io.wcm.sling.commons.osgi

Class RankedServices<T>

java.lang.Object

io.wcm.sling.commons.osgi.RankedServices<T>

Type Parameters:

T - Service type

All Implemented Interfaces:

Iterable<T>

public final class RankedServices<T>
extends Object
implements Iterable<T>

Helper class that collects all services registered via OSGi bind/unbind methods. Implementation is thread-safe.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	RankedServices.ChangeListener Notification for changes on services list.

Constructor Summary

Constructors

Constructor and Description
RankedServices() Instantiate without change listener.
RankedServices(RankedServices.ChangeListener changeListener) Instantiate without change listener.

Method Summary

Methods

Modifier and Type	Method and Description
void	bind(T service, Map<String,Object> props) Handle bind service event.
Collection<T>	get()
Iterator<T>	iterator()
void	unbind(T service, Map<String,Object> props) Handle unbind service event.

Methods inherited from class java.lang.Object

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

Constructor Detail

RankedServices

public RankedServices()

Instantiate without change listener.

RankedServices

public RankedServices(RankedServices.ChangeListener changeListener)

Instantiate without change listener.

Parameters:

changeListener - Change listener

Method Detail

bind

public void bind(T service,
        Map<String,Object> props)

Handle bind service event.

Parameters:

service - Service instance

props - Service reference properties

unbind

public void unbind(T service,
          Map<String,Object> props)

Handle unbind service event.

Parameters:

service - Service instance

props - Service reference properties

get

public Collection<T> get()

Returns:

List of all services registered in OSGi, sorted by service ranking.

iterator

public Iterator<T> iterator()

Specified by:

iterator in interface Iterable<T>