org.eclipse.scada.da.datasource.item

Class DataItemSourceFactoryImpl

java.lang.Object

org.eclipse.scada.ca.common.factory.AbstractServiceConfigurationFactory<DataItemSourceImpl>

org.eclipse.scada.da.datasource.item.DataItemSourceFactoryImpl

All Implemented Interfaces:

ConfigurationFactory

public class DataItemSourceFactoryImpl
extends AbstractServiceConfigurationFactory<DataItemSourceImpl>

Nested Class Summary

Nested classes/interfaces inherited from class org.eclipse.scada.ca.common.factory.AbstractServiceConfigurationFactory

AbstractServiceConfigurationFactory.Entry<T>

Field Summary

Fields

Modifier and Type	Field and Description
static String	FACTORY_ID

Fields inherited from class org.eclipse.scada.ca.common.factory.AbstractServiceConfigurationFactory

context

Constructor Summary

Constructors

Constructor and Description
DataItemSourceFactoryImpl(org.osgi.framework.BundleContext context, Executor executor)

Method Summary

Modifier and Type	Method and Description
protected AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl>	createService(UserInformation userInformation, String configurationId, org.osgi.framework.BundleContext context, Map<String,String> parameters) Create a new service instance
void	dispose()
protected void	disposeService(UserInformation userInformation, String configurationId, DataItemSourceImpl service) Dispose a service
protected AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl>	updateService(UserInformation userInformation, String configurationId, AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl> entry, Map<String,String> parameters) Update a service configuration

Methods inherited from class org.eclipse.scada.ca.common.factory.AbstractServiceConfigurationFactory

delete, getService, unregisterService, update

Methods inherited from class java.lang.Object

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

Field Detail

FACTORY_ID

public static final String FACTORY_ID

See Also:

Constant Field Values

Constructor Detail

DataItemSourceFactoryImpl

public DataItemSourceFactoryImpl(org.osgi.framework.BundleContext context,
                                 Executor executor)

Method Detail

createService

protected AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl> createService(UserInformation userInformation,
                                                                                      String configurationId,
                                                                                      org.osgi.framework.BundleContext context,
                                                                                      Map<String,String> parameters)
                                                                               throws Exception

Description copied from class: AbstractServiceConfigurationFactory

Create a new service instance

The method must also register the service with the OSGi bundle context if needed. The service registration must then be placed into the result that is returned. This is an optional step. There is no need to register the created service.

Specified by:

createService in class AbstractServiceConfigurationFactory<DataItemSourceImpl>

configurationId - the configuration id for which the service should be created

context - the bundle context

parameters - the initial parameters

Returns:

a new entry instance which holds the service. This method must never return null

Throws:

Exception - if anything goes wrong

disposeService

protected void disposeService(UserInformation userInformation,
                              String configurationId,
                              DataItemSourceImpl service)

Description copied from class: AbstractServiceConfigurationFactory

Dispose a service

If the service entry contains a service handle, the service is automatically unregistered.

Specified by:

disposeService in class AbstractServiceConfigurationFactory<DataItemSourceImpl>

updateService

protected AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl> updateService(UserInformation userInformation,
                                                                                      String configurationId,
                                                                                      AbstractServiceConfigurationFactory.Entry<DataItemSourceImpl> entry,
                                                                                      Map<String,String> parameters)
                                                                               throws Exception

Description copied from class: AbstractServiceConfigurationFactory

Update a service configuration

If a new service entry is returned the old one will get disposed after the call returns

Specified by:

updateService in class AbstractServiceConfigurationFactory<DataItemSourceImpl>

configurationId - the configuration to update

entry - the original service entry

parameters - the new parameters

Returns:

the new service entry or null if the entry did not change

Throws:

Exception - if anything goes wrong

dispose

public void dispose()

Overrides:

dispose in class AbstractServiceConfigurationFactory<DataItemSourceImpl>