Package org.adempiere.base.ds

Class DynamicServiceHolder<T>

java.lang.Object

org.adempiere.base.ds.DynamicServiceHolder<T>

All Implemented Interfaces:

IServiceHolder<T>, IServicesHolder<T>

public class DynamicServiceHolder<T>
extends Object
implements IServiceHolder<T>, IServicesHolder<T>

Holder for OSGI service. Implemented using ServiceTracker.

Author:

hengsin

Constructor Summary

Constructors

Constructor	Description
DynamicServiceHolder(org.osgi.util.tracker.ServiceTracker<T,T> tracker)

Method Summary

Modifier and Type	Method	Description
T	getService()	Get service with highest service.ranking value
IServiceReferenceHolder<T>	getServiceReference()	Get service reference for service with highest service.ranking value
List<IServiceReferenceHolder<T>>	getServiceReferences()	Get list of service reference, sorted by service.ranking (from highest to lowest ranking).
List<T>	getServices()	Get list of service, sorted by service.ranking (from highest to lowest ranking)

Methods inherited from class java.lang.Object

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

Constructor Details

DynamicServiceHolder

public DynamicServiceHolder(org.osgi.util.tracker.ServiceTracker<T,T> tracker)

Parameters:

tracker -

Method Details

getService

public T getService()

Description copied from interface: IServiceHolder

Get service with highest service.ranking value

Specified by:

getService in interface IServiceHolder<T>

Returns:

service instance. null if not available or no matching service found

getServices

public List<T> getServices()

Description copied from interface: IServicesHolder

Get list of service, sorted by service.ranking (from highest to lowest ranking)

Specified by:

getServices in interface IServicesHolder<T>

Returns:

list of service instance. null if not available or no matching service found

getServiceReference

public IServiceReferenceHolder<T> getServiceReference()

Description copied from interface: IServiceHolder

Get service reference for service with highest service.ranking value

Specified by:

getServiceReference in interface IServiceHolder<T>

Returns:

IServiceReferenceHolder

getServiceReferences

public List<IServiceReferenceHolder<T>> getServiceReferences()

Description copied from interface: IServicesHolder

Get list of service reference, sorted by service.ranking (from highest to lowest ranking). If you want to cache service, cache IServiceReferenceHolder instead of the actual service object

Specified by:

getServiceReferences in interface IServicesHolder<T>

Returns:

list of IServiceReferenceHolder