Package org.jboss.msc.service

Class ServiceRegistrationImpl

java.lang.Object

org.jboss.msc.service.ServiceRegistrationImpl

All Implemented Interfaces:

Dependency, Value<java.lang.Object>

final class ServiceRegistrationImpl
extends java.lang.Object
implements Dependency

A single service registration.

Field Summary

Fields

Modifier and Type	Field	Description
private ServiceContainerImpl	container	The service container which contains this registration.
private int	demandedByCount	The number of dependent instances which place a demand-to-start on this registration.
private IdentityHashSet<Dependent>	dependents	The set of dependents on this registration.
private ServiceControllerImpl<?>	instance	The current instance.
private ServiceName	name	The name of this registration.

Constructor Summary

Constructors

Constructor	Description
ServiceRegistrationImpl(ServiceContainerImpl container, ServiceName name)

Method Summary

Modifier and Type	Method	Description
void	addDemand()	Notify that a dependent entered active mode.
void	addDependent(Dependent dependent)	Add a dependent to this controller.
(package private) void	clearInstance(ServiceControllerImpl<?> oldInstance)
void	dependentStarted()	Notify that a dependent is starting.
void	dependentStopped()	Notify that a dependent is stopping.
(package private) ServiceContainerImpl	getContainer()
ServiceControllerImpl<?>	getDependencyController()	Get the controller for this dependency, or null if there is none currently.
(package private) IdentityHashSet<Dependent>	getDependents()	Returns the dependents set.
(package private) ServiceControllerImpl<?>	getInstance()
ServiceName	getName()	Get the name of this dependency.
java.lang.Object	getValue()	Get the installed instance value, if any exists.
void	removeDemand()	Notify that a dependent left active mode.
void	removeDependent(Dependent dependent)	Remove a dependent from this controller.
(package private) void	setInstance(ServiceControllerImpl<?> instance)	Set the instance.

Methods inherited from class java.lang.Object

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

Field Detail

container

private final ServiceContainerImpl container

The service container which contains this registration.

name

private final ServiceName name

The name of this registration.

dependents

private final IdentityHashSet<Dependent> dependents

The set of dependents on this registration.

instance

private ServiceControllerImpl<?> instance

The current instance.

demandedByCount

private int demandedByCount

The number of dependent instances which place a demand-to-start on this registration. If this value is >0, propagate a demand to the instance, if any.

Constructor Detail

ServiceRegistrationImpl

ServiceRegistrationImpl(ServiceContainerImpl container,
                        ServiceName name)

Method Detail

getDependents

IdentityHashSet<Dependent> getDependents()

Returns the dependents set.

Returns:

the dependents set

addDependent

public void addDependent(Dependent dependent)

Add a dependent to this controller.

Specified by:

addDependent in interface Dependency

Parameters:

dependent - the dependent to add

removeDependent

public void removeDependent(Dependent dependent)

Remove a dependent from this controller.

Specified by:

removeDependent in interface Dependency

Parameters:

dependent - the dependent to remove

setInstance

void setInstance(ServiceControllerImpl<?> instance)
          throws DuplicateServiceException

Set the instance.

Parameters:

instance - the new instance

Throws:

DuplicateServiceException - if there is already an instance

clearInstance

void clearInstance(ServiceControllerImpl<?> oldInstance)

getContainer

ServiceContainerImpl getContainer()

dependentStopped

public void dependentStopped()

Description copied from interface: Dependency

Notify that a dependent is stopping. This method must not be called under a lock.

Specified by:

dependentStopped in interface Dependency

getValue

public java.lang.Object getValue()
                          throws java.lang.IllegalStateException

Description copied from interface: Dependency

Get the installed instance value, if any exists.

Specified by:

getValue in interface Dependency

Specified by:

getValue in interface Value<java.lang.Object>

Returns:

the installed service value

Throws:

java.lang.IllegalStateException - if an error occurs

getName

public ServiceName getName()

Description copied from interface: Dependency

Get the name of this dependency.

Specified by:

getName in interface Dependency

Returns:

the name

getDependencyController

public ServiceControllerImpl<?> getDependencyController()

Description copied from interface: Dependency

Get the controller for this dependency, or null if there is none currently.

Specified by:

getDependencyController in interface Dependency

Returns:

the controller, or null for none

dependentStarted

public void dependentStarted()

Description copied from interface: Dependency

Notify that a dependent is starting. This method must not be called under a lock.

Specified by:

dependentStarted in interface Dependency

addDemand

public void addDemand()

Description copied from interface: Dependency

Notify that a dependent entered active mode. This method must not be called under a lock.

Specified by:

addDemand in interface Dependency

removeDemand

public void removeDemand()

Description copied from interface: Dependency

Notify that a dependent left active mode. This method must not be called under a lock.

Specified by:

removeDemand in interface Dependency

getInstance

ServiceControllerImpl<?> getInstance()