolean.

Referenced by insert(), isInDatabase(), operator=(), Persistent(), and Persistent().

oldKey

int litesql::Persistent::oldKey

protected

used to keep track of ID changes.

When user changes Persistent object's identifier (ID, field 0), record has to be upcasted to change row id of all tables of object

Referenced by insert(), operator=(), Persistent(), and Persistent().

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

• persistent.hpp
• persistent.cpp