org.apache.felix.ipojo.dependency.impl

Class EmptyBasedServiceRankingInterceptor

java.lang.Object

org.apache.felix.ipojo.dependency.impl.EmptyBasedServiceRankingInterceptor

All Implemented Interfaces:

DependencyInterceptor, ServiceRankingInterceptor

public class EmptyBasedServiceRankingInterceptor
extends java.lang.Object
implements ServiceRankingInterceptor

An empty version of the ranking interceptor.

Field Summary

Fields inherited from interface org.apache.felix.ipojo.dependency.interceptors.DependencyInterceptor

TARGET_PROPERTY

Constructor Summary

Constructors

Constructor and Description
EmptyBasedServiceRankingInterceptor()

Method Summary

Modifier and Type	Method and Description
void	close(DependencyModel dependency) The interceptor won't be use anymore by the given dependency.
java.util.List<org.osgi.framework.ServiceReference>	getServiceReferences(DependencyModel dependency, java.util.List<org.osgi.framework.ServiceReference> matching) Gets the sorted set of selected reference.
java.util.List<org.osgi.framework.ServiceReference>	onServiceArrival(DependencyModel dependency, java.util.List<org.osgi.framework.ServiceReference> matching, org.osgi.framework.ServiceReference<?> reference) A new service arrives in the matching set.
java.util.List<org.osgi.framework.ServiceReference>	onServiceDeparture(DependencyModel dependency, java.util.List<org.osgi.framework.ServiceReference> matching, org.osgi.framework.ServiceReference<?> reference) A service leaves the matching set.
java.util.List<org.osgi.framework.ServiceReference>	onServiceModified(DependencyModel dependency, java.util.List<org.osgi.framework.ServiceReference> matching, org.osgi.framework.ServiceReference<?> reference) A service from the matching set was modified.
void	open(DependencyModel dependency) The interceptor is plugged to the given dependency.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyBasedServiceRankingInterceptor

public EmptyBasedServiceRankingInterceptor()

Method Detail

open

public void open(DependencyModel dependency)

Description copied from interface: DependencyInterceptor

The interceptor is plugged to the given dependency.

Specified by:

open in interface DependencyInterceptor

Parameters:

dependency - the dependency starting using the interceptor.

getServiceReferences

public java.util.List<org.osgi.framework.ServiceReference> getServiceReferences(DependencyModel dependency,
                                                                                java.util.List<org.osgi.framework.ServiceReference> matching)

Description copied from interface: ServiceRankingInterceptor

Gets the sorted set of selected reference.

Specified by:

getServiceReferences in interface ServiceRankingInterceptor

Parameters:

dependency - the dependency

matching - the set of service to sort

Returns:

the sorted set of selected reference. This set is a sub-set potentially empty of the given list of references.

onServiceArrival

public java.util.List<org.osgi.framework.ServiceReference> onServiceArrival(DependencyModel dependency,
                                                                            java.util.List<org.osgi.framework.ServiceReference> matching,
                                                                            org.osgi.framework.ServiceReference<?> reference)

Description copied from interface: ServiceRankingInterceptor

A new service arrives in the matching set. This method is called to retrieve the new sorted set of selected services.

Specified by:

onServiceArrival in interface ServiceRankingInterceptor

Parameters:

dependency - the dependency

matching - the set of matching service

reference - the arriving reference

Returns:

the new sorted set of service

onServiceDeparture

public java.util.List<org.osgi.framework.ServiceReference> onServiceDeparture(DependencyModel dependency,
                                                                              java.util.List<org.osgi.framework.ServiceReference> matching,
                                                                              org.osgi.framework.ServiceReference<?> reference)

Description copied from interface: ServiceRankingInterceptor

A service leaves the matching set. This method is called to retrieve the new sorted set of selected services.

Specified by:

onServiceDeparture in interface ServiceRankingInterceptor

Parameters:

dependency - the dependency

matching - the set of matching service

reference - the leaving reference

Returns:

the new sorted set of service

onServiceModified

public java.util.List<org.osgi.framework.ServiceReference> onServiceModified(DependencyModel dependency,
                                                                             java.util.List<org.osgi.framework.ServiceReference> matching,
                                                                             org.osgi.framework.ServiceReference<?> reference)

Description copied from interface: ServiceRankingInterceptor

A service from the matching set was modified. This method is called to retrieve the new sorted set of selected services.

Specified by:

onServiceModified in interface ServiceRankingInterceptor

Parameters:

dependency - the dependency

matching - the set of matching service

reference - the modified service

Returns:

the new sorted set of service

close

public void close(DependencyModel dependency)

Description copied from interface: DependencyInterceptor

The interceptor won't be use anymore by the given dependency. This method is called either when the interceptor is replace or when the instance's dependency is stopping.

Specified by:

close in interface DependencyInterceptor

Parameters:

dependency - the dependency stopping its use of the interceptor