Package com.bc.ceres.core
Interface ServiceRegistry<T>
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- Type Parameters:
T
- The service type. All services are instances of that type.
- All Known Implementing Classes:
DefaultServiceRegistry
public interface ServiceRegistry<T>
A registry for services of a specific type.- Since:
- 0.6
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description void
addListener(ServiceRegistryListener<T> listener)
Adds a new registry listener.boolean
addService(T service)
Adds a new service to this registry.List<ServiceRegistryListener<T>>
getListeners()
T
getService(String className)
Gets a registered service instance for the given class name.Set<T>
getServices()
Gets all registered services.Class<T>
getServiceType()
Gets the service type.void
removeListener(ServiceRegistryListener<T> listener)
Removes an existing registry listener.boolean
removeService(T service)
Removes an existing service from this registry.
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Method Detail
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getServiceType
Class<T> getServiceType()
Gets the service type. All services in this registry are instances of this type.- Returns:
- The service type.
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getService
T getService(String className)
Gets a registered service instance for the given class name.- Parameters:
className
- The name of the service's class.- Returns:
- The service instance or
null
if no such exists.
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addService
boolean addService(T service)
Adds a new service to this registry. The method will automatically remove an already registered service of the same type. If the registry changes due to a call of this method, a change event will be fired.- Parameters:
service
- The service to be added.- Returns:
true
if the service has been added.
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removeService
boolean removeService(T service)
Removes an existing service from this registry. If the registry changes due to a call of this method, a change event will be fired.- Parameters:
service
- The service to be removed.- Returns:
true
if the service has been removed.
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getListeners
List<ServiceRegistryListener<T>> getListeners()
- Returns:
- The list of registry listeners.
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addListener
void addListener(ServiceRegistryListener<T> listener)
Adds a new registry listener.- Parameters:
listener
- The registry listener to be added.
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removeListener
void removeListener(ServiceRegistryListener<T> listener)
Removes an existing registry listener.- Parameters:
listener
- The registry listener to be removed.
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