org.apache.felix.ipojo.extender.internal.linker

Class DeclarationLinker

java.lang.Object

org.apache.felix.ipojo.extender.internal.linker.DeclarationLinker

All Implemented Interfaces:

Lifecycle, org.osgi.util.tracker.ServiceTrackerCustomizer

public class DeclarationLinker
extends java.lang.Object
implements org.osgi.util.tracker.ServiceTrackerCustomizer, Lifecycle

The linker is responsible to bind extension declaration to type declaration. It tracks TypeDeclaration, and reifies them as factory.

Constructor Summary

Constructors

Constructor and Description
DeclarationLinker(org.osgi.framework.BundleContext bundleContext, QueueService queueService) Creates the linker.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	addingService(org.osgi.framework.ServiceReference reference) A new type declaration was published.
void	modifiedService(org.osgi.framework.ServiceReference reference, java.lang.Object service) Type declaration cannot be modified.
void	removedService(org.osgi.framework.ServiceReference reference, java.lang.Object service) A type declaration service was withdrawn from the service registry.
void	start() When the iPOJO management starts, we look for type declaration.
void	stop() When iPOJO stops, we close the tracker.

Methods inherited from class java.lang.Object

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

Constructor Detail

DeclarationLinker

public DeclarationLinker(org.osgi.framework.BundleContext bundleContext,
                         QueueService queueService)

Creates the linker.

Parameters:

bundleContext - the bundle context

queueService - the queue service

Method Detail

start

public void start()

When the iPOJO management starts, we look for type declaration.

Specified by:

start in interface Lifecycle

stop

public void stop()

When iPOJO stops, we close the tracker.

Specified by:

stop in interface Lifecycle

addingService

public java.lang.Object addingService(org.osgi.framework.ServiceReference reference)

A new type declaration was published.

Specified by:

addingService in interface org.osgi.util.tracker.ServiceTrackerCustomizer

Parameters:

reference - the service reference of the type declaration

Returns:

the managed type object wrapping the service object.

modifiedService

public void modifiedService(org.osgi.framework.ServiceReference reference,
                            java.lang.Object service)

Type declaration cannot be modified.

Specified by:

modifiedService in interface org.osgi.util.tracker.ServiceTrackerCustomizer

Parameters:

reference - the reference

service - the object returned by addingService(org.osgi.framework.ServiceReference)

removedService

public void removedService(org.osgi.framework.ServiceReference reference,
                           java.lang.Object service)

A type declaration service was withdrawn from the service registry.

Specified by:

removedService in interface org.osgi.util.tracker.ServiceTrackerCustomizer

Parameters:

reference - the leaving reference

service - the object returned by addingService(org.osgi.framework.ServiceReference)