sdbclient::sdbDataSource Class Reference

The sdb data source. More...

#include <sdbDataSource.hpp>

Inherits SDBObject.

Public Member Functions
	sdbDataSource ()
	The constructor of sdbDataSource.
	~sdbDataSource ()
	The destructor of sdbDataSource.
INT32	init (const std::string &url, const sdbDataSourceConf &conf)
	Initialize sdbDataSource.
INT32	init (const std::vector< std::string > &vUrls, const sdbDataSourceConf &conf)
	Initialize sdbDataSource.
INT32	getIdleConnNum () const
	Get idle connection number or -1 for DataSource has not been initialized yet.
INT32	getUsedConnNum () const
	Get used connection number or -1 for DataSource has not been initialized yet.
INT32	getNormalCoordNum () const
	Get the number of reachable coord nodes or -1 for DataSource has not been initialized yet.
INT32	getAbnormalCoordNum () const
	Get the number of unreachable coord nodes or -1 for DataSource has not been initialized yet.
INT32	getLocalCoordNum () const
	Get the number of local coord nodes or -1 for DataSource has not been initialized yet.
void	addCoord (const string &url)
	Add a coord node.
void	removeCoord (const string &url)
	Remove a coord node.
INT32	enable ()
	Enable sdbDataSource.
INT32	disable ()
	Disable sdbDataSource. After disable, the DataSource will disconnect all the connections and release the handle of the connections. So stop using the connection handle which has not been released to the DataSource.
INT32	getConnection (sdb *&conn, INT64 timeoutms=5000)
	Get a connection form sdbDataSource.
void	releaseConnection (sdb *conn)
	Give back a connection to sdbDataSource.
void	close ()
	Close sdbDataSource.

Detailed Description

The sdb data source.

Member Function Documentation

INT32 sdbclient::sdbDataSource::addCoord

(

const string &

url

)

Add a coord node.

Parameters

[in]

url

A coord node("ubuntu-xxx:11810")

INT32 sdbclient::sdbDataSource::disable

(

)

Disable sdbDataSource. After disable, the DataSource will disconnect all the connections and release the handle of the connections. So stop using the connection handle which has not been released to the DataSource.

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::enable

(

)

Enable sdbDataSource.

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::getAbnormalCoordNum

(

)

const

Get the number of unreachable coord nodes or -1 for DataSource has not been initialized yet.

Return values

The	number of unreachable coord nodes

INT32 sdbclient::sdbDataSource::getConnection	(	sdb *&	conn,
		INT64	timeoutsec = 5000
	)

Get a connection form sdbDataSource.

Parameters

[out]	conn	A connection
[in]	timeoutms	The time to wait when connection number reach to max connection number,default:5000ms. when timeoutms is set to 0, means waiting until a connection is available. when timeoutms is less than 0, set it to be 0.

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::getIdleConnNum

(

)

const

Get idle connection number or -1 for DataSource has not been initialized yet.

Return values

The	number of idle connection

INT32 sdbclient::sdbDataSource::getLocalCoordNum

(

)

const

Get the number of local coord nodes or -1 for DataSource has not been initialized yet.

Return values

The	number of local coord nodes

INT32 sdbclient::sdbDataSource::getNormalCoordNum

(

)

const

Get the number of reachable coord nodes or -1 for DataSource has not been initialized yet.

Return values

The	number of reachable coord nodes

INT32 sdbclient::sdbDataSource::getUsedConnNum

(

)

const

Get used connection number or -1 for DataSource has not been initialized yet.

Return values

The	number of used connection

INT32 sdbclient::sdbDataSource::init	(	const std::string &	url,
		const sdbDataSourceConf &	conf
	)

Initialize sdbDataSource.

Parameters

[in]	url	A coord node("ubuntu-xxx:11810")
[in]	conf	The sdbDataSourceConf

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::init	(	const std::vector< std::string > &	vUrls,
		const sdbDataSourceConf &	conf
	)

Initialize sdbDataSource.

Parameters

[in]	vUrls	A list of coord node("ubuntu-xxx:11810")
[in]	conf	The sdbDataSourceConf

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::releaseConnection

(

sdb *

conn

)

Give back a connection to sdbDataSource.

Parameters

[in]

conn

A connection

Return values

SDB_OK	Operation Success
Others	Operation Fail

INT32 sdbclient::sdbDataSource::removeCoord

(

const string &

url

)

Remove a coord node.

Parameters

[in]

url

A coord node("ubuntu-xxx:11810")

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

• sdbDataSource.hpp