trippingcyril::database::postgres::PostGres Class Reference

A non blocking postgresql implementation of the Database interface. More...

#include <Postgres.h>

Inheritance diagram for trippingcyril::database::postgres::PostGres:

Collaboration diagram for trippingcyril::database::postgres::PostGres:

Public Member Functions
	PostGres (const String &connstring, const Module *pModule=NULL)
virtual	~PostGres ()
void	SelectLamdba (const String &query, const DBLamdbaCallback &callback, const DBLamdbaErrorCallback &errorcallback=nullptr) override
	Do a select operation but use a lamdba as a callback instead of a DBCallback class. More...
void	InsertLamdba (const String &query, const DBLamdbaCallback &callback, const DBLamdbaErrorCallback &errorcallback=nullptr) override
	Do a select operation but use a lamdba as a callback instead of a DBCallback class. More...
const DBResult *	Select (const String &query, DBCallback *callback=NULL) override
	Do or queue (depends on implementation) a select operation. More...
const DBResult *	Insert (const String &query, DBCallback *callback=NULL) override
	Do or queue (depends on implementation) an insert operation. More...
bool	isIdle () const override
bool	Listen (const String &key, PGNotifyListener *listener)
void	Unlisten (const String &key)
virtual void	SetStayConnected (bool b) override
Public Member Functions inherited from trippingcyril::database::Database
	Database (const Module *pModule=NULL)
virtual	~Database ()
void	enableAutoCommit ()
	Enables auto commiting. More...
void	disableAutoCommit ()
	Enables auto commiting. More...
Public Member Functions inherited from trippingcyril::trippingcyril::Event
	Event (const Module *module)
virtual	~Event ()
const Module *	GetModule () const

Additional Inherited Members
Protected Member Functions inherited from trippingcyril::trippingcyril::Event
event_base *	GetEventBase () const
evdns_base *	GetDNSBase () const
Protected Attributes inherited from trippingcyril::database::Database
bool	_autocommit: 1
bool	_stay_connected: 1
Protected Attributes inherited from trippingcyril::trippingcyril::Event
const Module *	module

Detailed Description

A non blocking postgresql implementation of the Database interface.

Note

This implementation is somewhat threadsafe, all queries will be executed on the thread that the event base is running on, however the query queueing methods are not threadsafe!

Constructor & Destructor Documentation

trippingcyril::database::postgres::PostGres::PostGres	(	const String &	connstring,
		const Module *	pModule = NULL
	)

General constructor

Parameters

connstring	The connection string for this database
pModule	The module to register this database on

virtual trippingcyril::database::postgres::PostGres::~PostGres ( )

virtual

General deconstructor

Member Function Documentation

const DBResult* trippingcyril::database::postgres::PostGres::Insert ( const String &  query, DBCallback *  callback = NULL  )

overridevirtual

Do or queue (depends on implementation) an insert operation.

Parameters

query	The query to execute
callback	The callback you would like bundled with this query

Returns

Either the result of a query or just NULL

Implements trippingcyril::database::Database.

void trippingcyril::database::postgres::PostGres::InsertLamdba ( const String &  query, const DBLamdbaCallback &  callback, const DBLamdbaErrorCallback &  errorcallback = nullptr  )

overridevirtual

Do a select operation but use a lamdba as a callback instead of a DBCallback class.

Parameters

query	The query to execute
callback	The sucess callback
errorcallback	The errorcallback

Note

Requires C++11

In case you're implementing the database class you are not required to do anything special, however if you want you may do so anyway.

Reimplemented from trippingcyril::database::Database.

bool trippingcyril::database::postgres::PostGres::isIdle ( ) const

inlineoverridevirtual

Returns

True if the database is idle

Implements trippingcyril::database::Database.

bool trippingcyril::database::postgres::PostGres::Listen	(	const String &	key,
		PGNotifyListener *	listener
	)

Demands SetStayConnected(true), will apply automatically

Returns

False if you're already listening for this or if it contained some invalid characters

See Also

String::OnlyContains

const DBResult* trippingcyril::database::postgres::PostGres::Select ( const String &  query, DBCallback *  callback = NULL  )

overridevirtual

Do or queue (depends on implementation) a select operation.

Parameters

query	The query to execute
callback	The callback you would like bundled with this query

Returns

Either the result of a query or just NULL

Implements trippingcyril::database::Database.

void trippingcyril::database::postgres::PostGres::SelectLamdba ( const String &  query, const DBLamdbaCallback &  callback, const DBLamdbaErrorCallback &  errorcallback = nullptr  )

overridevirtual

Do a select operation but use a lamdba as a callback instead of a DBCallback class.

Parameters

query	The query to execute
callback	The sucess callback
errorcallback	The errorcallback

Note

Requires C++11

In case you're implementing the database class you are not required to do anything special, however if you want you may do so anyway.

Reimplemented from trippingcyril::database::Database.

virtual void trippingcyril::database::postgres::PostGres::SetStayConnected ( bool  b )

inlineoverridevirtual

Set the stay connected mode on or off

Reimplemented from trippingcyril::database::Database.

void trippingcyril::database::postgres::PostGres::Unlisten

(

const String &

key

)

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

• include/Postgres.h