pqxxobject::rowconvert Class Reference

Database row conversion. More...

#include <rowconvert.h>

Inheritance diagram for pqxxobject::rowconvert:

List of all members.

Public Types
enum	operation_type { OPERATION_INSERT, OPERATION_UPDATE, OPERATION_DELETE }
	Operation to perform on the database. More...
Public Member Functions
	rowconvert ()
	The constructor.
virtual	~rowconvert ()
	The destructor.
virtual void	initialise (pqxx::result::const_iterator row, transaction &tran)=0
	Create a "row object" from a row of a result set.
virtual void	insert (transaction &tran)=0
	Insert a row into a table.
virtual void	update (transaction &tran)=0
	Update a row from a table.
virtual void	erase (transaction &tran)=0
	Remove a row from a table.
virtual void	refresh (transaction &tran)=0
	Refresh a row from a table.

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Detailed Description

Database row conversion.

This class (function object) represents the operations that may be performed by a single row in a database table. This means all conversions between a "row object" class and a row in a database table (or result set) such as selection, insertion, update and deletion.

This class should be inherited by all row classes.

Definition at line 40 of file rowconvert.h.

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Member Enumeration Documentation

enum pqxxobject::rowconvert::operation_type

Operation to perform on the database. Enumeration values: OPERATION_INSERT  Insert a row into the database table. OPERATION_UPDATE  Update a row in the database table. OPERATION_DELETE  Delete a row from the database table. Definition at line 52 of file rowconvert.h.

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Constructor & Destructor Documentation

pqxxobject::rowconvert::rowconvert (   )  [inline]

The constructor. Definition at line 44 of file rowconvert.h.

virtual pqxxobject::rowconvert::~rowconvert (   )  [inline, virtual]

The destructor. Definition at line 48 of file rowconvert.h.

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Member Function Documentation

virtual void pqxxobject::rowconvert::erase (  transaction &  tran  )  [pure virtual]

Remove a row from a table. Parameters: tran  the transaction which will be used to execute queries.

virtual void pqxxobject::rowconvert::initialise (  pqxx::result::const_iterator  row, transaction &  tran )  [pure virtual]

Create a "row object" from a row of a result set. This method converts a row of a result set into an object. Parameters: row  an iterator pointing to a row of a result set. tran  the transaction which was used to return row. This is used for recursive initialisation of objects e.g. when contained or derived-from objects must also be initialised. Returns: a pointer to a row object, or NULL if the conversion failed.

virtual void pqxxobject::rowconvert::insert (  transaction &  tran  )  [pure virtual]

Insert a row into a table. Parameters: tran  the transaction which will be used to execute queries.

virtual void pqxxobject::rowconvert::refresh (  transaction &  tran  )  [pure virtual]

Refresh a row from a table. Parameters: tran  the transaction which will be used to execute queries.

virtual void pqxxobject::rowconvert::update (  transaction &  tran  )  [pure virtual]

Update a row from a table. Parameters: tran  the transaction which will be used to execute queries.

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

• pqxx-object/rowconvert.h

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