org.qi4j.spi.service.importer
Class ServiceInstanceImporter<T>

java.lang.Object
  org.qi4j.spi.service.importer.ServiceInstanceImporter<T>

All Implemented Interfaces:

ServiceImporter<T>

public class ServiceInstanceImporter<T>
extends Object
implements ServiceImporter<T>

Use a registered service that implements ServiceImporter to do the actual import. The service id of the service that this importer should delegate to must be set as meta-info on this service. Example: module.services(MyServiceImporterService.class).identifiedBy("someid"); module.importedServices(OtherService.class).importedBy(ServiceInstanceImporter.class).setMetaInfo("someid");

Constructor Summary

ServiceInstanceImporter()

Method Summary

T	importService(ImportedServiceDescriptor importedServiceDescriptor) Imports an instance of the service type described in the service descriptor.
boolean	isActive(T o) Ask if the underlying service is currently active or not.
boolean	isAvailable(T instance) Ask if the service is available or not.

Methods inherited from class java.lang.Object

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

Constructor Detail

ServiceInstanceImporter

public ServiceInstanceImporter()

Method Detail

importService

public T importService(ImportedServiceDescriptor importedServiceDescriptor)
                throws ServiceImporterException

Description copied from interface: ServiceImporter

Imports an instance of the service type described in the service descriptor.

Specified by:

importService in interface ServiceImporter<T>

Parameters:

importedServiceDescriptor - The service descriptor.

Returns:

The imported service instance.

Throws:

ServiceImporterException - if import failed.

isActive

public boolean isActive(T o)

Description copied from interface: ServiceImporter

Ask if the underlying service is currently active or not.

Specified by:

isActive in interface ServiceImporter<T>

Parameters:

o - the instance to be checked

Returns:

true if the service is active, false if not

isAvailable

public boolean isAvailable(T instance)

Description copied from interface: ServiceImporter

Ask if the service is available or not.

Specified by:

isAvailable in interface ServiceImporter<T>

Parameters:

instance - the instance to be checked

Returns:

true if the service is available, false if not