org.jboss.msc.service

Interface Dependency

All Superinterfaces:

Value<java.lang.Object>

All Known Implementing Classes:

OptionalDependency, ServiceRegistrationImpl

interface Dependency
extends Value<java.lang.Object>

AbstractDependency represents the dependencies of a service. The counterpart of this dependency relation is AbstractDependent.

See Also:

Dependent

Method Summary

Modifier and Type	Method and Description
void	addDemand() Notify that a dependent entered active mode.
void	addDependent(Dependent dependent) Add a dependent to this dependency, establishing the dependency relation between this dependency and its dependent.
void	dependentStarted() Notify that a dependent is starting.
void	dependentStopped() Notify that a dependent is stopping.
ServiceControllerImpl<?>	getDependencyController() Get the controller for this dependency, or null if there is none currently.
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 dependency, breaking the dependency relation between this dependency and its dependent.

Method Detail

addDependent

void addDependent(Dependent dependent)

Add a dependent to this dependency, establishing the dependency relation between this dependency and its dependent. This method must not be called under a lock.

Parameters:

dependent - the dependent to add

removeDependent

void removeDependent(Dependent dependent)

Remove a dependent from this dependency, breaking the dependency relation between this dependency and its dependent. This method must not be called under a lock.

Parameters:

dependent - the dependent to remove

addDemand

void addDemand()

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

removeDemand

void removeDemand()

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

dependentStarted

void dependentStarted()

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

dependentStopped

void dependentStopped()

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

getValue

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

Get the installed instance value, if any exists.

Specified by:

getValue in interface Value<java.lang.Object>

Returns:

the installed service value

Throws:

java.lang.IllegalStateException - if an error occurs

getName

ServiceName getName()

Get the name of this dependency.

Returns:

the name

getDependencyController

ServiceControllerImpl<?> getDependencyController()

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

Returns:

the controller, or null for none