org.eclipse.swordfish.core.util
Interface ReadOnlyRegistry<T>

Type Parameters:

T - Type of key object (mostly component type) used in the registry.

All Known Subinterfaces:

Registry<T>

All Known Implementing Classes:

ConfigurationConsumerRegistry, EventHandlerRegistry, InterceptorExceptionListenerRegistry, InterceptorRegistry, PollableConfigurationSourceRegistry, RegistryImpl

public interface ReadOnlyRegistry<T>

Read-Only interface to internal Swordfish registries. When a component known to Swordfish is registered as OSGI service, Swordfish collects Properties and configuration information assigned to the component and stores them in a registry using the component identity (mostly the component instance) as key. The present read-only interface to such a registry is provided as argument where appropriate.

Method Summary

java.util.Set<T>	getKeySet() Read access to the components for which properties are registered.
java.util.Map<java.lang.String,?>	getProperties(T key) Read access to the property maps.

Method Detail

getKeySet

java.util.Set<T> getKeySet()

Read access to the components for which properties are registered.

Returns:

the keys of the registry, i.e. the components registered.

getProperties

java.util.Map<java.lang.String,?> getProperties(T key)

Read access to the property maps.

Parameters:

key - the component for which the properties are registerd.

Returns:

the properties for the specified component as unmodifiable Map. A return value of null indicates that a component has not been registered. A component registered with no properties will provide an empty Map.