org.apache.tamaya.core.internal

Class OSGIServiceContext

java.lang.Object

org.apache.tamaya.core.internal.OSGIServiceContext

All Implemented Interfaces:

ServiceContext

public class OSGIServiceContext
extends Object
implements ServiceContext

ServiceContext implementation based on OSGI Service mechanisms.

Constructor Summary

Constructors

Constructor and Description
OSGIServiceContext(org.osgi.framework.BundleContext bundleContext)

Method Summary

Modifier and Type	Method and Description
<T> T	getService(Class<T> serviceType) Access a service singleton via its type.
<T> List<T>	getServices(Class<T> serviceType) Access a list current services, given its type.
boolean	isInitialized()
int	ordinal()

Methods inherited from class java.lang.Object

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

Constructor Detail

OSGIServiceContext

public OSGIServiceContext(org.osgi.framework.BundleContext bundleContext)

Method Detail

isInitialized

public boolean isInitialized()

ordinal

public int ordinal()

Specified by:

ordinal in interface ServiceContext

Returns:

ordinal of the ServiceContext. The one with the highest ordinal will be taken.

getService

public <T> T getService(Class<T> serviceType)

Description copied from interface: ServiceContext

Access a service singleton via its type. If multiple implementations for the very serviceType exist then the one with the highest Priority will be used.

Specified by:

getService in interface ServiceContext

Type Parameters:

T - the type of the service type.

Parameters:

serviceType - the service type.

Returns:

The instance to be used, or null

getServices

public <T> List<T> getServices(Class<T> serviceType)

Description copied from interface: ServiceContext

Access a list current services, given its type. The bootstrap mechanism should order the instance for precedence, hereby the most significant should be first in order.

Specified by:

getServices in interface ServiceContext

Type Parameters:

T - the type of the list element returned by this method

Parameters:

serviceType - the service type.

Returns:

The instance to be used, never null