Package com.inductiveautomation.ignition.gateway.services

Interface ModuleServicesManager

public interface ModuleServicesManager

Method Summary

Modifier and Type	Method	Description
<T extends ModuleService> T	getService(java.lang.Class<T> serviceClass)	Retrieves a ModuleService indicated by the given serviceClass.
void	notifyServiceReady(ModuleService service)	To be called by a ModuleService after it is first ready for use.
void	notifyServiceShutdown(ModuleService service)	To be called by a ModuleService when it is longer ready for use.
void	registerService(java.lang.Class<? extends ModuleService> serviceClass, ModuleService service)	Registers a ModuleService for use.
void	subscribe(java.lang.Class<? extends ModuleService> serviceClass, ModuleServiceConsumer consumer)	Indicate that the given ModuleServiceConsumer is interested in using the ModuleService indicated by serviceClass.
void	unregisterService(java.lang.Class<? extends ModuleService> serviceClass)	Unregisters a ModuleService with the given serviceClass.
void	unsubscribe(java.lang.Class<? extends ModuleService> serviceClass, ModuleServiceConsumer consumer)	Indicate that the given ModuleServiceConsumer is no longer interested in the ModuleService indicated by serviceClass.

Method Detail

registerService

void registerService(java.lang.Class<? extends ModuleService> serviceClass,
                     ModuleService service)

Registers a ModuleService for use.

Parameters:

serviceClass - the Class ModuleServiceConsumers will request this service by.

service - the ModuleService provided.

unregisterService

void unregisterService(java.lang.Class<? extends ModuleService> serviceClass)

Unregisters a ModuleService with the given serviceClass.

Parameters:

serviceClass - the ModuleService Class to unregister.

getService

<T extends ModuleService> T getService(java.lang.Class<T> serviceClass)

Retrieves a ModuleService indicated by the given serviceClass. A ModuleService should not be retrieved by a ModuleServiceConsumer until it has been notified of its availability.

Parameters:

serviceClass - the Class linked to the desired ModuleService.

Returns:

the ModuleService indicated by serviceClass.

subscribe

void subscribe(java.lang.Class<? extends ModuleService> serviceClass,
               ModuleServiceConsumer consumer)

Indicate that the given ModuleServiceConsumer is interested in using the ModuleService indicated by serviceClass.

The ModuleServiceConsumer will be notified when the ModuleService is ready for use.

Parameters:

serviceClass - the Class used to indicate the ModuleService.

consumer - the ModuleServiceConsumer interested in the ModuleService.

unsubscribe

void unsubscribe(java.lang.Class<? extends ModuleService> serviceClass,
                 ModuleServiceConsumer consumer)

Indicate that the given ModuleServiceConsumer is no longer interested in the ModuleService indicated by serviceClass.

Parameters:

serviceClass - the Class used to indicate the ModuleService.

consumer - ModuleServiceConsumer to unsubscribe.

notifyServiceReady

void notifyServiceReady(ModuleService service)

To be called by a ModuleService after it is first ready for use.

All ModuleServiceConsumers that subscribed prior to this call will be notified that the service is ready.

Parameters:

service - the ModuleService that is ready.

notifyServiceShutdown

void notifyServiceShutdown(ModuleService service)

To be called by a ModuleService when it is longer ready for use.

All subscribed ModuleServiceConsumers will be notified of the shutdown.

Parameters:

service - the ModuleService that is no longer ready for use.