org.huihoo.jfox.datasource
Class PoolDataSource

org.huihoo.jfox.datasource.PoolDataSource

All Implemented Interfaces:

Component, ComponentSupportMBean, Loggable, javax.naming.spi.ObjectFactory, Persistentable, PoolDataSourceMBean, javax.naming.Referenceable, java.io.Serializable

public class PoolDataSource

implements javax.naming.Referenceable, javax.naming.spi.ObjectFactory, PoolDataSourceMBean

Author:

Kelvin Wu

See Also:

Serialized Form

Field Summary

protected SimpleConnectionPool

pool

Constructor Summary

PoolDataSource()
Default constructor used by JNDI to get a new Instance without any parameters.

PoolDataSource(java.lang.String dbDriver, java.lang.String dbURL, java.lang.String user, java.lang.String password)
Constructor specify database connection parameters to generate a valid and usable datasource.

Method Summary

protected void	doDestroy()
protected void	doInit()
java.sql.Connection	getConnection() Get usable connection from datasource
java.sql.Connection	getConnection(java.lang.String username, java.lang.String password) Get connection by specific user name and password, the connection is not pooled by Connection Pool
java.lang.String	getDbDriver()
java.lang.String	getDbURL()
int	getLoginTimeout()
java.io.PrintWriter	getLogWriter() Get logger writer
java.lang.Object	getObjectInstance(java.lang.Object obj, javax.naming.Name name, javax.naming.Context nameCtx, java.util.Hashtable environment) Method that inherited from ObjectFactory.
java.lang.String	getPassword()
javax.naming.Reference	getReference() Method that inherited from Referenceable.
java.lang.String	getUser()
void	setDbDriver(java.lang.String dbDriver)
void	setDbURL(java.lang.String dbURL)
void	setLoginTimeout(int seconds)
void	setLogWriter(java.io.PrintWriter out)
void	setPassword(java.lang.String password)
void	setUser(java.lang.String user)

Methods inherited from interface org.huihoo.jfox.service.ComponentSupportMBean

getObjectName, getProxyInstance

Methods inherited from interface org.huihoo.jfox.service.Component

destroy, getName, getState, init

Methods inherited from interface org.huihoo.jfox.service.Loggable

getLogger

Field Detail

pool

protected SimpleConnectionPool pool

Constructor Detail

PoolDataSource

public PoolDataSource()

Default constructor used by JNDI to get a new Instance without any parameters.

PoolDataSource

public PoolDataSource(java.lang.String dbDriver,
                      java.lang.String dbURL,
                      java.lang.String user,
                      java.lang.String password)
               throws java.lang.Exception

Constructor specify database connection parameters to generate a valid and usable datasource.

Parameters:

dbDriver - database class name according your dabase

dbURL - database url used to access database

user - valid database user

password - // corresponding database password

Throws:

java.lang.Exception - any exception who cares?

Method Detail

getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException

Get usable connection from datasource

Returns:

Connection the valid database connection can used by user

Throws:

java.sql.SQLException -

getConnection

public java.sql.Connection getConnection(java.lang.String username,
                                         java.lang.String password)
                                  throws java.sql.SQLException

Get connection by specific user name and password, the connection is not pooled by Connection Pool

Parameters:

username -

password -

Returns:

Throws:

java.sql.SQLException -

getLogWriter

public java.io.PrintWriter getLogWriter()
                                 throws java.sql.SQLException

Get logger writer

Returns:

Throws:

java.sql.SQLException -

setLogWriter

public void setLogWriter(java.io.PrintWriter out)
                  throws java.sql.SQLException

Parameters:

out -

Throws:

java.sql.SQLException -

setLoginTimeout

public void setLoginTimeout(int seconds)
                     throws java.sql.SQLException

Parameters:

seconds -

Throws:

java.sql.SQLException -

getLoginTimeout

public int getLoginTimeout()
                    throws java.sql.SQLException

Returns:

Throws:

java.sql.SQLException -

getReference

public javax.naming.Reference getReference()
                                    throws javax.naming.NamingException

Method that inherited from Referenceable.

Specified by:

getReference in interface javax.naming.Referenceable

Returns:

Throws:

javax.naming.NamingException -

getObjectInstance

public java.lang.Object getObjectInstance(java.lang.Object obj,
                                          javax.naming.Name name,
                                          javax.naming.Context nameCtx,
                                          java.util.Hashtable environment)
                                   throws java.lang.Exception

Method that inherited from ObjectFactory.

Specified by:

getObjectInstance in interface javax.naming.spi.ObjectFactory

Parameters:

obj -

name -

nameCtx -

environment -

Returns:

Throws:

java.lang.Exception -

getDbDriver

public java.lang.String getDbDriver()

Specified by:

getDbDriver in interface PoolDataSourceMBean

setDbDriver

public void setDbDriver(java.lang.String dbDriver)

Specified by:

setDbDriver in interface PoolDataSourceMBean

getDbURL

public java.lang.String getDbURL()

Specified by:

getDbURL in interface PoolDataSourceMBean

setDbURL

public void setDbURL(java.lang.String dbURL)

Specified by:

setDbURL in interface PoolDataSourceMBean

getUser

public java.lang.String getUser()

Specified by:

getUser in interface PoolDataSourceMBean

setUser

public void setUser(java.lang.String user)

Specified by:

setUser in interface PoolDataSourceMBean

getPassword

public java.lang.String getPassword()

Specified by:

getPassword in interface PoolDataSourceMBean

setPassword

public void setPassword(java.lang.String password)

Specified by:

setPassword in interface PoolDataSourceMBean

doInit

protected void doInit()
               throws java.lang.Exception

doDestroy

protected void doDestroy()
                  throws java.lang.Exception