com.redhat.thermostat.storage.internal

Class DbServiceImpl

java.lang.Object

com.redhat.thermostat.storage.internal.DbServiceImpl

All Implemented Interfaces:

DbService

public class DbServiceImpl
extends Object
implements DbService

Method Summary

Methods

Modifier and Type	Method and Description
void	addConnectionListener(Connection.ConnectionListener listener) Registers the supplied ConnectionListener to be notified when the status of the database connection changes.
void	connect() Connects to Storage and registers Storage instance which was used for the connection as a service.
static DbService	create(String username, String password, String dbUrl) Factory method for creating a DbService instance.
void	disconnect() Disconnects from Storage.
String	getConnectionUrl()
void	removeConnectionListener(Connection.ConnectionListener listener) Unregisters the supplied ConnectionListener if it was previously registered via #addConnectionListener(ConnectionListener).

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

connect

public void connect()
             throws ConnectionException

Description copied from interface: DbService

Connects to Storage and registers Storage instance which was used for the connection as a service.

Pre: Neither DbService nor Storage are registered as services.
Post: Both DbService and Storage are registered as services.

Specified by:

connect in interface DbService

Throws:

ConnectionException - If DB connection cannot be established.

disconnect

public void disconnect()
                throws ConnectionException

Description copied from interface: DbService

Disconnects from Storage.

Pre: Both DbService and Storage are registered as services.
Post: Neither DbService nor Storage are registered as services.

Specified by:

disconnect in interface DbService

Throws:

ConnectionException

getConnectionUrl

public String getConnectionUrl()

Specified by:

getConnectionUrl in interface DbService

create

public static DbService create(String username,
               String password,
               String dbUrl)
                        throws StorageException

Factory method for creating a DbService instance.

Parameters:

username -

password -

dbUrl -

Returns:

a DbService instance

Throws:

StorageException - if no storage provider exists for the given dbUrl.

addConnectionListener

public void addConnectionListener(Connection.ConnectionListener listener)

Description copied from interface: DbService

Registers the supplied ConnectionListener to be notified when the status of the database connection changes.

Specified by:

addConnectionListener in interface DbService

Parameters:

listener - - the listener to be registered

removeConnectionListener

public void removeConnectionListener(Connection.ConnectionListener listener)

Description copied from interface: DbService

Unregisters the supplied ConnectionListener if it was previously registered via #addConnectionListener(ConnectionListener).

Specified by:

removeConnectionListener in interface DbService

Parameters:

listener - - the listener to be unregistered