org.apache.polygene.api.service.importer

Class ServiceInstanceImporter<T>

java.lang.Object

org.apache.polygene.api.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

Constructors

Constructor and Description
ServiceInstanceImporter()

Method Summary

Modifier and Type	Method and Description
T	importService(ImportedServiceDescriptor importedServiceDescriptor) Imports an instance of the service type described in the service descriptor.
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.

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